Physical Review A - June 2023

Physical Review A covering atomic, molecular, and optical physics and quantum information View Email Online   Volume 107, Issue 6 June 2023   View Issue   Advertisement Physical Review A achieves a 2.9 Journal Impact Factor Score According to the 2022 Journal Citation Reports (Clarivate Analytics, 2022), Physical Review A (PRA) achieved a 2.9 Journal Impact Factor Score.     Not an APS member? Join today to start connecting with a community of more than 50,000 physicists.   Highlights Editors' Suggestion Asymmetry and tighter uncertainty relations for Rényi entropies via quantum-classical decompositions of resource measures Michael J. W. Hall Phys. Rev. A 107, 062215 (2023) – Published 27 June 2023 The author proposes a general method of constructing quantum–classical decompositions of resources such as uncertainty, with the quantum contribution specified by a measure of the noncommutativity of a given set of operators relative to the quantum state, and the classical contribution generated by the mixedness of the state. One result of this formalism is that entropic uncertainty relations, computed by employing the entropy instead of the variance as a measure of uncertainty about a measurement outcome, are stronger than previously known.     Editors' Suggestion Fundamental limits of pulsed quantum light spectroscopy: Dipole moment estimation Francesco Albarelli, Evangelia Bisketzi, Aiman Khan, and Animesh Datta Phys. Rev. A 107, 062601 (2023) – Published 1 June 2023 In order to rigorously find the limit of estimation precision for an atom probed by a quantum light pulse, the authors incorporate tools from quantum metrology and atomic spectroscopy. Their methodology uses a Hamiltonian model of the light-matter interaction to compute the information in the quantum state of the light after interaction with the atom.     Editors' Suggestion Elastic scattering and rotational excitation of H2 by electron impact: Convergent close-coupling calculations Liam H. Scarlett, Una S. Rehill, Mark C. Zammit, Nicolas A. Mori, Igor Bray, and Dmitry V. Fursa Phys. Rev. A 107, 062804 (2023) – Published 2 June 2023 The authors report benchmark results for the rotational excitation of the hydrogen molecule at energies up to 20 eV obtained with the adiabatic-nuclei molecular convergent close-coupling method. The results are compared to available measurements and previous calculations. They contribute to the understanding of low-energy collision physics in a full quantum mechanical treatment.     Editors' Suggestion Direct measurement of high-lying vibrational repumping transitions for molecular laser cooling Nickolas H. Pilgram, Arian Jadbabaie, Chandler J. Conn, and Nicholas R. Hutzler Phys. Rev. A 107, 062805 (2023) – Published 2 June 2023 The authors demonstrate a method for high-resolution spectroscopy of excited vibrational states of molecules without the need for optical cycling, and apply it to measure the A(100) - X(300) band in YbOH. The method, whose sensitivity could be further improved, should have broad utility for molecular laser cooling, and applications that make use of excited vibrational states such as searches for fundamental symmetry violations, searches for ultralight dark matter, etc.     Editors' Suggestion Spin-motion coupling in a circular-Rydberg-state quantum simulator: Case of two atoms Paul Méhaignerie, Clément Sayrin, Jean-Michel Raimond, Michel Brune, and Guillaume Roux Phys. Rev. A 107, 063106 (2023) – Published 9 June 2023 The authors study the interplay between the spin exchange and motional dynamics in the case of two interacting circular Rydberg atoms confined in harmonic traps. The results unveil new physics emerging from the long time scale in the proposal of an XXZ spin-array simulator based on chains of trapped circular atoms.     Editors' Suggestion Dispersion tuning of nonlinear optical pulse dynamics in gas-filled hollow capillary fibers Teodora Grigorova, Christian Brahms, Federico Belli, and John C. Travers Phys. Rev. A 107, 063512 (2023) – Published 20 June 2023 Gas-filled hollow capillary fibers can be used for continuum generation and pulse compression. Here, the authors change the gas pressure inside hollow capillary fibers and investigate how ultrashort laser pulses propagating through the fibers respond to these changes. The use of short pulses and a long capillary fiber enables the authors to survey a much wider range of dynamics than previously observed.     Editors' Suggestion General framework for two-photon spontaneous emission near plasmonic nanostructures S. Smeets, B. Maes, and G. Rosolen Phys. Rev. A 107, 063516 (2023) – Published 27 June 2023 The authors develop a framework for efficient calculation of two-photon spontaneous emission in arbitrary nanostructures using one-photon Purcell factors. The formalism will aid the design of entangled two-photon sources for various applications, including quantum technologies and spectroscopy.     Editors' Suggestion Letter Rapidity and momentum distributions of one-dimensional dipolar quantum gases Kuan-Yu Li, Yicheng Zhang, Kangning Yang, Kuan-Yu Lin, Sarang Gopalakrishnan, Marcos Rigol, and Benjamin L. Lev Phys. Rev. A 107, L061302 (2023) – Published 8 June 2023 The effects of integrability-breaking interactions on equilibrium states are explored using a one-dimensional Bose gas of highly magnetic atoms. A dressed-quasiparticle description is found to be necessary to predict equilibrium rapidity and momentum distributions as the strength of the integrability-breaking perturbation increases.       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.