Transient response of a gain-driven polariton Y.S. Gui and C.-M. Hu Phys. Rev. Applied 21, 044023 (2024) – Published 12 April 2024 The development of gain-driven polaritons offers a fresh approach to enhancing solid-state microwave sources and amplifiers, apart from the traditional concept of the maser. Despite their potential, these polaritons are governed by intricate dynamics that remain largely unexplored, impeding practical applications. The authors employ time-domain measurements to investigate the transient response of gain-driven polaritons, revealing distinct dynamical behaviors: damping, zero damping, and antidamping. This insight could impact the engineering of ultrafast polaritonic devices tailored for coherent microwave and optical applications. Show Abstract Magnetism Optoelectronics Spintronics PDFHTML Editors' Suggestion Broad-wave-vector spin pumping of flat-band magnons Jinlong Wang, Hanchen Wang, Jilei Chen, William Legrand, Peng Chen, Lutong Sheng, Jihao Xia, Guibin Lan, Yuelin Zhang, Rundong Yuan, Jing Dong, Xiufeng Han, Jean-Philippe Ansermet, and Haiming Yu Phys. Rev. Applied 21, 044024 (2024) – Published 12 April 2024 Spin pumping can generate spin current by driving a magnetic system into resonance, a phenomenon that can be electrically detected via the inverse spin Hall effect. However, the efficiency of spin current generation has remained limited, compared to that of spin-to-charge conversion. This work systematically demonstrates an innovative technique for electrically probing propagating spin waves and creating spin current with high efficiency, mediated by flat-band magnons excited by broad wave vectors. These findings lay a promising foundation for further experiments with propagating spin waves. Show Abstract Magnetism Optoelectronics Spintronics PDFHTML Editors' Suggestion Coherent control of photomagnetic back-switching by double-pump laser pulses T. Zalewski, L. Nowak, and A. Stupakiewicz Phys. Rev. Applied 21, 044026 (2024) – Published 15 April 2024 The ultrafast all-optical control of magnetization without relying on heat is promising for magnetic recording technology. While the magnetization switching between two stable bit states does not require control over light polarization, photomagnetic toggling of magnetization (equivalent to the XOR logic operation) can be achieved. This study probes the efficiency of a back-switching scenario between two stable bit states, using a pair of femtosecond laser pulses with either the same or orthogonal orientations of linear polarization. Such a nonthermal toggle regime not only can provide recording at rates up to 50 GHz, but also can perform basic logic operations. Show Abstract Magnetism Optoelectronics Spintronics PDFHTML Editors' Suggestion Microwave-free wide-field magnetometry using nitrogen-vacancy centers Joseph Shaji Rebeirro, Muhib Omar, Till Lenz, Omkar Dhungel, Peter Blümler, Dmitry Budker, and Arne Wickenbrock Phys. Rev. Applied 21, 044039 (2024) – Published 22 April 2024 Microwave-free magnetometry with N- V centers has emerged as a complementary method to traditional techniques when the use of microwaves is impractical, particularly in applications involving metals and biological samples. Integration of this method with imaging capabilities offers the potential for nondestructive probing in a 2D spatial plane, while also capturing temporal dynamics within existing technological constraints. It is evident that the limits of sensitivity have not been fully realized, and improvements may be achieved via faster specialized cameras and advanced color-center fabrication. Show Abstract Magnetism Optics Quantum Physics PDFHTML Editors' Suggestion Combinatorial optimization using the Lagrange primal-dual dynamics of parametric oscillator networks Sri Krishna Vadlamani, Tianyao Patrick Xiao, and Eli Yablonovitch Phys. Rev. Applied 21, 044042 (2024) – Published 23 April 2024 Machines based on coupled bistable oscillators can rapidly produce high-quality solutions to difficult problems in combinatorial optimization. While the dynamics of such systems can be derived, exactly why these dynamics are so good for optimization is unclear. This study presents a complete mathematical equivalence between coupled-oscillator machines and the primal-dual method of Lagrange multipliers, elucidating the precise mathematical role of each hardware component and enabling the principled design of more sophisticated optimization machines. Simulations show that such a circuit consumes extremely low amounts of power and energy per optimization, even for many variables. Show Abstract Complex Systems Computational Physics Nonlinear Dynamics PDFHTML PERSPECTIVES Perspective Post-quantum cryptography and the quantum future of cybersecurity Yi-Kai Liu and Dustin Moody Phys. Rev. Applied 21, 040501 (2024) – Published 9 April 2024 While public key cryptography enables the Internet to carry secure communications for billions of people every day, this critical technology is not infallible. It is well known that the Internet needs to transition to new “post-quantum” cryptosystems, to protect against the possibility of future cryptanalysis using quantum computers. This Perspective suggests that there is a broader scope for using quantum technologies to enhance cybersecurity, including fundamentally different approaches to constructing hardware security modules, to protect the secret keys that are the linchpin of cryptography on the Internet. Show Abstract Quantum Information PDFHTML Perspective Reflective moiré metasurface: Challenges and opportunities Shuo Liu and Tie Jun Cui Phys. Rev. Applied 21, 040502 (2024) – Published 16 April 2024 Dynamic beamforming is critical in applications such as radar detection, holographic imaging, and reconfigurable intelligent surfaces (RIS). This Perspective reviews a revolutionary and economical technique to achieve dynamic beamforming, utilizing the moiré pattern formed by twisted stacked metasurfaces. Research here faces challenges such as far-field calculations and the inverse design of specific radiation patterns, due to our limited understanding of the complex mode coupling between the moiré pattern and the metallic back plate. The authors outline potential solutions and project the future applications and research directions for the reflective moiré metasurface. Show Abstract Graphene Metamaterials Photonics PDFHTML Perspective Nanoscale magnonic networks Qi Wang, Gyorgy Csaba, Roman Verba, Andrii V. Chumak, and Philipp Pirro Phys. Rev. Applied 21, 040503 (2024) – Published 24 April 2024 Spin waves and their quanta magnons are the collective excitations of a spin systems of a magnetic material, which offer the potential for higher efficiency and lower energy consumption in solving specific issues in data processing. This Perspective discusses the current challenges in realizing magnonic circuits based on the building blocks developed to date, and further looks at the application of magnons in neuromorphic networks and stochastic, reservoir, and quantum computing, and discusses their advantages over conventional electronics in these areas. Show Abstract Magnetism Nanophysics Spintronics PDFHTML LETTERS Letter Inferring interpretable dynamical generators of local quantum observables from projective measurements through machine learning Giovanni Cemin, Francesco Carnazza, Sabine Andergassen, Georg Martius, Federico Carollo, and Igor Lesanovsky Phys. Rev. Applied 21, L041001 (2024) – Published 3 April 2024 Reconstructing the effective equation of motion for the time evolution of a subset of degrees of freedom of a larger system remains a problem of interest in quantum physics. Many methods have been developed, but they either rely on an ad hoc ansatz, demand data that is not experimentally accessible, or lack physical interpretability. The authors employ machine-learning methods to infer the effective dynamical generator from a noisy, finite set of local measurements. Their method yields interpretable results that may be used to infer noise models on quantum simulators, or to study thermalization dynamics in quantum many-body systems. Show Abstract Condensed Matter Physics Quantum Information PDFHTML Letter High-volume tunable resonator for axion searches above 7 GHz Taj A. Dyson, Chelsea L. Bartram, Ashley Davidson, Jonah B. Ezekiel, Laura M. Futamura, Tongtian Liu, and Chao-Lin Kuo Phys. Rev. Applied 21, L041002 (2024) – Published 23 April 2024 While haloscope experiments searching for axion dark matter with cylindrical microwave cavity resonators are the most sensitive to date, that sensitivity is degraded at high frequencies, due to geometric scaling. The authors demonstrate a prototype thin-shell cavity resonator that decouples volume from resonant frequency, and thus avoids such degradation. As the resonator comprises two mechanically isolated pieces, a protocol is developed for robust, automated precision alignment, which enables a wide tuning range for the resonator’s axion-sensitive TM 010 mode. A discussion of the instrument’s feasibility for high-frequency probes of the post-inflationary scenario is also offered. Show Abstract Astrophysics Optoelectronics Particles and Fields PDFHTML Letter Speed of electronic phase propagation in Ba Fe 2 As 2 revealed by dilatometry Xin Qin, Xingyu Wang, Wenshan Hong, Mengqiao Geng, Yuan Li, Huiqian Luo, Shiliang Li, and Yang Liu Phys. Rev. Applied 21, L041003 (2024) – Published 26 April 2024 Accurate measurement of a material’s coefficient of thermal expansion is a potentially powerful probe for investigating phase transitions. Unfortunately, familiar techniques are either low-resolution or put stringent requirements on sample preparation. This study implements ultrastable optical-fiber interferometry for contactless optical measurement with picometer spatial resolution, and can measure fragile samples less than 100 µm thick with millikelvin-level temperature resolution. Using their method on BaFe 2 As 2 , the authors discover hysteresis at the first-order phase transition between its antiferromagnetic and paramagnetic phases, with a boundary moving at about 188 µm/s. Show Abstract Condensed Matter Physics Materials Science Optics PDFHTML ARTICLES Temperature dependence of refractive indices of In P , Ga As , Al As , and In 0.53 Ga 0.47 As in the midinfrared spectral range determined by combined ellipsometry and Fourier-transform spectroscopy Monika Mikulicz, Tristan Smolka, Michal Rygala, Mikolaj Badura, Wojciech Kijaszek, Adriana Lozińska, Martin Kamp, and Marcin Motyka Phys. Rev. Applied 21, 044001 (2024) – Published 1 April 2024 Show Abstract Optics Optoelectronics Semiconductor Physics PDFHTML Real-projective-plane hybrid-order topological insulator realized in phononic crystals Pengtao Lai, Jien Wu, Zhenhang Pu, Qiuyan Zhou, Jiuyang Lu, Hui Liu, Weiyin Deng, Hua Cheng, Shuqi Chen, and Zhengyou Liu Phys. Rev. Applied 21, 044002 (2024) – Published 1 April 2024 Show Abstract Acoustics Metamaterials Topological Insulators PDFHTML Extending the scope and understanding of all-optical magnetization switching in Gd-based alloys by controlling the underlying temperature transients Maxime Verges, Wei Zhang, Quentin Remy, Yann Le-Guen, Jon Gorchon, Gregory Malinowski, Stephane Mangin, Michel Hehn, and Julius Hohlfeld Phys. Rev. Applied 21, 044003 (2024) – Published 1 April 2024 Show Abstract Magnetism Materials Science Optics PDFHTML Phase-change nonlocal metasurfaces for dynamic wave-front manipulation Tingting Liu, Dandan Zhang, Wenxing Liu, Tianbao Yu, Feng Wu, Shuyuan Xiao, Lujun Huang, and Andrey E. Miroshnichenko Phys. Rev. Applied 21, 044004 (2024) – Published 1 April 2024 Show Abstract Metamaterials Nanophysics Photonics PDFHTML Visualization of orbital twig edge states in phononic graphene lattices Feng Gao, Yu-Gui Peng, Xiao Xiang, Qi-Li Sun, Chen Zheng, Bin Li, and Xue-Feng Zhu Phys. Rev. Applied 21, 044005 (2024) – Published 2 April 2024 Show Abstract Acoustics Graphene Metamaterials PDFHTML Engineering equifrequency contours of metasurfaces for self-collimated surface-wave steering Sara M. Kandil, Dia’aaldin J. Bisharat, and Daniel F. Sievenpiper Phys. Rev. Applied 21, 044006 (2024) – Published 2 April 2024 Show Abstract Condensed Matter Physics Metamaterials Photonics PDFHTML Beyond the Rozanov bound on electromagnetic absorption via periodic temporal modulations Zeki Hayran and Francesco Monticone Phys. Rev. Applied 21, 044007 (2024) – Published 2 April 2024 Show Abstract Metamaterials Optics PDFHTML Direct electric current control of hyperchaotic packets of dissipative dark envelope solitons in a magnonic crystal active ring resonator Anastasia S. Bir, Sergei V. Grishin, Andrei A. Grachev, Olga I. Moskalenko, Alexey N. Pavlov, Dmitrii V. Romanenko, Valentin N. Skorokhodov, and Sergei A. Nikitov Phys. Rev. Applied 21, 044008 (2024) – Published 3 April 2024 Show Abstract Computational Physics Nonlinear Dynamics Spintronics PDFHTML Hybrid magnon-phonon cavity for large-amplitude terahertz spin-wave excitation Shihao Zhuang, Xufeng Zhang, Yujie Zhu, Nian X. Sun, Chang-Beom Eom, Paul G. Evans, and Jia-Mian Hu Phys. Rev. Applied 21, 044009 (2024) – Published 3 April 2024 Show Abstract Acoustics Magnetism Spintronics PDFHTML Applying a class of general maximally entangled states in measurement-device-independent quantum secure direct communication Jianfeng Liu, Xiangfu Zou, Xin Wang, Ying Chen, Zhenbang Rong, Zhiming Huang, Shenggen Zheng, Xueying Liang, and Jianxiong Wu Phys. Rev. Applied 21, 044010 (2024) – Published 4 April 2024 Show Abstract Quantum Information PDFHTML Intrinsic charged defects and lithium-ion transport mechanisms in Cd PS 3 Wenqi Xiong, Qi Yao, and Shengjun Yuan Phys. Rev. Applied 21, 044011 (2024) – Published 4 April 2024 Show Abstract Chemical Physics Energy Research Materials Science PDFHTML Supervised learning for robust quantum control in composite-pulse systems Zhi-Cheng Shi, Jun-Tong Ding, Ye-Hong Chen, Jie Song, Yan Xia, X.X. Yi, and Franco Nori Phys. Rev. Applied 21, 044012 (2024) – Published 4 April 2024 Show Abstract Quantum Information PDFHTML Manipulation of spin-orbit-torque efficiency via designing gradient structure in ferrimagnetic Ta / Tb - Co / Pt multilayers Long Liu, Jinxiang Wu, Zhixing Ye, Xiaotian Zhao, Wei Liu, and Zhidong Zhang Phys. Rev. Applied 21, 044013 (2024) – Published 5 April 2024 Show Abstract Magnetism Materials Science Spintronics PDFHTML Femtosecond-laser-induced creation of G and W color centers in silicon-on-insulator substrates Hugo Quard, Mario Khoury, Andong Wang, Tobias Herzig, Jan Meijer, Sébastien Pezzagna, Sébastien Cueff, David Grojo, Marco Abbarchi, Hai Son Nguyen, Nicolas Chauvin, and Thomas Wood Phys. Rev. Applied 21, 044014 (2024) – Published 5 April 2024 Show Abstract Optics Quantum Information Semiconductor Physics PDFHTML Synergy between asymmetric contact geometry and self-powered operation of an ultrasensitive Cs Pb Br 3 photodetector Sandaap Sathyanarayana, Navaneeth Krishnan K, and Bikas C. Das Phys. Rev. Applied 21, 044015 (2024) – Published 5 April 2024 Show Abstract Energy Research Optoelectronics Semiconductor Physics PDFHTML Multimodule microwave assembly for fast readout and charge-noise characterization of silicon quantum dots Felix-Ekkehard von Horstig, David J. Ibberson, Giovanni A. Oakes, Laurence Cochrane, David F. Wise, Nadia Stelmashenko, Sylvain Barraud, Jason A.W. Robinson, Frederico Martins, and M. Fernando Gonzalez-Zalba Phys. Rev. Applied 21, 044016 (2024) – Published 8 April 2024 Show Abstract Quantum Information Semiconductor Physics Superconductivity PDFHTML Quantum-logic-based 25 Mg + - 27 Al + optical frequency standard for the redefinition of the SI second Z. Y. Ma, K. Deng, Z. Y. Wang, W. Z. Wei, P. Hao, H. X. Zhang, L. R. Pang, B. Wang, F. F. Wu, H. L. Liu, W. H. Yuan, J. L. Chang, J. X. Zhang, Q. Y. Wu, J. Zhang, and Z. H. Lu Phys. Rev. Applied 21, 044017 (2024) – Published 8 April 2024 Show Abstract Atomic and Molecular Physics Optics Quantum Physics PDFHTML Magnon cat states induced by photon parametric coupling Da-Wei Liu, Ying Wu, and Liu-Gang Si Phys. Rev. Applied 21, 044018 (2024) – Published 8 April 2024 Show Abstract Magnetism Photonics Quantum Physics PDFHTML Lightweight photophoretic flyers with germanium coatings as selective absorbers Zhipeng Lu, Gulzhan Aldan, Danielle Levin, Matthew F. Campbell, and Igor Bargatin Phys. Rev. Applied 21, 044019 (2024) – Published 9 April 2024 Show Abstract Fluid Dynamics Materials Science Semiconductor Physics PDFHTML Large unidirectional magnetoresistance from the dual functionality of copper oxide in naturally oxidized light-metal Al/Cu bilayer films Lijuan Zhao, Yuzhi Li, Fu Liu, Tong Li, Yongzuo Wang, Xu Liu, Dezheng Yang, Changjun Jiang, and Cunxu Gao Phys. Rev. Applied 21, 044020 (2024) – Published 9 April 2024 Show Abstract Magnetism Materials Science Spintronics PDFHTML Quantum defects from a single surface exhibit strong mutual interactions Chih-Chiao Hung, Tim Kohler, and Kevin D. Osborn Phys. Rev. Applied 21, 044021 (2024) – Published 10 April 2024 Show Abstract Materials Science Optoelectronics Quantum Information PDFHTML Topology optimization for microwave control with reconfigurable intelligent metasurfaces in complex media Theodosios D. Karamanos, Mathias Fink, and Fabrice Lemoult Phys. Rev. Applied 21, 044022 (2024) – Published 11 April 2024 Show Abstract Computational Physics Metamaterials Photonics PDFHTML Editors' Suggestion Transient response of a gain-driven polariton Y.S. Gui and C.-M. Hu Phys. Rev. Applied 21, 044023 (2024) – Published 12 April 2024 The development of gain-driven polaritons offers a fresh approach to enhancing solid-state microwave sources and amplifiers, apart from the traditional concept of the maser. Despite their potential, these polaritons are governed by intricate dynamics that remain largely unexplored, impeding practical applications. The authors employ time-domain measurements to investigate the transient response of gain-driven polaritons, revealing distinct dynamical behaviors: damping, zero damping, and antidamping. This insight could impact the engineering of ultrafast polaritonic devices tailored for coherent microwave and optical applications. Show Abstract Magnetism Optoelectronics Spintronics PDFHTML Editors' Suggestion Broad-wave-vector spin pumping of flat-band magnons Jinlong Wang, Hanchen Wang, Jilei Chen, William Legrand, Peng Chen, Lutong Sheng, Jihao Xia, Guibin Lan, Yuelin Zhang, Rundong Yuan, Jing Dong, Xiufeng Han, Jean-Philippe Ansermet, and Haiming Yu Phys. Rev. Applied 21, 044024 (2024) – Published 12 April 2024 Spin pumping can generate spin current by driving a magnetic system into resonance, a phenomenon that can be electrically detected via the inverse spin Hall effect. However, the efficiency of spin current generation has remained limited, compared to that of spin-to-charge conversion. This work systematically demonstrates an innovative technique for electrically probing propagating spin waves and creating spin current with high efficiency, mediated by flat-band magnons excited by broad wave vectors. These findings lay a promising foundation for further experiments with propagating spin waves. Show Abstract Magnetism Optoelectronics Spintronics PDFHTML Polarization-insensitive microwave electrometry using Rydberg atoms Matthew Cloutman, Matthew Chilcott, Alexander Elliott, J. Susanne Otto, Amita B. Deb, and Niels Kjærgaard Phys. Rev. Applied 21, 044025 (2024) – Published 12 April 2024 Show Abstract Atomic and Molecular Physics Optics Quantum Physics PDFHTML Editors' Suggestion Coherent control of photomagnetic back-switching by double-pump laser pulses T. Zalewski, L. Nowak, and A. Stupakiewicz Phys. Rev. Applied 21, 044026 (2024) – Published 15 April 2024 The ultrafast all-optical control of magnetization without relying on heat is promising for magnetic recording technology. While the magnetization switching between two stable bit states does not require control over light polarization, photomagnetic toggling of magnetization (equivalent to the XOR logic operation) can be achieved. This study probes the efficiency of a back-switching scenario between two stable bit states, using a pair of femtosecond laser pulses with either the same or orthogonal orientations of linear polarization. Such a nonthermal toggle regime not only can provide recording at rates up to 50 GHz, but also can perform basic logic operations. Show Abstract Magnetism Optoelectronics Spintronics PDFHTML Procrustean entanglement concentration in quantum-classical networking Hsuan-Hao Lu, Muneer Alshowkan, Jude Alnas, Joseph M. Lukens, and Nicholas A. Peters Phys. Rev. Applied 21, 044027 (2024) – Published 15 April 2024 Show Abstract Optics Quantum Information PDFHTML Tunable atom-cavity interactions with configurable atomic chains Xinwei Li, Yijia Zhou, and Hao Zhang Phys. Rev. Applied 21, 044028 (2024) – Published 15 April 2024 Show Abstract Atomic and Molecular Physics Optics Quantum Information PDFHTML Acoustic polygonal Bessel vortices based on metasurfaces Yang Sun, Wei-Xu Cao, Xin-Rui Li, Qi Wei, Xing-Feng Zhu, Jie Yao, and Da-Jian Wu Phys. Rev. Applied 21, 044029 (2024) – Published 16 April 2024 Show Abstract Acoustics Metamaterials PDFHTML Quantum switch for itinerant microwave single photons with superconducting quantum circuits Yan Li, Zenghui Bao, Zhiling Wang, Yukai Wu, Jiahui Wang, Jize Yang, Haonan Xiong, Yipu Song, Hongyi Zhang, and Luming Duan Phys. Rev. Applied 21, 044030 (2024) – Published 16 April 2024 Show Abstract Photonics Quantum Information Superconductivity PDFHTML Mixed-halide vacancy-ordered double perovskite for photovoltaic and photocatalysis applications Sanika S. Padelkar, Vikram, Jacek J. Jasieniak, Alexandr N. Simonov, and Aftab Alam Phys. Rev. Applied 21, 044031 (2024) – Published 17 April 2024 Show Abstract Energy Research Optoelectronics Semiconductor Physics PDFHTML Generalization metrics for practical quantum advantage in generative models Kaitlin Gili, Marta Mauri, and Alejandro Perdomo-Ortiz Phys. Rev. Applied 21, 044032 (2024) – Published 17 April 2024 Show Abstract Quantum Information PDFHTML Ferroelectric control of the semiconductor-metal transition in two-dimensional M Si 2 P 4 / Sc 2 CO 2 ( M = Mo , W ) van der Waals heterostructures and application to nonvolatile memory devices Guogang Liu and San-Huang Ke Phys. Rev. Applied 21, 044033 (2024) – Published 17 April 2024 Show Abstract Electronics Materials Science Nanophysics PDFHTML Dipole-coupled core-shell perpendicular-shape-anisotropy magnetic tunnel junction with enhanced write speed and reduced crosstalk N. Caçoilo, L.D. Buda-Prejbeanu, B. Dieny, O. Fruchart, and I.L. Prejbeanu Phys. Rev. Applied 21, 044034 (2024) – Published 18 April 2024 Show Abstract Magnetism Materials Science Spintronics PDFHTML High-fidelity transmon-coupler-activated C C Z gate on fluxonium qubits Ilya A. Simakov, Grigoriy S. Mazhorin, Ilya N. Moskalenko, Seidali S. Seidov, and Ilya S. Besedin Phys. Rev. Applied 21, 044035 (2024) – Published 18 April 2024 Show Abstract Optoelectronics Quantum Information Superconductivity PDFHTML Geometry dependence of two-level-system noise and loss in a - Si C : H parallel-plate capacitors for superconducting microwave resonators K. Kouwenhoven, G.P.J. van Doorn, B.T. Buijtendorp, S.A.H. de Rooij, D. Lamers, D.J. Thoen, V. Murugesan, J.J.A. Baselmans, and P.J. de Visser Phys. Rev. Applied 21, 044036 (2024) – Published 18 April 2024 Show Abstract Optoelectronics Quantum Physics Superconductivity PDFHTML Analytical description of the charge-to-photon conversion efficiency for electroluminescent devices based on thermally activated delayed fluorescence Yungui Li and Paul W. M. Blom Phys. Rev. Applied 21, 044037 (2024) – Published 19 April 2024 Show Abstract Atomic and Molecular Physics Optoelectronics Semiconductor Physics PDFHTML All-optical photonic switch via the higher-order topological spin Hall effect Evelyn Y. González-Ramírez, José G. Murillo-Ramírez, Óscar O. Solís-Canto, and José A. Medina-Vázquez Phys. Rev. Applied 21, 044038 (2024) – Published 19 April 2024 Show Abstract Photonics Topological Insulators PDFHTML Editors' Suggestion Microwave-free wide-field magnetometry using nitrogen-vacancy centers Joseph Shaji Rebeirro, Muhib Omar, Till Lenz, Omkar Dhungel, Peter Blümler, Dmitry Budker, and Arne Wickenbrock Phys. Rev. Applied 21, 044039 (2024) – Published 22 April 2024 Microwave-free magnetometry with N- V centers has emerged as a complementary method to traditional techniques when the use of microwaves is impractical, particularly in applications involving metals and biological samples. Integration of this method with imaging capabilities offers the potential for nondestructive probing in a 2D spatial plane, while also capturing temporal dynamics within existing technological constraints. It is evident that the limits of sensitivity have not been fully realized, and improvements may be achieved via faster specialized cameras and advanced color-center fabrication. Show Abstract Magnetism Optics Quantum Physics PDFHTML Fabry-Pérot nanocavities controlled by Casimir forces in electrolyte solutions Lixin Ge, Kaipeng Liu, Ke Gong, and Rudolf Podgornik Phys. Rev. Applied 21, 044040 (2024) – Published 22 April 2024 Show Abstract Fluid Dynamics Nanophysics Optics PDFHTML Generation of topological spin textures using light-induced radially polarized magnetic field Yunqing Jiang, Pierre Vallobra, Xiaoqiang Zhang, Yong Xu, Qiwen Zhan, and Weisheng Zhao Phys. Rev. Applied 21, 044041 (2024) – Published 22 April 2024 Show Abstract Magnetism Optics Spintronics PDFHTML Editors' Suggestion Combinatorial optimization using the Lagrange primal-dual dynamics of parametric oscillator networks Sri Krishna Vadlamani, Tianyao Patrick Xiao, and Eli Yablonovitch Phys. Rev. Applied 21, 044042 (2024) – Published 23 April 2024 Machines based on coupled bistable oscillators can rapidly produce high-quality solutions to difficult problems in combinatorial optimization. While the dynamics of such systems can be derived, exactly why these dynamics are so good for optimization is unclear. This study presents a complete mathematical equivalence between coupled-oscillator machines and the primal-dual method of Lagrange multipliers, elucidating the precise mathematical role of each hardware component and enabling the principled design of more sophisticated optimization machines. Simulations show that such a circuit consumes extremely low amounts of power and energy per optimization, even for many variables. Show Abstract Complex Systems Computational Physics Nonlinear Dynamics PDFHTML Pseudodiffusive surface wave enabling the formation of flat wave fronts Xiaozhen Yang, Erda Wen, and Daniel F. Sievenpiper Phys. Rev. Applied 21, 044043 (2024) – Published 23 April 2024 Show Abstract Metamaterials Photonics Topological Insulators PDFHTML Attenuation management in terahertz frequency conversion with temporal boundary using a metallic structure Fumiaki Miyamaru, Miki Amaki, Keisuke Takano, Joel Pérez-Urquizo, Julien Madéo, Keshav M. Dani, Yosuke Nakata, and Toshihiro Nakanishi Phys. Rev. Applied 21, 044044 (2024) – Published 24 April 2024 Show Abstract Optics Optoelectronics Photonics PDFHTML Tunable acoustic transmission control and dual-mode ventilated sound insulation by a coupled acoustic metasurface Siyuan Gao, Xinghao Hu, Youyu Mo, Haohan Zeng, Feilong Mao, Yifan Zhu, and Hui Zhang Phys. Rev. Applied 21, 044045 (2024) – Published 24 April 2024 Show Abstract Acoustics Metamaterials PDFHTML Utilizing the Janus MoSSe surface polarization in designing complementary metal-oxide-semiconductor field-effect transistors Yun-Pin Chiu, Hsin-Wen Huang, and Yuh-Renn Wu Phys. Rev. Applied 21, 044046 (2024) – Published 25 April 2024 Show Abstract Condensed Matter Physics Nanophysics Optoelectronics PDFHTML Spatiotemporal visualization of a surface acoustic wave coupled to magnons across a submillimeter-long sample by pulsed laser interferometry Kazuki Maezawa, Shun Fujii, Kazuto Yamanoi, Yukio Nozaki, and Shinichi Watanabe Phys. Rev. Applied 21, 044047 (2024) – Published 25 April 2024 Show Abstract Acoustics Photonics Spintronics PDFHTML Resonance-dominant optomechanical entanglement in open quantum systems Cheng Shang and Hongchao Li Phys. Rev. Applied 21, 044048 (2024) – Published 25 April 2024 Show Abstract Mechanics Optics Quantum Physics PDFHTML Broadband ventilated sound insulation based on acoustic consecutive multiple Fano resonances Zi-xiang Xu, Wei-jie Qiu, Ze-qi Cheng, Jing Yang, Bin Liang, and Jian-chun Cheng Phys. Rev. Applied 21, 044049 (2024) – Published 26 April 2024 Show Abstract Acoustics Metamaterials PDFHTML Floquet analysis of a superradiant many-qutrit refrigerator Dmytro Kolisnyk, Friedemann Queißer, Gernot Schaller, and Ralf Schützhold Phys. Rev. Applied 21, 044050 (2024) – Published 26 April 2024 Show Abstract Energy Research Optics Quantum Information PDFHTML Optically detected magnetic resonance of nitrogen-vacancy centers in diamond under weak laser excitation Yong-Hong Yu, Rui-Zhi Zhang, Yue Xu, Xiu-Qi Chen, Huijie Zheng, Quan Li, Ren-Bao Liu, Xin-Yu Pan, Dmitry Budker, and Gang-Qin Liu Phys. Rev. Applied 21, 044051 (2024) – Published 26 April 2024 Show Abstract Magnetism Optics Quantum Physics PDFHTML Demonstration of chronometric leveling using transportable optical clocks beyond laser coherence limit Yi Yuan, Kaifeng Cui, Daoxin Liu, Jinbo Yuan, Jian Cao, Dehao Wang, Sijia Chao, Hualin Shu, and Xueren Huang Phys. Rev. Applied 21, 044052 (2024) – Published 29 April 2024 Show Abstract Atomic and Molecular Physics Optics Quantum Physics PDFHTML Attaining nearly ideal Dicke superradiance in expanded spatial domains Jun Ren, Shicheng Zhu, and Z. D. Wang Phys. Rev. Applied 21, 044053 (2024) – Published 29 April 2024 Show Abstract Photonics Plasmonics Quantum Information PDFHTML Current-density-modulated antiferromagnetic domain switching revealed by optical imaging in the Pt / Co O ( 001 ) bilayer Tong Wu, Haoran Chen, Tianping Ma, Jia Xu, and Yizheng Wu Phys. Rev. Applied 21, 044054 (2024) – Published 29 April 2024 Show Abstract