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Weekly Papers on Quantum Foundations (16)

H-theorem and Maxwell Demon in Quantum Physics. (arXiv:1804.06886v1 [quant-ph])  quant-ph updates on arXiv.org on 2018-4-21 2:11am GMT Authors: N.S. Kirsanov, A.V. Lebedev, I.A. Sadovskyy, M.V. Suslov, V.M. Vinokur, G. Blatter, G.B. Lesovik The Second Law of Thermodynamics states that temporal evolution of an isolated system occurs with non-diminishing entropy. In quantum realm, this holds for energy-isolated systems the evolution of which is described by the so-called unital… Read more →

Weekly Papers on Quantum Foundations (15)

Infinte Idealization and Contextual Realism  Philsci-Archive: No conditions. Results ordered -Date Deposited. on 2018-4-13 8:48pm GMT Liu, Chuang (2018) Infinte Idealization and Contextual Realism. Synthese. ISSN 1573-0964 The big fudge: Welcome to the theory of not-quite-everything  New Scientist – Home on 2018-4-13 12:00pm GMT Physicists from Einstein to Hawking tried and failed to unite gravity and quantum theory. Now we… Read more →

Weekly Papers on Quantum Foundations (14)

A Finite Theory of Qubit Physics. (arXiv:1804.01734v1 [quant-ph])  quant-ph updates on arXiv.org on 2018-4-07 1:45am GMT Authors: T.N.Palmer Hardy’s axiomatic approach to the quantum theory of discrete Hilbert Spaces reveals that just one principle distinguishes it from classical probability theory: there should be continuous (and hence infinitesimal) reversible transformations between any pair of pure states – the single word `continuous’ giving… Read more →

Weekly Papers on Quantum Foundations (13)

Decoherence and Determinism in a One-Dimensional Cloud-Chamber Model  Latest Results for Foundations of Physics on 2018-4-01 12:00am GMT Abstract The hypothesis (Sparenberg et al. in EPJ Web Conf 58:01016, [1]. http://dx.doi.org/10.1051/epjconf/20135801016) that the particular linear tracks appearing in the measurement of a spherically-emitting radioactive source in a cloud chamber are determined by the (random) positions of atoms or molecules inside the… Read more →

The Meaning of the Wave Function: In Search of the Ontology of Quantum Mechanics

Reviewed by Peter J. Lewis, Dartmouth College Shan Gao (2017), The Meaning of the Wave Function: In Search of the Ontology of Quantum Mechanics. Cambridge: Cambridge University Press. Shan Gao has written an exemplary book on the nature of the wave function—its theoretical role, the ontology it represents, and how understanding this ontology can contribute to solving the measurement problem…. Read more →

Weekly Papers on Quantum Foundations (12)

Taking Heisenberg’s Potentia Seriously. (arXiv:1709.03595v5 [quant-ph] UPDATED)  quant-ph updates on arXiv.org on 2018-3-23 12:59am GMT Authors: R. E. Kastner, Stuart Kauffman, Michael Epperson It is argued that quantum theory is best understood as requiring an ontological duality of res extensa and res potentia, where the latter is understood per Heisenberg’s original proposal, and the former is roughly equivalent to Descartes’ ‘extended substance.’ However,… Read more →

Beyond the Dynamical Universe: Unifying Block Universe Physics and Time as Experienced

Theoretical physics and foundations of physics have not made much progress in the last few decades. Whether we are talking about unifying general relativity and quantum field theory (quantum gravity), explaining so-called dark energy and dark matter (cosmology), or the interpretation and implications of quantum mechanics and relativity, there is no consensus in sight. In addition, both enterprises are deeply… Read more →

Weekly Papers on Quantum Foundations (11)

Quantum Field Theory With No Zero-Point Energy. (arXiv:1803.05823v1 [hep-th])  hep-th updates on arXiv.org on 2018-3-17 4:45am GMT Authors: John R. Klauder Traditional quantum field theory can lead to enormous zero-point energy, which markedly disagrees with experiment. Unfortunately, this situation is built into conventional canonical quantization procedures. For identical classical theories, an alternative quantization procedure, called affine field quantization, leads to the… Read more →

Weekly Papers on Quantum Foundations (10)

On the Nature of Discrete Space-Time: The distance formula, relativistic time dilation and length contraction in discrete space-time. (arXiv:1803.03126v1 [physics.gen-ph])  gr-qc updates on arXiv.org on 2018-3-10 1:42am GMT Authors: David Crouse, Joseph Skufca In this work, the relativistic phenomena of Lorentz-Fitzgerald contraction and time dilation are derived using a modified distance formula that is appropriate for discrete space. This new distance formula… Read more →

Weekly Papers on Quantum Foundations (9)

Emergent gravity from relatively local Hamiltonians and a possible resolution of the black hole information puzzle. (arXiv:1803.00556v1 [hep-th])  hep-th updates on arXiv.org on 2018-3-02 1:31pm GMT Authors: Sung-Sik Lee In this paper, we study a possibility where gravity and time emerge from quantum matter. Within the Hilbert space of matter fields defined on a spatial manifold, we consider a sub-Hilbert space… Read more →