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Weekly Papers on Quantum Foundations (40)

Non-Abelian symmetry can increase entanglement entropy. (arXiv:2209.14303v1 [quant-ph])   from  quant-ph updates on arXiv.org  by  Shayan Majidy, Aleksander Lasek, David A. Huse, Nicole Yunger Halpern Fri Sep 30 2022 08:52:12 (9 minutes) # 1. The pillars of quantum theory include entanglement and operators’ failure to commute. The Page curve quantifies the bipartite entanglement of a many-body system in a random… Read more →

Weekly Papers on Quantum Foundations (39)

Highlighting relations between Wave-particle duality, Uncertainty principle, Phase space and Microstates. (arXiv:2205.08538v2 [quant-ph] UPDATED)   from  physics.hist-ph updates on arXiv.org  by  Ravo Tokiniaina Ranaivoson, Voriraza Séraphin Hejesoa, Raoelina Andriambololona, Nirina Gilbert Rasolofoson, Hanitriarivo Rakotoson, Jacqueline Rabesahala Raoelina Andriambololona, Lala Rarivomanantsoa, Naivo Rabesiranana Fri Sep 23 2022 08:50:01 (1 day) # 1. The wave-particle duality is often considered as the modern… Read more →

Weekly Papers on Quantum Foundations (38)

How to measure effect sizes for rational decision-making   from  PhilSci-Archive: No conditions. Results ordered -Date Deposited. Fri Sep 16 2022 11:06:39 (22 hours) # 1. Jäntgen, Ina (2022) How to measure effect sizes for rational decision-making. In: UNSPECIFIED.   Send To > Keep unreadDelete Towards a scientifically tenable description of objective idealism. (arXiv:2208.12036v2 [physics.hist-ph] UPDATED)   from  physics.hist-ph updates on arXiv.org… Read more →

Weekly Papers on Quantum Foundations (36-37)

The paradox of infinitesimal granularity: Chaos and the reversibility of time in Newton’s theory of gravity. (arXiv:2209.03347v1 [nlin.CD])   from  gr-qc updates on arXiv.org  by  Simon Portegies Zwart, Tjarda Boekholt Sat Sep 10 2022 09:48:11 (1 hour) # 1. The fundamental laws of physics are time-symmetric, but our macroscopic experience contradicts this. The time reversibility paradox is partly a consequence… Read more →

Weekly Papers on Quantum Foundations (36-37)

The paradox of infinitesimal granularity: Chaos and the reversibility of time in Newton’s theory of gravity. (arXiv:2209.03347v1 [nlin.CD])   from  gr-qc updates on arXiv.org  by  Simon Portegies Zwart, Tjarda Boekholt Sat Sep 10 2022 09:48:11 (1 hour) # 1. The fundamental laws of physics are time-symmetric, but our macroscopic experience contradicts this. The time reversibility paradox is partly a consequence… Read more →

Weekly Papers on Quantum Foundations (35)

A healthier semi-classical dynamics. (arXiv:2208.11722v1 [quant-ph]) 上午10:02 | Isaac Layton, Jonathan Oppenheim, Zachary Weller-Davies | quant-ph updates on arXiv.org We study the back-reaction of quantum systems onto classical ones. Taking the starting point that semi-classical physics should be described at all times by a point in classical phase space and a quantum state in Hilbert space, we consider an unravelling… Read more →

Weekly Papers on Quantum Foundations (34)

Russell on Weyl’s unified field theory. (arXiv:2208.08495v1 [physics.hist-ph]) 上午10:36 | physics.hist-ph updates on arXiv.org Authors: C. Romero In 1918, H. Weyl proposed a unified theory of gravity and electromagnetism based on a generalization of Riemannian geometry. With hindsight we now could say that the theory carried with it some of the most original ideas that inspired the physics of the twentieth… Read more →

Weekly Papers on Quantum Foundations (33)

What Represents Space-time? And What Follows for Substantivalism \emph{vs.} Relationalism and Gravitational Energy?. (arXiv:2208.05946v1 [physics.hist-ph]) 上午9:40 | physics.hist-ph updates on arXiv.org Authors: J. Brian Pitts The questions of what represents space-time in GR, the status of gravitational energy, the substantivalist-relationalist issue, and the (non)exceptional status of gravity are interrelated. If space-time has energy-momentum, then space-time is substantival. Two extant ways to… Read more →

Weekly Papers on Quantum Foundations (32)

Fundamental Limitation on the Detectability of Entanglement. (arXiv:2208.02518v1 [quant-ph]) 上午10:42 | Pengyu Liu, Zhenhuan Liu, Shu Chen, Xiongfeng Ma | quant-ph updates on arXiv.org Entanglement detection is essential in quantum information science and quantum many-body physics. It has been proved that entanglement exists almost surely for a random quantum state, while the realizations of effective entanglement criteria usually consume exponential… Read more →

Weekly Papers on Quantum Foundations (31)

Time-energy uncertainty relation for noisy quantum metrology. (arXiv:2207.13707v1 [quant-ph]) 上午9:19 | Philippe Faist, Mischa P. Woods, Victor V. Albert, Joseph M. Renes, Jens Eisert, John Preskill | quant-ph updates on arXiv.org Detection of weak forces and precise measurement of time are two of the many applications of quantum metrology to science and technology. We consider a quantum system initialized in… Read more →

Weekly Papers on Quantum Foundations (30)

How to Explain the Direction of Time 上午10:34 | Philsci-Archive: No conditions. Results ordered -Date Deposited. Fernandes, Alison (2022) How to Explain the Direction of Time. [Preprint] Homodyne measurement with a Schr\”odinger cat state as a local oscillator. (arXiv:2207.10210v1 [quant-ph]) 上午8:55 | Joshua Combes, Austin P. Lund | quant-ph updates on arXiv.org Homodyne measurements are a widely used quantum measurement…. Read more →