Weekly Papers on Quantum Foundations (38)

On possible explanations for quantum contextuality. (arXiv:2109.07636v1 [quant-ph]) 上午9:32 | Alisson Tezzin | quant-ph updates on arXiv.org Recent research on quantum contextuality has been strongly centered on device-independent frameworks, such as the many graph approaches to contextuality and the celebrated sheaf-theoretical approach. Contextuality is described in these frameworks as a property of data only, making it possible to characterize and… Read more →

Weekly Papers on Quantum Foundations (37)

Parity-Time Symmetry via Time-Dependent non-Unitary Gauge Fields. (arXiv:2109.03846v1 [physics.class-ph]) 上午9:54 | Mario A. Quiroz-Juárez, Zachary A. Cochran, José L. Aragón, Yogesh N. Joglekar, Roberto de J. León-Montiel | quant-ph updates on arXiv.org Parity-Time (PT) symmetric systems have been widely recognized as fundamental building blocks for the development of novel, ultra-sensitive opto-electronic devices. However, arguably one of their major drawbacks is… Read more →

Weekly Papers on Quantum Foundations (36)

Gravitational redshift induces quantum interference. (arXiv:2109.00728v1 [quant-ph]) 上午10:13 | David Edward Bruschi, Andreas W. Schell | quant-ph updates on arXiv.org We use quantum field theory in curved spacetime to show that gravitational redshift induces a unitary transformation on the quantum state of propagating photons. This occurs for realistic photons characterized by a finite bandwidth, while ideal photons with sharp frequencies… Read more →

Weekly Papers on Quantum Foundations (35)

A historical review and Bibliometric analysis of research on Weak measurement research over the past decades based on Biblioshiny. (arXiv:2108.11375v1 [cs.DL]) 上午9:55 | Jing-Hui Huang, Xue-Ying Duan, Fei-Fan He, Guang-Jun Wang, Xiang-Yun Hu | quant-ph updates on arXiv.org Weak measurement has enabled fundamental studies in both experiment and theory of quantum measurement. Numerous researches have indicated that weak measurements have… Read more →

Weekly Papers on Quantum Foundations (34)

Conserved Quantities and Measurements. (arXiv:2108.08342v1 [quant-ph]) 2021年8月20日 星期五 下午3:42 | Edward J. Gillis | quant-ph updates on arXiv.org When a measurement is made on a system that is not in an eigenstate of the measured observable, it is often assumed that some conservation law has been violated. Discussions of the effect of measurements on conserved quantities often overlook the possibility… Read more →

Weekly Papers on Quantum Foundations (33)

Determination of finite dimensional pure quantum state by the discrete analogues of position and momentum. (arXiv:2108.05752v1 [quant-ph]) 上午9:21 | Yu Wang | quant-ph updates on arXiv.org The position and momentum distributions play an important role in the determination of classical and quantum states, which reveals a fundamental gap between classical and quantum world. For finite dimensional quantum system, a particle… Read more →

Weekly Papers on Quantum Foundations (32)

Quantum logical entropy: fundamentals and general properties. (arXiv:2108.02726v1 [quant-ph]) 上午10:04 | Boaz Tamir, Ismael L. Paiva, Zohar Schwartzman-Nowik, Eliahu Cohen | quant-ph updates on arXiv.org Logical entropy gives a measure, in the sense of measure theory, of the distinctions of a given partition of a set, an idea that can be naturally generalized to classical probability distributions. Here, we analyze… Read more →

Weekly Papers on Quantum Foundations (31)

A preference for Dynamical Dark Energy?. (arXiv:2107.14129v1 [astro-ph.CO]) 上午9:55 | gr-qc updates on arXiv.org Authors: David Benisty, Denitsa Staicova Dynamical Dark Energy (DDE) is a possible solution to the Hubble tension. This work analyses the combination of Baryon Acoustic Oscillation (BAO) data that include $19$ points from the range $0.11 \le z \le 2.40$ and additional points from the Cosmic Microwave Background… Read more →

Weekly Papers on Quantum Foundations (30)

The Real Meaning of Quantum Mechanics. (arXiv:2107.10666v1 [quant-ph]) 上午10:54 | Francois-Igor Pris | quant-ph updates on arXiv.org We suggest a contextual realist interpretation of relational quantum mechanics. The principal point is a correct understanding of the concept of reality and taking into account the categorical distinction between the ideal and the real. Within our interpretation, consciousness of the observer does… Read more →

Weekly Papers on Quantum Foundations (29)

The Relativity Principle at the Foundation of Quantum Mechanics. (arXiv:2107.06942v1 [quant-ph]) 下午5:48 | W.M. Stuckey, Timothy McDevitt, Michael Silberstein | quant-ph updates on arXiv.org Quantum information theorists have created axiomatic reconstructions of quantum mechanics (QM) that are very successful at identifying precisely what distinguishes quantum probability theory from classical and more general probability theories in terms of information-theoretic principles. Herein,… Read more →

Weekly Papers on Quantum Foundations (28)

Is the problem of molecular structure just the quantum measurement problem? Foundations of Chemistry (2021) Sebastian Fortin & Olimpia Lombardi Abstract In a recent article entitled “The problem of molecular structure just is the measurement problem”, Alexander Franklin and Vanessa Seifert argue that insofar as the quantum measurement problem is solved, the problems of molecular structure are resolved as well…. Read more →