Weekly Papers on Quantum Foundations (30)

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How to switch between relational quantum clocks. (arXiv:1810.04153v2 [gr-qc] UPDATED) 上午9:37 | gr-qc updates on arXiv.org Authors: Philipp A Hoehn, Augustin Vanrietvelde Every clock is a physical system and thereby ultimately quantum. A naturally arising question is how to describe time evolution relative to quantum clocks and, specifically, how the dynamics relative to different quantum clocks are related. This is a pressing… Read more →

Weekly Papers on Quantum Foundations (29)

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The Connection between Bohmian Mechanics and Many-Particle Quantum Hydrodynamics 上午8:00 | Latest Results for Foundations of Physics Abstract Bohm developed the Bohmian mechanics (BM), in which the Schrödinger equation is transformed into two differential equations: a continuity equation and an equation of motion similar to the Newtonian equation of motion. This transformation can be executed both for single-particle systems and… Read more →

Weekly Papers on Quantum Foundations (28)

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Observations of coherence de Broglie waves. (arXiv:2007.04738v1 [quant-ph]) 上午10:12 | Byoung S. Ham | quant-ph updates on arXiv.org Photonic de Broglie waves (PBWs) via two-mode entangled photon pair interactions on a beam splitter show a pure quantum feature which cannot be obtained by classical means1-4. Although PBWs have been intensively studied for quantum metrology5-13 and quantum sensing14-25 over the last… Read more →

Weekly Papers on Quantum Foundations (27)

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The appearance of particle tracks in detectors. (arXiv:2007.00785v1 [math-ph]) 上午9:14 | Miguel Ballesteros, Tristan Benoist, Martin Fraas, Jürg Fröhlich | quant-ph updates on arXiv.org The phenomenon that a quantum particle propagating in a detector, such as a Wilson cloud chamber, leaves a track close to a classical trajectory is analyzed. We introduce an idealized quantum-mechanical model of a charged particle… Read more →

Weekly Papers on Quantum Foundations (26)

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Born’s rule from almost nothing. (arXiv:2006.14175v1 [quant-ph]) 上午10:14 | Sabine Hossenfelder | quant-ph updates on arXiv.org We here put forward a simple argument for Born’s rule based on the requirement that the probability distribution should not be a function of the number of degrees of freedom. How small an environment can be to still generate decoherence?. (arXiv:2006.14468v1 [quant-ph]) 上午10:14 |… Read more →

Weekly Papers on Quantum Foundations (25)

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The CHSH Test Can be Used for All Quantum-Describable Systems 上午8:00 | Latest Results for Foundations of Physics Abstract This paper shows that the Clauser–Horne–Shimony–Holt test of locality of correlations which was originally designed to be used with binary observables can actually be used for any couples of quantum-like bounded continuous observables, and then for any experimental situation describable within… Read more →

Weekly Papers on Quantum Foundations (24)

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Observing the fate of the false vacuum with a quantum laboratory. (arXiv:2006.06003v1 [hep-th]) 上午9:31 | Steven Abel, Michael Spannowsky | quant-ph updates on arXiv.org We design and implement a quantum laboratory to experimentally observe and study dynamical processes of quantum field theories. Our approach encodes the field theory as an Ising model, which is then solved by a quantum annealer…. Read more →