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1 — 50 / 115
  1. added 2018-12-12
    What Can We Learn From Stringy Black Holes?Nick Huggett - manuscript
    This paper aims to address conceptual issues concerning black holes in the context of string theory, with the aim of illuminating the ontological unification of gravity and matter, and the interpretation of cosmological models. §1 describes the central concepts of the theory: the fungibility of matter and geometry, and the reduction of gravity and supergravity. The ‘standard’ interpretation presented draws on that implicit in the thinking of many (but not all) string theorists, though made more explicit and systematic than usual. (...)
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  2. added 2018-11-14
    String Theory, Non-Empirical Theory Assessment, and the Context of Pursuit.Frank Cabrera - 2018 - Synthese:1-29.
    In this paper, I offer an analysis of the radical disagreement over the adequacy of string theory. The prominence of string theory despite its notorious lack of empirical support is sometimes explained as a troubling case of science gone awry, driven largely by sociological mechanisms such as groupthink (e.g. Smolin 2006). Others, such as Dawid (2013), explain the controversy by positing a methodological revolution of sorts, according to which string theorists have quietly turned to nonempirical methods of theory assessment given (...)
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  3. added 2018-08-29
    Non-Empirical But Scientific (Response to "Physics on Edge" by George Ellis).Richard Dawid - 2017 - Inference 3 (3).
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  4. added 2018-08-08
    Duality and Ontology.Baptiste Le Bihan & James Read - 2018 - Philosophy Compass 13 (12):e12555.
    A ‘duality’ is a formal mapping between the spaces of solutions of two empirically equivalent theories. In recent times, dualities have been found to be pervasive in string theory and quantum field theory. Naïvely interpreted, duality-related theories appear to make very different ontological claims about the world—differing in e.g. space-time structure, fundamental ontology, and mereological structure. In light of this, duality-related theories raise questions familiar from discussions of underdetermination in the philosophy of science: in the presence of dual theories, what (...)
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  5. added 2018-06-05
    Target Space ≠ Space.Nick Huggett - 2017 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 59:81-88.
    This paper investigates the significance of T-duality in string theory: the indistinguisha- bility with respect to all observables, of models attributing radically different radii to space – larger than the observable universe, or far smaller than the Planck length, say. Two interpretational branch points are identified and discussed. First, whether duals are physically equivalent or not: by considering a duality of the familiar simple harmonic oscillator, I argue that they are. Unlike the oscillator, there are no measurements ‘outside’ string theory (...)
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  6. added 2018-01-12
    Delimiting the Unconceived.Richard Dawid - 2018 - Foundations of Physics 48 (5):492-506.
    It has been argued in Dawid that physicists at times generate substantial trust in an empirically unconfirmed theory based on observations that lie beyond the theory’s intended domain. A crucial role in the reconstruction of this argument of “non-empirical confirmation” is played by limitations to scientific underdetermination. The present paper discusses the question as to how generic the role of limitations to scientific underdetermination really is. It is argued that assessing such limitations is essential for generating trust in any theory’s (...)
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  7. added 2018-01-10
    Emergent Spacetime and Empirical (in)Coherence.Nick Huggett & Christian Wüthrich - 2013 - Studies in History and Philosophy of Modern Physics 44 (3):276-285.
    Numerous approaches to a quantum theory of gravity posit fundamental ontologies that exclude spacetime, either partially or wholly. This situation raises deep questions about how such theories could relate to the empirical realm, since arguably only entities localized in spacetime can ever be observed. Are such entities even possible in a theory without fundamental spacetime? How might they be derived, formally speaking? Moreover, since by assumption the fundamental entities cannot be smaller than the derived and so cannot ‘compose’ them in (...)
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  8. added 2017-12-19
    Quantum Gravity and Taoist Cosmology: Exploring the Ancient Origins of Phenomenological String Theory.Steven M. Rosen - 2017 - Progress in Biophysics and Molecular Biology 131:34-60.
    In the author’s previous contribution to this journal (Rosen 2015), a phenomenological string theory was proposed based on qualitative topology and hypercomplex numbers. The current paper takes this further by delving into the ancient Chinese origin of phenomenological string theory. First, we discover a connection between the Klein bottle, which is crucial to the theory, and the Ho-t’u, a Chinese number archetype central to Taoist cosmology. The two structures are seen to mirror each other in expressing the psychophysical (phenomenological) action (...)
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  9. added 2017-12-08
    Priority Monism Beyond Spacetime.Baptiste Le Bihan - 2018 - Metaphysica 19 (1):95-111.
    I will defend two claims. First, Schaffer's priority monism is in tension with many research programs in quantum gravity. Second, priority monism can be modified into a view more amenable to this physics. The first claim is grounded in the fact that promising approaches to quantum gravity such as loop quantum gravity or string theory deny the fundamental reality of spacetime. Since fundamental spacetime plays an important role in Schaffer's priority monism by being identified with the fundamental structure, namely the (...)
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  10. added 2017-12-03
    The Non-Local to Local Space-Time Map.Paul Karl Hoiland - unknown
    While for point particles a local theory seems to be sufficient, when it comes to extended objects like Strings and Branes you by rights are not dealing with a specifically fully localized particle to begin with. This also is not the case for non-inertial particles interacting with a wave field (like, e.g., an accelerated atom interacting with the quantized electromagnetic field). The fact that a wave has an extension seems to make a non-local treatment necessary. By the same fact a (...)
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  11. added 2017-12-01
    Inter-Theory Relations in Quantum Gravity: Correspondence, Reduction, and Emergence.Karen Crowther - 2017 - Studies in History and Philosophy of Modern Physics.
    Relationships between current theories, and relationships between current theories and the sought theory of quantum gravity (QG), play an essential role in motivating the need for QG, aiding the search for QG, and defining what would count as QG. Correspondence is the broad class of inter-theory relationships intended to demonstrate the necessary compatibility of two theories whose domains of validity overlap, in the overlap regions. The variety of roles that correspondence plays in the search for QG are illustrated, using examples (...)
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  12. added 2017-10-13
    Klein Paradox for the Bosonic Equation in the Presence of Minimal Length.M. Falek, M. Merad & M. Moumni - 2015 - Foundations of Physics 45 (5):507-524.
    We present an exact solution of the one-dimensional modified Klein Gordon and Duffin Kemmer Petiau equations with a step potential in the presence of minimal length in the uncertainty relation, where the expressions of the new transmission and reflection coefficients are determined for all cases. As an application, the Klein paradox in the presence of minimal length is discussed for all equations.
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  13. added 2017-10-04
    Conceptual Aspects of Gauge/Gravity Duality.Sebastian de Haro, Daniel Mayerson & Jeremy Butterfield - 2016 - Foundations of Physics 46 (11):1381-1425.
    We give an introductory review of gauge/gravity duality, and associated ideas of holography, emphasising the conceptual aspects. The opening sections gather the ingredients, viz. anti-de Sitter spacetime, conformal field theory and string theory, that we need for presenting, in Sect. 5, the central and original example: Maldacena’s AdS/CFT correspondence. Sections 6 and 7 develop the ideas of this example, also in applications to condensed matter systems, QCD, and hydrodynamics. Sections 8 and 9 discuss the possible extensions of holographic ideas to (...)
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  14. added 2017-09-29
    Millimeter Gravity and the Superstring Wall.John G. Cramer - unknown
    Why is gravity so weak? Why are the color forces between quarks so strong? In the standard model of particle physics, why are there so many different energies at which distinct fundamental forces are supposed to "unify", and what determines these widely separated energies? The answers to these questions may be provided by extra dimensions curled into loops a millimeter around. In other words, our universe may be only a millimeter across, in directions we are not yet able to perceive. (...)
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  15. added 2017-09-29
    Strings and Things.John Cramer - unknown
    Alternate View Column AV-19 Keywords: cosmic strings, gravitational lensing, angle deficit, superconductor, space drive Published in the April-1987 issue of Analog Science Fiction & Fact Magazine; This column was written and submitted 9/19/86 and is copyrighted © 1986, John G. Cramer. All rights reserved. No part may be reproduced in any form without the explicit permission of the author.
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  16. added 2017-02-13
    Sense Making and Learning in Complex Organisations: The String Quartet Revisited.George Tovstiga, Stefan Odenthal & Stephan Goerner - 2005 - International Journal of Management Concepts and Philosophy 1 (3):215.
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  17. added 2017-02-12
    Lee Smolin Makes a Critical Analysis of the" Theory of Everything". In a Crisis the Most Prestigious Theory in Theoretical Physics.Miguel Lorente - 2008 - Pensamiento 64 (242):1097-1102.
  18. added 2017-02-12
    The Dualities Fo Work Self-Consumption and Self-Creation.Jeff Malpas - 2005 - Philosophy Today 49 (3):256-263.
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  19. added 2017-02-11
    Debating the Final Theory.A. O. Barut - 1994 - Foundations of Physics 24 (11):1571-1576.
    Recent assertions that the present particle physics is on the path of a “final theory” which cannot be reduced to more fundamental ones is critically examined and confronted with a counter-thesis.
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  20. added 2017-01-29
    The Birth of String Theory. [REVIEW]Dean Rickles - 2013 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 44 (4):524-526.
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  21. added 2017-01-27
    Richard Dawid String Theory and the Scientific Method.Dean Rickles - 2016 - British Journal for the Philosophy of Science 67 (3):925-929.
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  22. added 2017-01-27
    What is a Random String?Cristian Calude - 1995 - Vienna Circle Institute Yearbook 3:101-113.
    Suppose that persons A and B give us a sequence of 32 bits each, saying that they were obtained from independent coin flips. If A gives the stringu = 01001110100111101001101001110101and B gives the stringv = 00000000000000000000000000000000,then we would tend to believe A and would not believe B: the string u seems to be random, but the string v does not. Further on, if we change the value of a bit in a “random” string, then the result is still a “random” (...)
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  23. added 2017-01-26
    The Superstring Theory and Lee Smolin's Troubles with Physics.Wojciech P. Grygiel - 2010 - Filozofia Nauki 18 (3):141.
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  24. added 2017-01-21
    Contributors.Philip W. Anderson - unknown
    Is string theory a futile exercise as physics, as I believe it to be? It is an interesting mathematical specialty and has produced and will produce mathematics useful in other contexts, but it seems no more vital as mathematics than other areas of very abstract or specialized math, and doesn't on that basis justify the incredible amount of effort expended on it.
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  25. added 2017-01-19
    Solution to a Generalization of the Busy Beaver Problem.David Miller - manuscript
    Let ϕ be a fixed numerical function. If the k-state Turing machine M with input string ϕ(k) (that is, started in its initial state scanning the leftmost 1 of a single string of ϕ(k) 1s on an otherwise blank tape) produces the output string m (that is, halts in its halting state scanning the leftmost 1 of a single string of m 1s on an otherwise blank tape), we shall say that the ϕ-fecundity of M is m. If M halts (...)
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  26. added 2017-01-19
    Is a Transdisciplinary Perspective on Economic Complexiy Possible?Barkley Rosser - manuscript
    “When demand and supply are in stable equilibrium, if any accident should move the scale of production from its equilibrium position, there will be instantly brought into play forces tending to push it back to that position; just as if a stone hanging by a string is displaced from its equilibrium position… But in real life such oscillations are seldom as rhythmical as those of a stone hanging freely from a string; the comparison would be more exact if the string (...)
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  27. added 2017-01-17
    Consciousness Without Constraint: Open String Theory - One Loose End.Judy B. Gardiner - 2016 - Cosmos and History 12 (2):83-98.
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  28. added 2017-01-16
    Dean Rickles. A Brief History of String Theory: From Dual Models to M-Theory. Xix + 251 Pp., Figs., Tables, Index. Berlin: Springer, 2014. €42.39. [REVIEW]Alexander Blum - 2015 - Isis 106 (4):990-991.
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  29. added 2017-01-16
    Metaphysics From String Theory: S-Dualities, Fundamentality, Modality and Pluralism.Ioan Muntean - 2015 - In T. Bigaj & Ch Wuthrich (eds.), Metaphysics in Contemporary Physics. Brill/Rodopi. pp. 259–292.
    Some philosophers of science have suggested that contemporary science should be the source of inspiration to the new analytic metaphysics (A. Chakra vartty, C. Callender, S. French, J. Ladyman, T. Maudlin, etc.). This paper explores the prospect of a string metaphysics: a research program in analytic metaphysics based on string theory. Different forms of fundamentalism and pluralism are discussed in this context. The paper focus on string metaphysics with S-dualities (a relation between models of string theory at different coupling regimes) (...)
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  30. added 2017-01-16
    Ab Initiomulti-String Frenkel–Kontorova Model for a B =a/2[111] Screw Dislocation in Bcc Iron.Mark R. Gilbert & Sergei L. Dudarev - 2010 - Philosophical Magazine 90 (7-8):1035-1061.
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  31. added 2017-01-15
    Dualities of Fields and Strings.Joseph Polchinski - 2017 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 59:6-20.
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  32. added 2017-01-15
    A Theory of Everything. Review of Richard Dawid: String Theory and the Scientific Method. [REVIEW]Samuel Schindler - 2016 - Philosophy of Science 83 (3):453-8.
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  33. added 2017-01-15
    Unified Description of Bianchi Type-I Universe in $$F\,$$ F Gravity.S. D. Katore, S. P. Hatkar & R. J. Baxi - 2016 - Foundations of Physics 46 (4):409-427.
    The present study explores the Bianchi type I universe in the frame work of f theory of gravity by considering strange quark matter attached to string cloud and domain walls in the presence and absence of magnetism. Field equations are solved by choosing a constant curvature method. It is found that obtained cosmological models are relevant to the early era of evolution of the universe. The strange quark matter may be a source of string cloud and domain walls.
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  34. added 2017-01-15
    Deriving General Relativity From String Theory.Nick Huggett & Tiziana Vistarini - 2015 - Philosophy of Science 82 (5):1163-1174.
    Weyl symmetry of the classical bosonic string Lagrangian is broken by quantization, with profound consequences described here. Reimposing symmetry requires that the background space-time satisfy the equations of general relativity: general relativity, hence classical space-time as we know it, arises from string theory. We investigate the logical role of Weyl symmetry in this explanation of general relativity: it is not an independent physical postulate but required in quantum string theory, so from a certain point of view it plays only a (...)
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  35. added 2017-01-14
    Structural Pluralism and S-Dualities: A Project in String Realism.Ioan Muntean - 2015 - In Iulian D. Toader, Gabriel Sandu & Ilie Pȃrvu (eds.), Romanian Studies in Philosophy of Science. Springer Verlag. pp. 199-219.
  36. added 2017-01-14
    A. Cappelli, E. Castellani, F. Colomo and P. Di Vecchia : The Birth of String Theory.Sebastian de Haro, Jans Henke & Darrell Tang - 2015 - Foundations of Physics 45 (6):657-660.
    The Birth of String Theory by Cappelli et al. tells the story of the beginnings of string theory and of the evolutionary process it has undergone from its origins in S-matrix theory to its current status as a candidate unification theory. The book is intended for an audience of students and researchers in physics, as well as historians and philosophers of science with some background in quantum field theory.In the 50s and early 60s, theoretical particle physics focused on formulating a (...)
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  37. added 2017-01-14
    Contested Boundaries: The String Theory Debates and Ideologies of Science.Sophie Ritson & Kristian Camilleri - 2015 - Perspectives on Science 23 (2):192-227.
    “The confrontation between string theory and its critics,” writes Jarod Lanier, “is one of the great intellectual dramas of our age”. String theory is widely regarded by its practitioners as the only the only viable option for constructing a unified theory of gravity and elementary particle physics. It has attracted an unprecedented number of researchers, including many Nobel Laureates, and has been instrumental in opening up new areas at the intersection of mathematics and physics.. Yet, since the 1980s it has (...)
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  38. added 2017-01-14
    The Role of Heuristic Appraisal in Conflicting Assessments of String Theory.Kristian Camilleri & Sophie Ritson - 2015 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 51:44-56.
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  39. added 2017-01-14
    The Interpretation of String-Theoretic Dualities.James Read - unknown
    We analyse the possibility that string-theoretic dualities present a genuine case of strong underdetermination of theory by evidence. Drawing on the parallel discussion of the hole argument, we assess the possible interpretations of dualities. We conclude that there exist at least two defensible interpretations on which dualities do not present a worrying case of underdetermination per se.
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  40. added 2017-01-14
    Does String Theory Posit Extended Simples?David John Baker - unknown
    It is sometimes claimed that string theory posits a fundamental ontology including extended mereological simples, either in the form of minimum-sized regions of space or of the strings themselves. But there is very little in the actual theory to support this claim, and much that suggests it is false. Extant string theories treat space as a continuum, and strings do not behave like simples.
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  41. added 2017-01-14
    Epilogue. Moderation, “The Silken String Running Through The Pearl-Chain Of All Virtues”.Aurelian Craiutu - 2012 - In A Virtue for Courageous Minds: Moderation in French Political Thought, 1748-1830. Princeton University Press. pp. 238-250.
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  42. added 2017-01-14
    Early String Theory as a Challenging Case Study for Philosophers.Elena Castellani - unknown
    This is the final draft of Chapter 4 of the Volume 'The Birth of String Theory' edited by A. Cappelli, E. Castellani, F. Colomo, and P. Di Vecchia, Cambridge University Press, forthcoming.
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  43. added 2016-12-15
    Review of Hyperspace by Michio Kaku (1994).Starks Michael - 2016 - In Michael Starks (ed.), Philosophy, Human Nature and the Collapse of Civilization Articles and Reviews 2006-2016 by Michael Starks 662p (2016). Michael Starks. pp. 620-626.
    "There is something fascinating about science. One gets such wholesale returns of conjecture out of such a trifling investment of fact" Mark Twain-Life on the Mississippi -/- This is a lovely book full of fascinating info on the evolution of physics and cosmology. Its main theme is how the idea of higher dimensional geometry created by Riemann, recently extended to 24 dimensions by string theory, has revolutionized our understanding of the universe. Everyone knows that Riemann created multidimensional geometry in 1854 (...)
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  44. added 2015-09-11
    SUSY in the Sky of Diamonds.Rinat M. Nugayev - 2001 - In Michael Ciaran Duffy & Mogens True Wegener (eds.), Recent Advances in Relativity Theory. Hadronic Press. pp. 193-195.
    The host of SUSY(supersymmetry) based string theories is considered. Superstrings are comprehended as possible candidates on Quantum Gravity basic objects. It is argued that superstring theories constitute mainly mathematical progress and can reconcile general relativity with quantum field theory at best. Yet they cannot provide the genuine synthesis. Superstring unification of all the four forces at hand is a formal one . It is contended that genesis and proliferation of superstrings can better be described not by philosophy of science models (...)
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  45. added 2015-04-04
    Deceptions? Assertions? Or Second-String Verbiage?: Discussion.John King-Farlow - 1981 - Philosophy 56 (215):100-105.
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  46. added 2015-03-24
    A Defence of String Theory. [REVIEW]Keizo Matsubara - 2015 - Metascience 24 (2):189-194.
    String theory has been very influential within theoretical physics for the past few decades. It is the most popular attempt to solve the problem of formulating a viable theory of quantum gravity. Furthermore, it also unifies the other fundamental forces within one theoretical framework. In string theory, it is assumed that what before was thought to be point particles should really be seen as one-dimensional extended entities, i.e. strings. Different particles are supposed to correspond to various vibrational patterns of the (...)
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  47. added 2015-03-24
    String Theory and the Scientific Method.Tiziana Vistarini - 2014 - International Studies in the Philosophy of Science 28 (1):108-111.
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  48. added 2015-03-23
    String Theory in a Nutshell.Elias Kiritsis - 2007 - Princeton University Press.
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  49. added 2015-03-23
    One String for Each Bow: Specialization in the Arts and Humanities.John Adkins Richardson - 2002 - Journal of Aesthetic Education 36 (2):113.
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  50. added 2015-03-23
    Superstring Unification and the Existence of Gravity.Barton Zwiebach - 1991 - In Evandro Agazzi & Alberto Cordero (eds.), Philosophy and the Origin and Evolution of the Universe. Kluwer Academic Publishers. pp. 75--86.
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