###### LETTER

The authors use a deep reinforcement learning framework to obtain optimal policies for maximizing the current in a collective flashing ratchet.

Dong-Kyum Kim and Hawoong Jeong

Phys. Rev. Research **3**, L022002 (2021)

###### NEW ARTICLE

The authors propose a definition of polarization density in insulators given by a topological response that relates polarization to monopole translations.

Xue-Yang Song, Yin-Chen He, Ashvin Vishwanath, and Chong Wang

Phys. Rev. Research **3**, 023011 (2021)

###### NEW ARTICLE

The authors develop a pipeline to train, test, and deploy tensor network-based machine learning models on noisy, intermediate-scale quantum hardware.

Michael L. Wall, Matthew R. Abernathy, and Gregory Quiroz

Phys. Rev. Research **3**, 023010 (2021)

###### NEW ARTICLE

The authors show how many-atom quantum carpets are woven, while their character changes from single- to many-body due to interatomic interactions.

Maciej Łebek, Piotr T. Grochowski, and Kazimierz Rzążewski

Phys. Rev. Research **3**, 023009 (2021)

###### NEW ARTICLE

The authors describe a method to analyze crystal field excitation spectra using adjustable effective point-charges and apply to two families of materials.

Zhiling Dun *et al.*

Phys. Rev. Research **3**, 023012 (2021)

###### NEW ARTICLE

The authors study how edge imperfections affect the number and tunability of Majorana corner modes appearing in two-dimensional second-order topological superconductors, i.e., in noncentrosymmetric superconductors with in-plane magnetic fields.

S. Ikegaya, W. B. Rui, D. Manske, and Andreas P. Schnyder

Phys. Rev. Research **3**, 023007 (2021)

###### NEW ARTICLE

The authors propose a rearranging-atom algorithm with near-fewest sorting-atom moves for large-scale atom assemblers and apply to the preparation of defect-free atom arrays in compact configurations experimentally.

Cheng Sheng *et al.*

Phys. Rev. Research **3**, 023008 (2021)

###### NEW ARTICLE

The authors investigate how the statistics of the expansion order in a quantum Monte Carlo simulation is affected by the presence of a quantum critical point and illustrate these effects on the impurity quantum phase transition in a superconducting quantum dot.

Vladislav Pokorný and Tomáš Novotný

Phys. Rev. Research **3**, 023013 (2021)

###### NEW ARTICLE

The authors introduce a noisy quantum simulator based on tensor networks to model the noise channels of the circuit.

Song Cheng *et al.*

Phys. Rev. Research **3**, 023005 (2021)

###### NEW ARTICLE

The paper uses a thermodynamically axiomatic approach to formulate the general form of the Markovian master equation.

Roie Dann and Ronnie Kosloff

Phys. Rev. Research **3**, 023006 (2021)

###### NEW ARTICLE

This work shows how gain and loss give rise to a non-trivial contribution to the Hall conductance of two-dimensional Chern insulators.

Solofo Groenendijk, Thomas L. Schmidt, and Tobias Meng

Phys. Rev. Research **3**, 023001 (2021)

###### NEW ARTICLE

The authors investigate the dynamics of an artificial atom coupled to a one-dimensional semi-infinite high-impedance transmission line.

E. Wiegand, B. Rousseaux, and G. Johansson

Phys. Rev. Research **3**, 023003 (2021)

###### LETTER

The authors report the emergence of antiresonance in a variation of the Stuart-Landau model, which alternates between two unstable modes but displays a stable response in a finite range of switching frequencies.

Maurizio Porfiri, Russell Jeter, and Igor Belykh

Phys. Rev. Research **3**, L022001 (2021)

###### NEW ARTICLE

The authors show the emergence of robust Majorana-like edge modes in the absence of long-range superconducting order, by solving a many-body quantum system without gauge symmetry breaking.

V. Vadimov *et al.*

Phys. Rev. Research **3**, 023002 (2021)

###### NEW ARTICLE

The authors show the disappearance of higher-order interference using single-photons emitted from two-dimensional hexagonal boron nitride.

Tobias Vogl *et al.*

Phys. Rev. Research **3**, 013296 (2021)

###### NEW ARTICLE

The authors determine the deformation of the beryllium-9 nucleus in terms of the quadrupole moment using from the hyperfine splitting of the atomic triplet 2P state.

Mariusz Puchalski, Jacek Komasa, and Krzysztof Pachucki

Phys. Rev. Research **3**, 013293 (2021)

###### NEW ARTICLE

The authors investigate the characteristics of EUV light emission from tin-microdroplet plasmas driven by 1 and 2 micron wavelength solid-state lasers.

R. Schupp *et al.*

Phys. Rev. Research **3**, 013294 (2021)

###### NEW ARTICLE

The authors study how an artificial electric field generated by electron-electron interaction or electron-phonon interaction modifies electrons’ hydrodynamic properties in an inversion-breaking system.

Omid Tavakol and Yong Baek Kim

Phys. Rev. Research **3**, 013290 (2021)

###### NEW ARTICLE

The authors explore the properties of noise-induced Fano coherences generated in a three-level quantum V-system continuously pumped by polarized incoherent light in the absence of coherent driving.

Suyesh Koyu, Amro Dodin, Paul Brumer, and Timur V. Tscherbul

Phys. Rev. Research **3**, 013295 (2021)

###### NEW ARTICLE

This article describes a general approach to controlling the distance between a pair of trapped molecules down to about a hundred nanometers, by using bichromatic optical tweezer traps and the tensor Stark shift.

L. Caldwell and M. R. Tarbutt

Phys. Rev. Research **3**, 013291 (2021)

###### NEW ARTICLE

The authors provide a method that estimates the noise on a quantum device from the information obtained during error correction.

Thomas Wagner, Hermann Kampermann, Dagmar Bruß, and Martin Kliesch

Phys. Rev. Research **3**, 013292 (2021)

###### NEW ARTICLE

The authors show that Josephson tunnel junctions are universal quantum electrical circuit elements interrelating voltage, current, and resistance by fundamental constants.

L. Peyruchat, J. Griesmar, J.-D. Pillet, and Ç. Ö. Girit

Phys. Rev. Research **3**, 013289 (2021)

###### NEW ARTICLE

The authors propose to simulate topological band structures with in-situ tunable Josephson tunnel junction quantum circuits.

Valla Fatemi, Anton R. Akhmerov, and Landry Bretheau

Phys. Rev. Research **3**, 013288 (2021)

###### NEW ARTICLE

The authors study electron-electron scattering in an electronic cavity on a local scale and observe conductance modulations behind a quantum point contact.

Carolin Gold *et al.*

Phys. Rev. Research **3**, 013287 (2021)

###### NEW ARTICLE

The authors report the quasiadiabatic ground-state preparation of an Ising-type Hamiltonian on Cayley-tree geometries of Rydberg atoms in three-dimensional arrangements of optical tweezers.

Yunheung Song *et al.*

Phys. Rev. Research **3**, 013286 (2021)

###### NEW ARTICLE

The authors develop a method to numerically find the external force that generates the desired dynamics in a many-body inertial system.

Johannes Renner, Matthias Schmidt, and Daniel de las Heras

Phys. Rev. Research **3**, 013281 (2021)

###### NEW ARTICLE

This paper develops a theory for spin-1 Dirac-Weyl particles and unveils an analogy between localized surface plasmon and Klein tunneling resonances.

Hong-Ya Xu, Liang Huang, and Ying-Cheng Lai

Phys. Rev. Research **3**, 013284 (2021)

###### NEW ARTICLE

The authors derive the universal one-matrix functional for Bose-Einstein condensates and show the existence of a Bose-Einstein force which identifies quantum depletion as a direct consequence of the geometry of density matrices.

Julia Liebert and Christian Schilling

Phys. Rev. Research **3**, 013282 (2021)

###### NEW ARTICLE

The authors analyze the multiscale dynamics during the flocking transition in-silico and show that local particle clusters of different sizes and orders are important for the formation of polar order.

Lorenz Huber, Timo Krüger, and Erwin Frey

Phys. Rev. Research **3**, 013280 (2021)