Physical Review A - December 2022

Physical Review A covering atomic, molecular, and optical physics and quantum information View Email Online   Volume 106, Issue 6 December 2022   View Issue   Advertisement Sign up for PRX Life alerts PRX Life, APS' newest highly-selective Open Access journal focusing on all aspects of biological organization, has big plans for 2023. Sign up for email alerts to see what the journal is building prior to opening for submissions later this year. Sign up for alerts »     Advertisement Researchers discuss an approach to determine the diffusion length of excitons in in organic semiconductors without any temporal measurements live Drew Riley, Swansea University sits down with the Physical Review Journal Club January 25 at 9:00 a.m. E.T. to discuss the Physical Review Applied paper "Quasi-Steady-State Measurement of Exciton Diffusion Lengths in Organic Semiconductors" Registration is free and a video recording will be provided to all registrants »     Advertisement Attend March Meeting 2023 Early bird registration is officially open for March Meeting 2023–one of the largest and most exciting conferences in physics! Witness groundbreaking physics research, network with potential employers, and prepare for career success at March Meeting 2023. Register today »     Not an APS member? Join today to start connecting with a community of more than 50,000 physicists.   Highlights Editors' Suggestion Coincidence postselection for genuine multipartite nonlocality: Causal diagrams and threshold efficiencies Valentin Gebhart and Augusto Smerzi Phys. Rev. A 106, 062202 (2022) – Published 2 December 2022 In a crucial step for securing many existing quantum technologies, the authors use causal diagrams to close the detection loophole in multipartite nonlocality demonstrations. Their results also imply that genuine N-partite nonlocality can be created from N independent photon sources.     Editors' Suggestion Retrieving information from a black hole using quantum machine learning Lorenzo Leone, Salvatore F. E. Oliviero, Stefano Piemontese, Sarah True, and Alioscia Hamma Phys. Rev. A 106, 062434 (2022) – Published 26 December 2022 Information can be retrieved from a black hole that is sufficiently scrambling, assuming that the retriever has perfect control of the emitted Hawking radiation and perfect knowledge of the internal dynamics of the black hole. In this paper, the authors show that for black holes modeled by a certain class of random quantum circuits, information can be retrieved by using quantum machine learning to analyze out-of-time-order correlation functions.     Editors' Suggestion Quantum speed limit of a noisy continuous-variable system Wei Wu and Jun-Hong An Phys. Rev. A 106, 062438 (2022) – Published 27 December 2022 The quantum speed limit quantifies the minimum time it takes for a system to evolve under the constraint of quantum mechanics. Here, the authors investigate the quantum speed limit in a continuous-variable system undergoing non-Markovian noise. Their results imply that this limit may be steerable with the use of spectral engineering.     Editors' Suggestion Letter Echo-enhanced molecular orientation at high temperatures Ilia Tutunnikov, Long Xu, Yehiam Prior, and Ilya Sh. Averbukh Phys. Rev. A 106, L061101 (2022) – Published 8 December 2022 Efficient molecular orientation at high temperatures is induced by a terahertz pulse with the help of an intense nonresonant laser prepulse that dissects rotational phase space to narrow filaments. The authors use the echo effect to synchronize the terahertz response of all the filaments, leading to much enhanced orientation compared to other techniques.       American Physical Society: 1 Physics Ellipse, College Park, MD 20740 ©2023 American Physical Society | All rights reserved   You are receiving this email because you are subscribed to Table of Content alerts. If you no longer wish to receive these emails, please update your preferences.