Results for 'Bound states'

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  1. Bound states and the Special Composition Question.McKenzie Kerry & F. A. Muller - 2017 - In Michela Massimi, Jan-Willem Romeijn & Gerhard Schurz, EPSA15 Selected Papers: The 5th conference of the European Philosophy of Science Association in Düsseldorf. Cham: Springer.
    The Special Composition Question asks under what conditions a plurality of objects form another, composite object. We propose a condition grounded in our scientific knowledge of physical reality, the essence of which is that objects form a composite object when and only when they are in a bound state – whence our Bound State Proposal. We provide a variety of reasons in favour of a mereological theory that accommodates our Proposal. We consider but reject another proposal, which is (...)
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  2.  93
    The Bound State Answer to the Special Composition Question.Claudio Calosi - 2022 - Philosophy of Science 89 (3):486-503.
    This paper provides the first thorough assessment of a physics-based answer, the Bound State Answer, to the Special Composition Question. According to the BSA some objects compose something if they are in a common bound state. The reasons to endorse such an answer, in particular, motivations coming from empirical adequacy and conservativeness, precision, simplicity, and parsimony, are critically addressed. I then go on to compare the BSA to other moderate answers to the SCQ and consider whether objections raised (...)
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  3.  41
    Bound states of the nucleon-monopole system.Tetsuo Sawada - 1993 - Foundations of Physics 23 (2):291-311.
    The energy spectrum of the bound states of the nucleon-monopole system is determined, the monopole harmonics Yq,l,m are related to Wigner's functions D m,m′ (L) of the rotation matrix, and the scattering wave functions of the proton in the dyon source field are calculated.
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  4.  59
    Bound States in Quantum Electrodynamics: Theory and Application. [REVIEW]H. Grotch & D. A. Owen - 2002 - Foundations of Physics 32 (9):1419-1457.
    The basic methods that have been used for describing bound-state quantum electrodynamics are described and critically discussed. These include the external field approximation, the quasi-potential approaches, the effective potential approach, the Bethe–Salpeter method, and the three-dimensional equations of Lepage and other workers. Other methods less frequently used but of some intrinsic interest such as applications of the Duffin–Kemmer equation are also described. A comparison of the strengths and shortcomings of these various approaches is included.
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  5.  92
    On quantum electrodynamics of two-particle bound states containing spinless particles.David A. Owen - 1994 - Foundations of Physics 24 (2):273-296.
    We develop here the general treatment arising from the Bethe-Salpeter equation for a two-particle bound system in which at least one of the particles is spinless. It is shown that a natural two-component formalism can be formulated for describing the propagators of scalar particles. This leads to a formulation of the Bethe-Salpeter equation in a form very reminiscent of the fermion-fermion case. It is also shown, that using this two-component formulation for spinless particles, the perturbation theory can be systematically (...)
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  6.  23
    Screening of bound states in semiconductors.Konrad Colbow & Dennis Dunn - 1970 - Philosophical Magazine 22 (176):237-242.
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  7.  18
    Bohmian Chaos in Multinodal Bound States.George Contopoulos & Athanasios C. Tzemos - 2022 - Foundations of Physics 52 (4):1-20.
    We consider the Bohmian trajectories in a 2-d quantum harmonic oscillator with non commensurable frequencies whose wavefunction is of the form Ψ=aΨm1,n1+bΨm2,n2+cΨm3,n3\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\Psi =a\Psi _{m_1,n_1}+b\Psi _{m_2,n_2}+c\Psi _{m_3,n_3}$$\end{document}. We first find the trajectories of the nodal points for different combinations of the quantum numbers m, n. Then we study, in detail, a case with relatively large quantum numbers and two equal m′s\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$m's$$\end{document}. We find fixed (...)
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  8.  46
    The Barbieri-Remiddi Solution of the Bound-State Problem in QED.Antonio Vairo - 1998 - Foundations of Physics 28 (5):829-841.
    We derive the so-called Barbieri-Remiddi solution of the Bethe-Salpeter equation in QED in its general form and discuss its application to the bound-state energy spectrum.
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  9. Constructive proof of the existence of bound state in one dimension.Hiroshi Ezawa - 1997 - Foundations of Physics 27 (11):1495-1509.
    A proof is given for the theorem that at least one bound state exists in a one-dimensional attractive potential however weak it may be. The proof is constructive in that it provides a method to explicitly solve the eigenvalue problem for the eigenvalues as well as the eigenfunctions. The method is well suited to precise numerical calculations.
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  10.  73
    Selection rules for dipole radiation from a relativistic bound state.M. C. Land, R. I. Arshansky & L. P. Horwitz - 1994 - Foundations of Physics 24 (4):563-578.
    Recently, in the framework of a relativistic quantum theory with invariant evolution parameter, solutions have been found for the two-body bound state, whose mass spectrum agrees with the nonrelativistic Schrödinger energy spectrum. In this paper, we study the radiative transitions of these states in the dipole approximation and find that the selection rules are identical with those of the usual nonrelativistic theory, expressed in a manifestly covariant form. In addition to the transverse and longitudinal polarizations of the nonrelativistic (...)
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  11.  20
    The multiphoton ionization of caesium and the perturbation of bound states.R. G. Evans & P. C. Thonemann - 1973 - Philosophical Magazine 27 (6):1387-1396.
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  12. This “Modern Epidemic”: Loneliness as an Emotion Cluster and a Neglected Subject in the History of Emotions.Fay Bound Alberti - 2018 - Emotion Review 10 (3):242-254.
    Loneliness is one of the most neglected aspects of emotion history, despite claims that the 21st century is the loneliest ever. This article argues against the widespread belief that modern-day loneliness is inevitable, negative, and universal. Looking at its language and etymology, it suggests that loneliness needs to be understood firstly as an “emotion cluster” composed of a variety of affective states, and secondly as a relatively recent invention, dating from around 1800. Loneliness can be positive, and as much (...)
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  13.  43
    The dependence of zone axis patterns on string integrals or the number of bound states in high energy electron diffraction.J. W. Steeds, P. M. Jones, J. E. Loveluck & K. Cooke - 1977 - Philosophical Magazine 36 (2):309-322.
  14.  37
    A simple model for nuclear forces which exhibits bound states.J. P. Kobus & M. Z. Nashed - 1971 - Foundations of Physics 1 (4):329-337.
    A repulsive core force is derived which, assuming π mesons are the field particles, gives binding energies in good agreement with binding energies per nucleon of heavy nuclei. The physical model consists of a field of relatively short range, in which emission of a π meson by a nucleon and subsequent absorption by a neighboring nucleon is equivalent to a potential well. The binding energy at the equilibrium spacing of the nucleons is the self-energy of the π mesons, which is (...)
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  15.  17
    Lower bound to the ground-state energy of the Heisenberg Hamiltonian on a triangular lattice.Chanchal K. Majumdar & B. Sriram Shastry - 1976 - Philosophical Magazine 33 (4):685-687.
  16. Circulation Bound: Hegel and Heidegger on the State.David Kolb - 1996 - In Kolb David, Phenomenology, Interpretation, and Community. SUNY Press.
  17. New bell inequalities for the singlet state: Going beyond the grothendieck bound.Itamar Pitowsky - unknown
    Contemporary versions of Bell’s argument against local hidden variable (LHV) theories are based on the Clauser Horne Shimony and Holt (CHSH) inequality, and various attempts to generalize it. The amount of violation of these inequalities cannot exceed the bound set by the Grothendieck constants. However, if we go back to the original derivation by Bell, and use the perfect anticorrelation embodied in the singlet spin state, we can go beyond these bounds. In this paper we derive two-particle Bell inequalities (...)
     
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  18.  32
    Is Practical Deliberation Bound by a Coherency Requirement? Foundational Normative States, Volitional Conflict, and Autonomy.Henk Jasper van Gils-Schmidt - 2023 - Philosophy 98 (1):55-79.
    Harry G. Frankfurt has put the problem of volitional conflict at the center of philosophical attention. If you care fundamentally about your career and your family, but these cares conflict, this conflict undermines the coherency of your decision standard and thereby your ability to choose and act autonomously. The standard response to this problem is to argue that you can overcome volitional conflict by unifying your foundational motivational states. As Frankfurt puts it, the ‘totality of things that an agent (...)
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  19.  32
    A class of bound entangled states of two qutrits.Jacek Jurkowski, Dariusz Chruściński & Adam Rutkowski - 2009 - In Krzysztof Stefanski, Open Systems and Information Dynamics. World scientific publishing company. pp. 16--02.
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  20.  69
    Quantum cognition and bounded rationality.Reinhard Blutner & Peter Beim Graben - 2016 - Synthese 193 (10).
    We consider several puzzles of bounded rationality. These include the Allais- and Ellsberg paradox, the disjunction effect, and related puzzles. We argue that the present account of quantum cognition—taking quantum probabilities rather than classical probabilities—can give a more systematic description of these puzzles than the alternate treatments in the traditional frameworks of bounded rationality. Unfortunately, the quantum probabilistic treatment does not always provide a deeper understanding and a true explanation of these puzzles. One reason is that quantum approaches introduce additional (...)
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  21.  27
    Bounded emotionality and our doxastic norms.Winnie Ma - forthcoming - Inquiry: An Interdisciplinary Journal of Philosophy.
    In this paper I have two main aims. My first aim is to introduce the notion of bounded emotionality. This notion is the analogue of that of bounded rationality in behavioural economics. Bounded rationality says, roughly, that human beings are cognitively limited with respect to their processing and memory capacities. Bounded emotionality says that we are limited in our emotional capabilities, notably in the intensity, duration, and possible combinations of our emotional states. Bounded rationality is a foundational notion in (...)
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  22.  63
    Developing bounded reasoning.Michał Walicki, Marc Bezem & Wojtek Szajnkenig - 2009 - Journal of Logic, Language and Information 18 (1):97-129.
    We introduce a three-tiered framework for modelling and reasoning about agents who (i) can use possibly complete reasoning systems without any restrictions but who nevertheless are (ii) bounded in the sense that they never reach infinitely many results and, finally, who (iii) perform their reasoning in time. This last aspect does not concern so much the time it takes for agents to actually carry out their reasoning, as the time which can bring about external changes in the agents’ states (...)
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  23.  63
    Network effects in a bounded confidence model.Igor Douven & Rainer Hegselmann - 2022 - Studies in History and Philosophy of Science Part A 94 (C):56-71.
    The bounded confidence model has become a popular tool for studying communities of epistemically interacting agents. The model makes the idealizing assumption that all agents always have access to all other agents’ belief states. We draw on resources from network epistemology to do away with this assumption. In the model to be proposed, we impose an explicit communication network on a community, due to which each agent has access to the beliefs of only a selection of other agents. A (...)
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  24.  99
    Bounded Revision: Two-Dimensional Belief Change Between Conservative and Moderate Revision.Hans Rott - 2012 - Journal of Philosophical Logic 41 (1):173-200.
    This paper presents the model of ‘bounded revision’ that is based on two-dimensional revision functions taking as arguments pairs consisting of an input sentence and a reference sentence. The key idea is that the input sentence is accepted as far as (and just a little further than) the reference sentence is ‘cotenable’ with it. Bounded revision satisfies the AGM axioms as well as the Same Beliefs Condition (SBC) saying that the set of beliefs accepted after the revision does not depend (...)
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  25. Bound by Recognition: The Politics of Identity After Hegel.Patchen P. Markell - 1999 - Dissertation, Harvard University
    The concept of "recognition" lies at the intersection between contemporary identity politics and the philosophy of Hegel. While Hegel's philosophy is often invoked to provide normative grounding for political projects devoted to overcoming misrecognition, Hegel's analysis of recognition actually supports an immanent critique of such politics. It provides us with diagnostic tools that show how the pursuit of recognition, especially in the context of modern, state-centered politics, works both for and against the values of agency and plurality it is supposed (...)
     
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  26.  34
    (1 other version)Humanity Bounded and Unbounded: The Regulation of External Self-determination under International Law.Robert Howse & Ruti Teitel - 2013 - Law and Ethics of Human Rights 7 (2):155-184.
    One of the most complex and uncertain areas of international legal doctrine concerns how to deal with the aspiration of a people to achieve self-determination through the establishment of a new state and the related claim to a specific territory over which statehood is to be exercised. Recently, when the General Assembly of the United Nations referred to the International Court of Justice the question of the legality of the declaration of independence by Kosovar Albanians, the Court was given an (...)
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  27.  71
    Bounded rationality and legal scholarship.Matthew D. Adler - manuscript
    Decision theory seems to offer a very attractive normative framework for individual and social choice under uncertainty. The decisionmaker should think of her choice situation, at any given moment, in terms of a set of possible outcomes, that is, specifications of the possible consequences of choice, described in light of the decisionmaker's goals; a set of possible actions; and a "state set" consisting of possible prior "states of the world." It is this framework for choice which provides the foundation (...)
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  28. Bound by the Evidence.Scott Stapleford & Kevin McCain - 2020 - In Scott Stapleford & Kevin McCain, Epistemic Duties: New Arguments, New Angles. New York: Routledge. pp. 113–124.
    An evidentialist can be extreme about epistemic requirements in a couple of different ways. At the reductionist end of the spectrum are those who think our epistemic obligations are fully satisfied by the mere having of evidential fit—where having implies nothing about doing. Your beliefs ought to align with your evidence, in other words, but there’s nothing you’re obligated to do in order to get yourself into the epistemically optimal position. At the expansionist end of the spectrum are those who (...)
     
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  29.  66
    Rationalizing epistemic bounded rationality.Konrad Grabiszewski - 2015 - Theory and Decision 78 (4):629-637.
    The standard model of knowledge, \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$$$\end{document}, consists of state space, Ω\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\varOmega $$\end{document}, and possibility correspondence, P\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$P$$\end{document}. Usually, it is assumed that P\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$P$$\end{document} satisfies all knowledge axioms. Violating at least one of these axioms is defined as epistemic bounded rationality. If this happens, a researcher may (...)
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  30.  71
    Decision Theory with Resource‐Bounded Agents.Joseph Y. Halpern, Rafael Pass & Lior Seeman - 2014 - Topics in Cognitive Science 6 (2):245-257.
    There have been two major lines of research aimed at capturing resource-bounded players in game theory. The first, initiated by Rubinstein (), charges an agent for doing costly computation; the second, initiated by Neyman (), does not charge for computation, but limits the computation that agents can do, typically by modeling agents as finite automata. We review recent work on applying both approaches in the context of decision theory. For the first approach, we take the objects of choice in a (...)
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  31.  21
    Propagation Properties of Bound Electromagnetic Field: Classical and Quantum Viewpoints.A. L. Kholmetskii, O. V. Missevitch, T. Yarman & R. Smirnov-Rueda - 2020 - Foundations of Physics 50 (11):1686-1722.
    The present work is motivated by recent experiments aimed to measure the propagation velocity of bound electromagnetic field that reveal no retardation in the absence of EM radiation. We show how these findings can be incorporated into the mathematical structure of special relativity theory that allows us to reconsider some selected problems of classical and quantum electrodynamics. In particular, we come to the conclusion that the total four-momentum for a classical system “particles plus fields” ought to be a present (...)
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  32.  89
    Resource bounded belief revision.Renata Wassermann - 1999 - Erkenntnis 50 (2-3):429-446.
    The AGM paradigm for belief revision provides a very elegant and powerful framework for reasoning about idealized agents. The paradigm assumes that the modeled agent is a perfect reasoner with infinite memory. In this paper we propose a framework to reason about non-ideal agents that generalizes the AGM paradigm. We first introduce a structure to represent an agent's belief states that distinguishes different status of beliefs according to whether or not they are explicitly represented, whether they are currently active (...)
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  33. Bounded rationality in social sciences.Juan Fco Álvarez & Javier Echeverría - 2008 - Poznan Studies in the Philosophy of the Sciences and the Humanities 96 (1):173-189.
    Empirical research on Rational Choice Theory has brought up two focus of the economics laws problem. On one hand, we find the authors who state that the neoclassical economics laws are explanatory and predictive on specific cases: in transparent contexts in which the standard rationality operates successfully. On the other hand, we find the authors who state that the descriptive theories of the rational choice opens up a research path in which fundamental principles of the neoclassical building could be questioned. (...)
     
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  34.  15
    The microbial state: global thriving and the body politic.Stefanie R. Fishel - 2017 - Minneapolis: University of Minnesota Press.
    For three centuries, concepts of the state have been animated by one of the most powerful metaphors in politics: the body politic, a claustrophobic and bounded image of sovereignty. Climate change, neoliberalism, mass migration, and other aspects of the late Anthropocene have increasingly revealed the limitations of this metaphor. Just as the human body is not whole and separate from other bodies--comprising microbes, bacteria, water, and radioactive isotopes--Stefanie R. Fishel argues that the body politic of the state exists in dense (...)
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  35.  39
    A bound on synchronically interpretable structure.Jon M. Slack - 2004 - Mind and Language 19 (3):305–333.
    Multiple explanatory frameworks may be required to provide an adequate account of human cognition. This paper embeds the classical account within a neural network framework, exploring the encoding of syntacticallystructured objects over the synchronicdiachronic characteristics of networks. Synchronic structure is defined in terms of temporal binding and the superposition of states. To accommodate asymmetric relations, synchronic structure is subject to the type uniqueness constraint. The nature of synchronic structure is shown to underlie Xbar theory that characterizes the phrasal structure (...)
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  36.  26
    Known Unknowns: Time Bounds and Knowledge of Ignorance.Yoram Moses & Ido Ben-Zvi - 2018 - In Hans van Ditmarsch & Gabriel Sandu, Jaakko Hintikka on Knowledge and Game Theoretical Semantics. Cham, Switzerland: Springer. pp. 187-206.
    This paper studies the role that known bounds on message transmission times in a computer network play on the evolution of the epistemic state over time. A connection to cones of causal influence analogous to, and more general than, light cones is presented. Focusing on lower bounds on message transmission times, an analysis is presented of how knowledge about when others are guaranteed to be ignorant about an event of interest can arise. This has implications in competitive settings, in which (...)
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  37. The Bounded Body. On the Sense of Bodily Ownership and the Experience of Space.Carlota Serrahima - 2023 - In M. Guillot & M. Garcia-Carpintero, Self-Experience: Essays on Inner Awareness. Oxford University Press.
    Bodily sensations are mental states typically suitable to be reported in judgments in which a first-person indexical is used to qualify the felt body. In other words, subjects typically have a sense of bodily ownership for the body that they feel in bodily sensations. This paper puts forward, firstly, three desiderata that theories on the sense of bodily ownership should meet. Secondly, it assesses two views that account for the sense of bodily ownership in terms of the spatial content (...)
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  38.  19
    Abundant Bounded and Unbounded Solitary, Periodic, Rogue-Type Wave Solutions and Analysis of Parametric Effect on the Solutions to Nonlinear Klein–Gordon Model.Mohammad Mobarak Hossain, Alrazi Abdeljabbar, Harun-Or Roshid, Md Mamunur Roshid & Abu Naim Sheikh - 2022 - Complexity 2022:1-19.
    This paper exploits the modified simple equation and dynamical system schemes to integrate the Klein–Gordon model amid quadratic nonlinearity arising in nonlinear optics, quantum theories, and solid state physics. By implementing the modified simple equation technique, we develop some disguise adaptation of analytical solutions in terms of hyperbolic, exponential, and trigonometric functions with some special parameters. We apply the dynamical system to bifurcate the model and draw distinct phase portraits on unlike parametric constraints. Following each orbit of all phase portraits, (...)
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  39.  13
    Induction, bounding, weak combinatorial principles, and the homogeneous model theorem.Denis Roman Hirschfeldt - 2017 - Providence, Rhode Island: American Mathematical Society. Edited by Karen Lange & Richard A. Shore.
    Goncharov and Peretyat'kin independently gave necessary and sufficient conditions for when a set of types of a complete theory is the type spectrum of some homogeneous model of. Their result can be stated as a principle of second order arithmetic, which is called the Homogeneous Model Theorem (HMT), and analyzed from the points of view of computability theory and reverse mathematics. Previous computability theoretic results by Lange suggested a close connection between HMT and the Atomic Model Theorem (AMT), which (...) that every complete atomic theory has an atomic model. The authors show that HMT and AMT are indeed equivalent in the sense of reverse mathematics, as well as in a strong computability theoretic sense and do the same for an analogous result of Peretyat'kin giving necessary and sufficient conditions for when a set of types is the type spectrum of some model. (shrink)
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  40. ‘‘Just forget it.’’ Memory distortions as bounded rationality.Bruno S. Frey - 2005 - Mind and Society 4 (1):13-25.
    Distortions in memory impose important bounds on rationality but have been largely disregarded in economics. While it is possible to learn, it is more difficult, and sometimes impossible, to unlearn. This retention effect lowers individual utility directly or via reduced productivity, and adds costs to principal-agent relationships. The engraving effect states that the more one tries to forget a piece of information the more vivid it stays in memory, leading to a paradoxical outcome. The effects are based on, and (...)
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  41. Upper bounds on locally countable admissible initial segments of a Turing degree hierarchy.Harold T. Hodes - 1981 - Journal of Symbolic Logic 46 (4):753-760.
    Where AR is the set of arithmetic Turing degrees, 0 (ω ) is the least member of { $\mathbf{\alpha}^{(2)}|\mathbf{a}$ is an upper bound on AR}. This situation is quite different if we examine HYP, the set of hyperarithmetic degrees. We shall prove (Corollary 1) that there is an a, an upper bound on HYP, whose hyperjump is the degree of Kleene's O. This paper generalizes this example, using an iteration of the jump operation into the transfinite which is (...)
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  42.  24
    Aesthetics and Politics of Space in Russia and Japan: A Comparative Philosophical Study. By Thorsten Botz-Bornstein. Lanham, MD: Lexington Books, 2009. Pp. xvi+ 173. Price not given. Awareness Bound and Unbound: Buddhist Essays. By David R. Loy. Albany: State University of New York Press, 2009. Pp. vii+ 208. Hardcover $70.00. Paper. [REVIEW]John Powers - 2010 - Philosophy East and West 60 (3):441-442.
  43. Visual Memory and the Bounds of Authenticity.Sven Bernecker - 2015 - In Danièle Moyal-Sharrock, Volker Munz & Annalisa Coliva, Mind, Language and Action: Proceedings of the 36th International Wittgenstein Symposium. Boston: De Gruyter. pp. 445-464.
    It has long been known that memory need not be a literal reproduction of the past but may be a constructive process. To say that memory is a constructive process is to say that the encoded content may differ from the retrieved content. At the same time, memory is bound by the authenticity constraint which states that the memory content must be true to the subject's original perception of reality. This paper addresses the question of how the constructive (...)
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  44.  25
    The State of Research on Africa in Business and Management: Insights From a Systematic Review of Key International Journals.Miguel Rivera-Santos & Ans Kolk - 2018 - Business and Society 57 (3):415-436.
    Aiming at a better understanding of the extent to which Africa-focused research has helped develop context-bound, context-specific, and context-free knowledge, the authors present the findings from a literature review of journal articles with an African context. A systematic search resulted in 271 articles with African data and 139 Africa-focused articles published in 63 top business journals and related disciplines from 2010 onwards. The sample included all journals belonging to the University of Texas Dallas and Financial Times research rankings, as (...)
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  45. Properties of QBist State Spaces.D. M. Appleby, Åsa Ericsson & Christopher A. Fuchs - 2011 - Foundations of Physics 41 (3):564-579.
    Every quantum state can be represented as a probability distribution over the outcomes of an informationally complete measurement. But not all probability distributions correspond to quantum states. Quantum state space may thus be thought of as a restricted subset of all potentially available probabilities. A recent publication (Fuchs and Schack, arXiv:0906.2187v1, 2009) advocates such a representation using symmetric informationally complete (SIC) measurements. Building upon this work we study how this subset—quantum-state space—might be characterized. Our leading characteristic is that the (...)
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  46.  13
    Recursive State and Random Fault Estimation for Linear Discrete Systems under Dynamic Event-Based Mechanism and Missing Measurements.Xuegang Tian & Shaoying Wang - 2020 - Complexity 2020:1-10.
    This paper is concerned with the event-based state and fault estimation problem for a class of linear discrete systems with randomly occurring faults and missing measurements. Different from the static event-based transmission mechanism with a constant threshold, a dynamic event-based mechanism is exploited here to regulate the threshold parameter, thus further reducing the amount of data transmission. Some mutually independent Bernoulli random variables are used to characterize the phenomena of ROFs and missing measurements. In order to simultaneously estimate the system (...)
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  47. Bounded rationality in social sciences.Javier Echeverría & José Francisco Álvarez - 2008 - Poznan Studies in the Philosophy of the Sciences and the Humanities 96 (1):173-189.
    Empirical research on Rational Choice Theory has brought up two focus of the economics laws problem. On one hand, we find the authors who state that the neoclassical economics laws are explanatory and predictive on specific cases: in transparent contexts in which the standard rationality operates successfully. On the other hand, we find the authors who state that the descriptive theories of the rational choice opens up a research path in which fundamental principles of the neoclassical building could be questioned. (...)
     
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  48. (1 other version)Rogue States.Noam Chomsky - unknown
    The most interesting feature of the debate over the Iraq crisis is that it never took place. True, many words flowed, and there was dispute about how to proceed. But discussion kept within rigid bounds that excluded the obvious answer: the U.S. and UK should act in accord with their laws and treaty obligations.
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  49.  10
    Fundamental weight systems are quantum states.David Corfield, Hisham Sati & Urs Schreiber - unknown
    Weight systems on chord diagrams play a central role in knot theory and Chern-Simons theory; and more recently in stringy quantum gravity. We highlight that the noncommutative algebra of horizontal chord diagrams is canonically a star-algebra, and ask which weight systems are positive with respect to this structure; hence we ask: Which weight systems are quantum states, if horizontal chord diagrams are quantum observables? We observe that the fundamental gl(n)-weight systems on horizontal chord diagrams with N strands may be (...)
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    Perfect State Distinguishability and Computational Speedups with Postselected Closed Timelike Curves.Todd A. Brun & Mark M. Wilde - 2012 - Foundations of Physics 42 (3):341-361.
    Bennett and Schumacher’s postselected quantum teleportation is a model of closed timelike curves (CTCs) that leads to results physically different from Deutsch’s model. We show that even a single qubit passing through a postselected CTC (P-CTC) is sufficient to do any postselected quantum measurement with certainty, and we discuss an important difference between “Deutschian” CTCs (D-CTCs) and P-CTCs in which the future existence of a P-CTC might affect the present outcome of an experiment. Then, based on a suggestion of Bennett (...)
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