Characterizing quantum instruments: from non-demolition measurements to quantum error correction. (arXiv:2110.06954v1 [quant-ph]) 2021年10月16日 星期六 上午11:02 | Roman Stricker, Davide Vodola, Alexander Erhard, Lukas Postler, Michael Meth, Martin Ringbauer, Philipp Schindler, Rainer Blatt, Markus Müller, Thomas Monz | quant-ph updates on arXiv.org In quantum information processing quantum operations are often processed alongside measurements which result in classical data. Due to the… Read more →

Gravity-related collapse of the wave function and spontaneous heating: revisiting the experimental bounds. (arXiv:2109.14980v1 [quant-ph]) 上午9:47 | Andrea Vinante, Hendrik Ulbricht | quant-ph updates on arXiv.org The possibility that the collapse of the wave function in quantum mechanics is a real and ultimately connected to (classical) gravity has been debated for decades, with main contributions by Di\’osi and Penrose. In… Read more →

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 →

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 →

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 →

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 →