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Valia Allori
Northern Illinois University
  1. Space, Time, and (How They) Matter: A Discussion About Some Metaphysical Insights Provided by Our Best Fundamental Physical Theories.Valia Allori - 2016 - In G. C. Ghirardi & S. Wuppuluri (eds.), Space, Time, and The Limits of Human Understanding. Springer. pp. 95-107.
    This paper is a brief (and hopelessly incomplete) non-standard introduction to the philosophy of space and time. It is an introduction because I plan to give an overview of what I consider some of the main questions about space and time: Is space a substance over and above matter? How many dimensions does it have? Is space-time fundamental or emergent? Does time have a direction? Does time even exist? Nonetheless, this introduction is not standard because I conclude the discussion by (...)
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  2. On the Common Structure of Bohmian Mechanics and the Ghirardi–Rimini–Weber Theory Dedicated to GianCarlo Ghirardi on the Occasion of His 70th Birthday.Valia Allori, Sheldon Goldstein, Roderich Tumulka & Nino Zanghi - 2008 - British Journal for the Philosophy of Science 59 (3):353 - 389.
    Bohmian mechanics and the Ghirardi-Rimini-Weber theory provide opposite resolutions of the quantum measurement problem: the former postulates additional variables (the particle positions) besides the wave function, whereas the latter implements spontaneous collapses of the wave function by a nonlinear and stochastic modification of Schrödinger's equation. Still, both theories, when understood appropriately, share the following structure: They are ultimately not about wave functions but about 'matter' moving in space, represented by either particle trajectories, fields on space-time, or a discrete set of (...)
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  3. Primitive Ontology in a Nutshell.Valia Allori - 2015 - International Journal of Quantum Foundations 1 (2):107-122.
    The aim of this paper is to summarize a particular approach of doing metaphysics through physics - the primitive ontology approach. The idea is that any fundamental physical theory has a well-defined architecture, to the foundation of which there is the primitive ontology, which represents matter. According to the framework provided by this approach when applied to quantum mechanics, the wave function is not suitable to represent matter. Rather, the wave function has a nomological character, given that its role in (...)
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  4. Primitive Ontology and the Structure of Fundamental Physical Theories.Valia Allori - 2013 - In Alyssa Ney & David Z. Albert (eds.), The Wave Function: Essays in the Metaphysics of Quantum Mechanics. Oxford University Press.
    For a long time it was believed that it was impossible to be realist about quantum mechanics. It took quite a while for the researchers in the foundations of physics, beginning with John Stuart Bell [Bell 1987], to convince others that such an alleged impossibility had no foundation. Nowadays there are several quantum theories that can be interpreted realistically, among which Bohmian mechanics, the GRW theory, and the many-worlds theory. The debate, though, is far from being over: in what respect (...)
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  5. Predictions and Primitive Ontology in Quantum Foundations: A Study of Examples.Valia Allori, Sheldon Goldstein, Roderich Tumulka & Nino Zanghi - 2014 - British Journal for the Philosophy of Science 65 (2):323-352.
    A major disagreement between different views about the foundations of quantum mechanics concerns whether for a theory to be intelligible as a fundamental physical theory it must involve a ‘primitive ontology’ (PO), i.e. variables describing the distribution of matter in four-dimensional space–time. In this article, we illustrate the value of having a PO. We do so by focusing on the role that the PO plays for extracting predictions from a given theory and discuss valid and invalid derivations of predictions. To (...)
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  6. Many Worlds and Schrodinger's First Quantum Theory.Valia Allori, Sheldon Goldstein, Roderich Tumulka & Nino Zanghi - 2011 - British Journal for the Philosophy of Science 62 (1):1-27.
    Schrödinger’s first proposal for the interpretation of quantum mechanics was based on a postulate relating the wave function on configuration space to charge density in physical space. Schrödinger apparently later thought that his proposal was empirically wrong. We argue here that this is not the case, at least for a very similar proposal with charge density replaced by mass density. We argue that when analyzed carefully, this theory is seen to be an empirically adequate many-worlds theory and not an empirically (...)
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  7. Quantum Mechanics and Paradigm Shifts.Valia Allori - 2015 - Topoi 34 (2):313-323.
    It has been argued that the transition from classical to quantum mechanics is an example of a Kuhnian scientific revolution, in which there is a shift from the simple, intuitive, straightforward classical paradigm, to the quantum, convoluted, counterintuitive, amazing new quantum paradigm. In this paper, after having clarified what these quantum paradigms are supposed to be, I analyze whether they constitute a radical departure from the classical paradigm. Contrary to what is commonly maintained, I argue that, in addition to radical (...)
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  8. Primitive Ontology and the Classical World.Valia Allori - 2016 - In R. Kastner, J. Jeknic-Dugic & G. Jaroszkiewicz (eds.), Quantum Structural Studies: Classical Emergence from the Quantum Level. World Scientific. pp. 175-199.
    In this paper I present the common structure of quantum theories with a primitive ontology, and discuss in what sense the classical world emerges from quantum theories as understood in this framework. In addition, I argue that the primitive ontology approach is better at answering this question than the rival wave function ontology approach or any other approach in which the classical world is nonreductively ‘emergent:’ even if the classical limit within this framework needs to be fully developed, the difficulties (...)
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  9. Scientific Realism Without the Wave-Function: An Example of Naturalized Quantum Metaphysics.Valia Allori - 2020 - In Juha Saatsi & Steven French (eds.), Scientific Realism and the Quantum. Oxford University Press.
    Scientific realism is the view that our best scientific theories can be regarded as (approximately) true. This is connected with the view that science, physics in particular, and metaphysics could (and should) inform one another: on the one hand, science tells us what the world is like, and on the other hand, metaphysical principles allow us to select between the various possible theories which are underdetermined by the data. Nonetheless, quantum mechanics has always been regarded as, at best, puzzling, if (...)
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  10. A New Argument for the Nomological Interpretation of the Wave Function: The Galilean Group and the Classical Limit of Nonrelativistic Quantum Mechanics.Valia Allori - 2017 - International Studies in the Philosophy of Science (2):177-188.
    In this paper I investigate, within the framework of realistic interpretations of the wave function in nonrelativistic quantum mechanics, the mathematical and physical nature of the wave function. I argue against the view that mathematically the wave function is a two-component scalar field on configuration space. First, I review how this view makes quantum mechanics non- Galilei invariant and yields the wrong classical limit. Moreover, I argue that interpreting the wave function as a ray, in agreement many physicists, Galilei invariance (...)
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  11. Free Will in a Quantum World?Valia Allori - 2019 - In J. De Barros & Carlos Montemayor (eds.), Quanta and Mind: Essays on the Connection between Quantum Mechanics and the Consciousness. Synthese Library.
    In this paper, I argue that Conway and Kochen’s Free Will Theorem (1,2) to the conclusion that quantum mechanics and relativity entail freedom for the particles, does not change the situation in favor of a libertarian position as they would like. In fact, the theorem more or less implicitly assumes that people are free, and thus it begs the question. Moreover, it does not prove neither that if people are free, so are particles, nor that the property people possess when (...)
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  12. On the Metaphysics of Quantum Mechanics.Valia Allori - 2013 - In Soazig Lebihan (ed.), Precis de la Philosophie de la Physique. Vuibert.
    What is quantum mechanics about? The most natural way to interpret quantum mechanics realistically as a theory about the world might seem to be what is called wave function ontology: the view according to which the wave function mathematically represents in a complete way fundamentally all there is in the world. Erwin Schroedinger was one of the first proponents of such a view, but he dismissed it after he realized it led to macroscopic superpositions (if the wave function evolves in (...)
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  13. Maxwell's Paradox: The Metaphysics of Classical Electrodynamics and its Time Reversal Invariance.Valia Allori - 2015 - Analytica: an electronic, open-access journal for philosophy of science 1:1-19.
    In this paper, I argue that the recent discussion on the time - reversal invariance of classical electrodynamics (see (Albert 2000: ch.1), (Arntzenius 2004), (Earman 2002), (Malament 2004),(Horwich 1987: ch.3)) can be best understood assuming that the disagreement among the various authors is actually a disagreement about the metaphysics of classical electrodynamics. If so, the controversy will not be resolved until we have established which alternative is the most natural. It turns out that we have a paradox, namely that the (...)
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  14.  13
    Book Review Of: "Philosophy of Physics - Quantum Theory" by T. Maudlin. [REVIEW]Valia Allori - 2020 - British Journal for the Philosophy of Science Review of Books 1.
    This book is an introduction to the foundation of quantum mechanics. As such, this book is perfect: it is the book that my former, physics undergraduate, self would have wanted to read. At the time, like typical physics undergraduates around the globe, I was taught to give up hope of ever understanding what quantum theory claims: at best, the theory is an instrument to predict experimental results. No matter how much we might dislike it, we have to accept it; there (...)
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  15.  87
    From No-Signaling to Spontaneous Localization Theories.Valia Allori - 2019 - International Journal of Quantum Foundations 5:1-10.
    GianCarlo Ghirardi passed away on June 1st, 201. He would have turned 83 on October 28, 2018. He was without any doubt one of the most prominent theoretical physicists working on the foundation and the philosophy of quantum mechanics. In this paper I review some of his achievements and underline how his research influenced the philosophy of physics community.
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  16.  61
    Book Review Of: "The Road to Maxwell's Demon: Conceptual Foundations of Statistical Mechanics" by M. Hemmo and O. Shenker. [REVIEW]Valia Allori - 2013 - International Studies in the Philosophy of Science 27 (4):453-456.
    Book review of Meir Hemmo and Orly Shenker's book "The Road to Maxwell's Demon: Conceptual Foundations of Statistical Mechanics.".
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  17. Scientific Realism and Primitive Ontology Or: The Pessimistic Induction and the Nature of the Wave Function.Valia Allori - 2018 - Lato Sensu 1 (5):69-76.
    In this paper I wish to connect the recent debate in the philosophy of quantum mechanics concerning the nature of the wave function to the historical debate in the philosophy of science regarding the tenability of scientific realism. Being realist about quantum mechanics is particularly challenging when focusing on the wave function. According to the wave function ontology approach, the wave function is a concrete physical entity. In contrast, according to an alternative viewpoint, namely the primitive ontology approach, the wave (...)
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  18. E' completa la descrizione della realta' fisica fornita dalla meccanica quantistica?Valia Allori & Nino Zanghi - 2007 - Il Protagora 9:163-180.
    In this paper (in Italian) we discuss how quantum theories can be thought of as having the same structure. If so, even the theories that appear to be about the wave function are incomplete, even if in a way which is very different from the one Einstein proposed.
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  19.  49
    Quantum Mechanics, Time and Ontology.Valia Allori - 2019 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 66:145-154.
    Against what is commonly accepted in many contexts, it has been recently suggested that both deterministic and indeterministic quantum theories are not time‐reversal invariant, and thus time is handed in a quantum world. In this paper, I analyze these arguments and evaluate possible reactions to them. In the context of deterministic theories, first I show that this conclusion depends on the controversial assumption that the wave‐function is a physically real scalar field in configuration space. Then I argue that answers which (...)
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  20.  7
    Why Scientific Realists Should Reject the Second Dogma of Quantum Mechanics.Valia Allori - 2020 - In Meir Hemmo & Orly Shenker (eds.), Quantum, Probability, Logic: Itamar Pitowsky’s Work and Influence. Springer. pp. 19-48.
    The information-theoretic approach to quantum mechanics, proposed by Bub and Pitowsky, is a realist approach to quantum theory which rejects the “two dogmas” of quantum mechanics: in this theory measurement results are not analysed in terms of something more fundamental, and the quantum state does not represent physical entities. Bub and Pitowsky’s approach has been criticized because their rejection of the first dogma relies on their argument that kinematic explanations are more satisfactory than dynamical ones. However, little attention has been (...)
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  21.  67
    Response to Authors "The Road to Maxwell's Demon".Valia Allori - 2015 - International Studies in the Philosophy of Science 29 (1):94-98.
    I recently reviewed Hemmo and Shenker's book "The Road to Maxwell's Demon" and the authors subsequently replied to my criticism. Here is my response to them.
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  22. On the Classical Limit of Quantum Mechanics.Valia Allori & Nino Zanghi - 2008 - Foundations of Physics 10.1007/S10701-008-9259-4 39 (1):20-32.
    Contrary to the widespread belief, the problem of the emergence of classical mechanics from quantum mechanics is still open. In spite of many results on the ¯h → 0 asymptotics, it is not yet clear how to explain within standard quantum mechanics the classical motion of macroscopic bodies. In this paper we shall analyze special cases of classical behavior in the framework of a precise formulation of quantum mechanics, Bohmian mechanics, which contains in its own structure the possibility of describing (...)
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  23.  49
    La Natura Delle Cose: Introduzione Ai Fondamenti E Alla Filosofia Della Fisica.Valia Allori, Mauro Dorato, Federico Laudisa & Nino Zanghi (eds.) - 2005 - Carocci.
    The year 2005 has been named the World Year of Physics in recognition of the 100th anniversary of Albert Einstein's "Miracle Year," in which he published four landmark papers which had deep and great influence on the last and the current century: quantum theory, general relativity, and statistical mechanics. Despite the enormous importance that Einstein’s discoveries played in these theories, most physicists adopt a version of quantum theory which is incompatible with the idea that motivated Einstein in the first place. (...)
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  24. What is Bohmian Mechanics.Valia Allori & Nino Zanghi - 2004 - International Journal of Theoretical Physics 43:1743-1755.
    Bohmian mechanics is a quantum theory with a clear ontology. To make clear what we mean by this, we shall proceed by recalling first what are the problems of quantum mechanics. We shall then briefly sketch the basics of Bohmian mechanics and indicate how Bohmian mechanics solves these problems and clarifies the status and the role of of the quantum formalism.
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  25. La storia del gatto che era sia vivo che morto.Valia Allori - 2009 - In Enrico Giannetto (ed.), Da Archimede a Majorana: la fisica nel suo divenire. Guaraldi. pp. 273-283.
    Questa è la breve storia , forse un poco romanzata, del gatto che, se non forse il più citato, è di sicuro il più bistrattato della storia della fisica e della filosofia: il gatto di Schrödinger.
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  26. Ontologie quantistiche di particelle, campi e lampi.Valia Allori & Nino Zanghi - 2007 - In Vincenzo Fano & Mauro Antonelli (eds.), "Strutture dello spazio tra fisica e psicologia" Teorie e Modelli XII, III. Pitagora. pp. 9-29.
    La meccanica quantistica è una delle più grandi conquiste intellettuali del xx secolo. Le sue leggiregolano il mondo atomico e subatomico e si riverberano su una miriade di fenomeni del mondomacroscopico, dalla formazione dei cristalli alla superconduttività, dalle proprietà dei fluidi a bassatemperatura agli spettri di emissione di una candela che brucia o di una supernova che esplode, daimeccanismi di combustione della fornace solare ai principi di base delle nanotecnologie. Non c’èquasi nulla nel mondo che ci circonda su cui non (...)
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  27. Response.Valia Allori - 2015 - International Studies in the Philosophy of Science 29 (1):94-98.
  28.  94
    Seven Steps Toward the Classical World.Valia Allori, Detlef Duerr, Nino Zanghi & Sheldon Goldstein - 2002 - Journal of Optics B 4:482–488.
    Classical physics is about real objects, like apples falling from trees, whose motion is governed by Newtonian laws. In standard quantum mechanics only the wave function or the results of measurements exist, and to answer the question of how the classical world can be part of the quantum world is a rather formidable task. However, this is not the case for Bohmian mechanics, which, like classical mechanics, is a theory about real objects. In Bohmian terms, the problem of the classical (...)
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  29.  39
    Peter J. Lewis. Quantum Ontology: A Guide to the Metaphysics of Quantum Mechanics. [REVIEW]Valia Allori - 2018 - Philosophy of Science 85 (4):735-738.
    This is a review of Peter J. Lewis' book "Quantum Ontology: A Guide to the Metaphysics of Quantum Mechanics.".
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  30.  33
    Fundamental Physical Theories: Mathematical Structures Grounded on a Primitive Ontology.Valia Allori - 2007 - Dissertation, Rutgers
    In my dissertation I analyze the structure of fundamental physical theories. I start with an analysis of what an adequate primitive ontology is, discussing the measurement problem in quantum mechanics and theirs solutions. It is commonly said that these theories have little in common. I argue instead that the moral of the measurement problem is that the wave function cannot represent physical objects and a common structure between these solutions can be recognized: each of them is about a clear three-dimensional (...)
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  31. How to Make Sense of Quantum Mechanics : Fundamental Physical Theories and Primitive Ontology.Valia Allori - manuscript
    Quantum mechanics has always been regarded as, at best, puzzling, if not contradictory. The aim of the paper is to explore a particular approach to fundamental physical theories, the one based on the notion of primitive ontology. This approach, when applied to quantum mechanics, makes it a paradox-free theory.
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  32. Book Review Of: "Everywhere and Everywhen: Adventures in Physics and Philosophy" by N. Huggett. [REVIEW]Valia Allori - 2011 - Notre Dame Philosophical Reviews 2011 (1).
    Book Review of: "Everywhere and Everywhen: Adventures in Physics and Philosophy" by Nick Huggett.
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  33. Book Review Of: "Do We Really Understand Quantum Mechanics?" by Franck Laloë. [REVIEW]Valia Allori - 2013 - Notre Dame Philosophical Review.
  34.  22
    On the Classical Limit of Quantum Mechanics.Valia Allori & Nino Zanghì - 2009 - Foundations of Physics 39 (1):20-32.
    Contrary to the widespread belief, the problem of the emergence of classical mechanics from quantum mechanics is still open. In spite of many results on the ¯h → 0 asymptotics, it is not yet clear how to explain within standard quantum mechanics the classical motion of macroscopic bodies. In this paper we shall analyze special cases of classical behavior in the framework of a precise formulation of quantum mechanics, Bohmian mechanics, which contains in its own structure the possibility of describing (...)
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  35.  14
    Beyond or Above? The Adynamical Explanation Meets Ontological Contextuality Without a Fundamental Level. Book Review of "Beyond the Dynamical Universe: Unifying Block Universe Physics and Time as Experienced" by M. Silberstein, W. M. Stuckey, and T. McDevitt. [REVIEW]Valia Allori - 2019 - Metascience 28 (2):341-344.
    Book Review of “Beyond the Dynamical Universe,” by Michael Silberstein, W.M. Stuckey and Timothy McDewitt.
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  36. Decoherence and the Classical Limit of Quantum Mechanics.Valia Allori - 2002 - Dissertation, University of Genova, Italy
    In my dissertation (Rutgers, 2007) I developed the proposal that one can establish that material quantum objects behave classically just in case there is a “local plane wave” regime, which naturally corresponds to the suppression of all quantum interference.
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  37.  2
    Some Reflections on the Statistical Postulate: Typicality, Probability and Explanation Between Deterministic and Indeterministic Theories.Valia Allori - forthcoming - In Statistical Mechanics and Scientific Explanation: Determinism, Indeterminism and Laws of Nature, (2020).
    A common way of characterizing Boltzmann’s explanation of thermodynamics in term of statistical mechanics is with reference to three ingredients: the dynamics, the past hypothesis, and the statistical postulate. In this paper I focus on the statistical postulate, and I have three aims. First, I wish to argue that regarding the statistical postulate as a probability postulate may be too strong: a postulate about typicality would be enough. Second, I wish to show that there is no need to postulate anything, (...)
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  38.  51
    Quantum Theory: A Philosopher’s Overview. [REVIEW]Valia Allori - 2010 - International Studies in the Philosophy of Science 24 (3):330-333.
    Book review of "Quantum Theory: a Philosopher's Overview".
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  39.  85
    Quantum Theory: A Philosopher’s Overview. [REVIEW]Valia Allori - 2010 - International Studies in the Philosophy of Science 24 (3):330-333.
    Book Review of "Quantum Mechanics- a Philosopher's Overview," by Salvator Cannavo.
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  40.  11
    Book Review of S. Gao "Protective Measurement and Quantum Reality". [REVIEW]Valia Allori - 2017 - British Journal for the Philosophy of Science:x-y.
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  41.  41
    Book Review of "The Kantian Legacy in Nineteenth-Century Science" by M. Friedman and A. Nordmann. [REVIEW]Valia Allori - 2009 - Journal of the History of Philosophy 47 (3):pp. 478-479.
    Book review of "The Kantian legacy in the Nineteenth -Century Science,'' M. Friedman, and A. Nordmann.
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  42.  13
    The Kantian Legacy in Nineteenth-Century Science (Review).Valia Allori - 2009 - Journal of the History of Philosophy 47 (3):478-479.
    The book originates from an international conference held in November 2000 at the Dibner Institute for the History of Science and Technology at MIT. The main conviction of the authors is that not only the development of modern mathematics, foundations of mathematics, and mathematical logic, but also the development of modern scientific thought can be better understood as an evolution from Kant. The main reason for focusing on the nineteenth century is that this will allow us to set aside the (...)
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  43.  4
    The Kantian Legacy in Nineteenth-Century Science : FriedmanMichael,, Ed.1947-Kantian Legacy in Nineteenth-Century Science. [REVIEW]Valia Allori - 2009 - Journal of the History of Philosophy 47 (3):478-479.
  44. Statistical Mechanics and Scientific Explanation: Determinism, Indeterminism and Laws of Nature.Valia Allori (ed.) - forthcoming - World Scientific.
    The book explores several open questions in the philosophy of statistical mechanics. Each chapter is written by a leading expert in the field. Here is a list of some questions that are addressed in the book: 1) Boltzmann showed how the phenomenological gas laws of thermodynamics can be derived from statistical mechanics. Since classical mechanics is a deterministic theory there are no probabilities in it. Since statistical mechanics is based on classical mechanics, all the probabilities statistical mechanics talks about cannot (...)
     
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