Physical review letters最新文献

{"title":"First Search for Light Dark Matter in the Neutrino Fog with XENONnT.","authors":"E Aprile, J Aalbers, K Abe, S Ahmed Maouloud, L Althueser, B Andrieu, E Angelino, D Antón Martin, F Arneodo, L Baudis, M Bazyk, L Bellagamba, R Biondi, A Bismark, K Boese, A Brown, G Bruno, R Budnik, C Cai, C Capelli, J M R Cardoso, A P Cimental Chávez, A P Colijn, J Conrad, J J Cuenca-García, V D'Andrea, L C Daniel Garcia, M P Decowski, A Deisting, C Di Donato, P Di Gangi, S Diglio, K Eitel, S El Morabit, A Elykov, A D Ferella, C Ferrari, H Fischer, T Flehmke, M Flierman, W Fulgione, C Fuselli, P Gaemers, R Gaior, M Galloway, F Gao, S Ghosh, R Giacomobono, R Glade-Beucke, L Grandi, J Grigat, H Guan, M Guida, P Gyorgy, R Hammann, A Higuera, C Hils, L Hoetzsch, N F Hood, M Iacovacci, Y Itow, J Jakob, F Joerg, Y Kaminaga, M Kara, P Kavrigin, S Kazama, M Kobayashi, D Koke, A Kopec, H Landsman, R F Lang, L Levinson, I Li, S Li, S Liang, Y-T Lin, S Lindemann, M Lindner, K Liu, M Liu, J Loizeau, F Lombardi, J Long, J A M Lopes, T Luce, Y Ma, C Macolino, J Mahlstedt, A Mancuso, L Manenti, F Marignetti, T Marrodán Undagoitia, K Martens, J Masbou, E Masson, S Mastroianni, A Melchiorre, J Merz, M Messina, A Michael, K Miuchi, A Molinario, S Moriyama, K Morå, Y Mosbacher, M Murra, J Müller, K Ni, U Oberlack, B Paetsch, Y Pan, Q Pellegrini, R Peres, C Peters, J Pienaar, M Pierre, G Plante, T R Pollmann, L Principe, J Qi, J Qin, D Ramírez García, M Rajado, R Singh, L Sanchez, J M F Dos Santos, I Sarnoff, G Sartorelli, J Schreiner, P Schulte, H Schulze Eißing, M Schumann, L Scotto Lavina, M Selvi, F Semeria, P Shagin, S Shi, J Shi, M Silva, H Simgen, C Szyszka, A Takeda, P-L Tan, D Thers, F Toschi, G Trinchero, C D Tunnell, F Tönnies, K Valerius, S Vecchi, S Vetter, F I Villazon Solar, G Volta, C Weinheimer, M Weiss, D Wenz, C Wittweg, V H S Wu, Y Xing, D Xu, Z Xu, M Yamashita, L Yang, J Ye, L Yuan, G Zavattini, M Zhong","doi":"10.1103/PhysRevLett.134.111802","DOIUrl":"https://doi.org/10.1103/PhysRevLett.134.111802","url":null,"abstract":"<p><p>We search for dark matter (DM) with a mass [3,12]  GeV/c^{2} using an exposure of 3.51  tonne year with the XENONnT experiment. We consider spin-independent DM-nucleon interactions mediated by a heavy or light mediator, spin-dependent DM-neutron interactions, momentum-dependent DM scattering, and mirror DM. Using a lowered energy threshold compared to the previous weakly interacting massive particle search, a blind analysis of [0.5, 5.0] keV nuclear recoil events reveals no significant signal excess over the background. XENONnT excludes spin-independent DM-nucleon cross sections >2.5×10^{-45}  cm^{2} at 90% confidence level for 6  GeV/c^{2} DM. In the considered mass range, the DM sensitivity approaches the \"neutrino fog,\" the limitation where neutrinos produce a signal that is indistinguishable from that of light DM-xenon nucleus scattering.</p>","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"134 11","pages":"111802"},"PeriodicalIF":8.1,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143796222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photonic Spin Hall Effect by Electro-optically Induced Pancharatnam-Berry Phases.","authors":"Xingliang Xie, Hongdao Cheng, Huifeng Chen, Huadan Zheng, Yongchun Zhong, Jieyuan Tang, Jianhui Yu, Zhe Chen, Wenguo Zhu","doi":"10.1103/PhysRevLett.134.113805","DOIUrl":"https://doi.org/10.1103/PhysRevLett.134.113805","url":null,"abstract":"<p><p>Here, a novel photonic spin Hall effect is demonstrated based on the spatially varying Pancharatnam-Berry (PB) phases, aroused naturally in an X-cut LiTaO_{3} crystal via the Pockels effect. Applied with an electric field, the principal axes of crystal will rotate around the x-axis with the rotation angle varying linearly with the y component of the applied field. By depositing an asymmetric electrode pair on the crystal to induce inhomogeneously distributed electric fields, spatially varying rotations of the principal axes of crystal are generated, resulting in spatially varying PB phases. These spatially varying PB phases are redistributable by the applied voltage, different from those unchangeable PB phases aroused by the spatially varying orientations of anisotropic structure units such as patterned liquid crystals and metasurfaces. The redistributable PB phases can cause tunable separations of spin photons in the momentum space. The separation speed is measured as ∼0.16  GHz. These findings deepen the understanding of the geometric phase and pave the way for high-speed control of spin photons.</p>","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"134 11","pages":"113805"},"PeriodicalIF":8.1,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143796237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Two-Dimensional Fully Compensated Ferrimagnetism.","authors":"Yichen Liu, San-Dong Guo, Yongpan Li, Cheng-Cheng Liu","doi":"10.1103/PhysRevLett.134.116703","DOIUrl":"https://doi.org/10.1103/PhysRevLett.134.116703","url":null,"abstract":"<p><p>Antiferromagnetic spintronics has long been a subject of intense research interest, and the recent introduction of altermagnetism has further ignited enthusiasm in the field. However, fully compensated ferrimagnetism, which exhibits band spin splitting but zero net magnetization, has yet to receive enough attention. Since the experimental preparation of two-dimensional (2D) magnetic van der Waals (vdW) materials in 2017, 2D magnetic materials, thanks to their super tunability, have quickly become an important playground for spintronics. Here, we extend the concept of fully compensated ferrimagnetism (fFIM) to two dimensions and propose 2D filling-enforced fFIM, demonstrate its stability and ease of manipulation, and present three feasible realization schemes with respective exemplary candidate materials. A simple model for 2D fully compensated ferrimagnets (fFIMs) is developed. Further investigation of 2D fFIMs' physical properties reveals that they not only exhibit significant magneto-optical response but also show fully spin-polarized currents and the anomalous Hall effect in the half-metallic states, displaying characteristics previously almost exclusive to ferromagnetic materials, greatly broadening the research and application prospects of spintronic materials.</p>","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"134 11","pages":"116703"},"PeriodicalIF":8.1,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143796008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Erratum: Self-Consistent Extraction of Spectroscopic Bounds on Light New Physics [Phys. Rev. Lett. 130, 121801 (2023)].","authors":"Cédric Delaunay, Jean-Philippe Karr, Teppei Kitahara, Jeroen C J Koelemeij, Yotam Soreq, Jure Zupan","doi":"10.1103/PhysRevLett.134.119901","DOIUrl":"https://doi.org/10.1103/PhysRevLett.134.119901","url":null,"abstract":"<p><p>This corrects the article DOI: 10.1103/PhysRevLett.130.121801.</p>","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"134 11","pages":"119901"},"PeriodicalIF":8.1,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143796164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Self-Trapping Phenomenon, Multistability and Chaos in Open Anisotropic Dicke Dimer.","authors":"G Vivek, Debabrata Mondal, Subhadeep Chakraborty, S Sinha","doi":"10.1103/PhysRevLett.134.113404","DOIUrl":"https://doi.org/10.1103/PhysRevLett.134.113404","url":null,"abstract":"<p><p>We investigate semiclassical dynamics of a coupled atom-photon interacting system described by a dimer of anisotropic Dicke model in the presence of photon loss, exhibiting a rich variety of nonlinear dynamics. Based on symmetries and dynamical classification, we characterize and chart out various dynamical phases in a phase diagram. A key feature of this system is the multistability of different dynamical states, particularly the coexistence of various superradiant phases as well as limit cycles. Remarkably, this dimer system manifests self-trapping phenomena, resulting in a photon population imbalance between the cavities. Such a self-trapped state arises from a saddle-node bifurcation, which can be understood from an equivalent Landau-Ginzburg description. Additionally, we identify a unique class of oscillatory dynamics, \"self-trapped limit cycle,\" hosting self-trapping of photons. The absence of stable dynamical phases leads to the onset of chaos, which is diagnosed using the saturation value of the decorrelator dynamics. Moreover, the self-trapped states can coexist with chaotic attractor, which may have intriguing consequences in quantum dynamics. Finally, we discuss the experimental relevance of our findings, which can be tested in cavity and circuit quantum electrodynamics setups.</p>","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"134 11","pages":"113404"},"PeriodicalIF":8.1,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143795808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chiral Resonant Modes Induced by Intrinsic Birefringence in Lithium Niobate Metasurfaces.","authors":"Bo Wang, Tingyue Zhu, Yunan Liu, Haifang Yang, Ruhao Pan, Junjie Li","doi":"10.1103/PhysRevLett.134.113802","DOIUrl":"https://doi.org/10.1103/PhysRevLett.134.113802","url":null,"abstract":"<p><p>The intrinsic chirality of natural materials is known to be weak, prompting extensive efforts to enhance chiral light-matter interactions on the metasurface platform. Chiral metasurfaces are typically created by manipulating the geometry of nanostructures, such as three-dimensional helical structures and slanted structures. However, these approaches are generally challenging to implement experimentally in optical frequency ranges. Here, we present the achievement of significant chirality on planar lithium niobate metasurfaces. We theoretically demonstrate that the birefringence of lithium niobate enables a strong coupling between two nearly degenerate resonant modes when rotating the optical axis. Despite the achiral geometric morphology of the lithium niobate structure, we show that these mixed modes exhibit chirality and can produce nearly full circular dichroism signals. Moreover, we experimentally validate our theoretical proposal using our advanced process technique for lithium niobate nanostructures and the measured circular dichroism signal reaches -0.53. These findings offer new possibilities for chiral metaphotonics.</p>","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"134 11","pages":"113802"},"PeriodicalIF":8.1,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143796098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Process-Directed Self-Assembly of the Frank-Kasper A15 Structure in Linear, Conformationally Symmetric Block Copolymers.","authors":"Xiao-Jie Geng, Hao Li, Xiao Yang, Li-Jia An, Marcus Müller, De-Wen Sun","doi":"10.1103/PhysRevLett.134.118102","DOIUrl":"https://doi.org/10.1103/PhysRevLett.134.118102","url":null,"abstract":"<p><p>Protracted equilibration times and a multitude of competing periodically modulated structures are common characteristics of complex, self-assembled phases in block copolymer materials. These characteristics highlight the importance of designing processes to reproducibly direct the structure evolution of complex, spatially modulated structures. Using general symmetry considerations, we design a process that deterministically transforms the common, double-gyroid (DG) phase of linear diblock copolymers into a metastable A15 structure by irreversibly switching a conformationally symmetric ABB^{'} diblock copolymer into an ABA^{'} triblock copolymer. Key to the fabrication of the Frank-Kasper A15 structure is the nonmonotonic time evolution of the segregation that allows us to partition the large unit cell of the DG phase into 8 equivalent A15 units. Comparison between dynamic self-consistent field theory and particle-based simulations demonstrates the robustness of the designed pathway against thermal fluctuations and memory effects due to the underlying Rouse dynamics. Metastable structures that can be accessed from the DG phase are systematically explored as a function of molecular asymmetry and incompatibility.</p>","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"134 11","pages":"118102"},"PeriodicalIF":8.1,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143795894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantum Thermalization via Travelling Waves.","authors":"Antonio Picano, Giulio Biroli, Marco Schirò","doi":"10.1103/PhysRevLett.134.116503","DOIUrl":"https://doi.org/10.1103/PhysRevLett.134.116503","url":null,"abstract":"<p><p>Isolated quantum many-body systems which thermalize under their own dynamics are expected to act as their own thermal baths, thereby losing memory of initial conditions and bringing their local subsystems to thermal equilibrium. Here we show that the infinite-dimensional limit of a quantum lattice model, as described by dynamical mean-field theory (DMFT), provides a natural framework to understand this self-consistent thermalization process. Using the Fermi-Hubbard model as a working example, we demonstrate that the emergence of a self-consistent bath occurs via a sharp thermalization front, moving ballistically and separating the initial condition from the long time thermal fixed point. We characterize the full DMFT dynamics through an effective temperature for which we derive a traveling wave equation of the Fisher-Kolmogorov-Petrovsky-Piskunov type. This equation allows for predicting the asymptotic shape of the front and its velocity, which match perfectly the full DMFT numerics. Our results provide a new angle to understand the onset of quantum thermalization in closed isolated systems.</p>","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"134 11","pages":"116503"},"PeriodicalIF":8.1,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143795895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Backbone Exponent and Annulus Crossing Probability for Planar Percolation.","authors":"Pierre Nolin, Wei Qian, Xin Sun, Zijie Zhuang","doi":"10.1103/PhysRevLett.134.117101","DOIUrl":"https://doi.org/10.1103/PhysRevLett.134.117101","url":null,"abstract":"<p><p>We report the recent derivation of the backbone exponent for 2D percolation. In contrast to previously known exactly solved percolation exponents, the backbone exponent is a transcendental number, which is a root of an elementary equation. We also report an exact formula for the probability that there are two disjoint paths of the same color crossing an annulus. The backbone exponent captures the leading asymptotic, while the other roots of the elementary equation capture the asymptotic of the remaining terms. This suggests that the backbone exponent is part of a conformal field theory (CFT) whose bulk spectrum contains this set of roots. Our approach is based on the coupling between Schramm-Loewner evolution curves and Liouville quantum gravity (LQG), and the integrability of Liouville CFT that governs the LQG surfaces.</p>","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"134 11","pages":"117101"},"PeriodicalIF":8.1,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143796157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chern Number Tunable Quantum Anomalous Hall Effect in Compensated Antiferromagnets.","authors":"Wenhao Liang, Zeyu Li, Jiaqi An, Yafei Ren, Zhenhua Qiao, Qian Niu","doi":"10.1103/PhysRevLett.134.116603","DOIUrl":"https://doi.org/10.1103/PhysRevLett.134.116603","url":null,"abstract":"<p><p>We propose to realize the quantum anomalous Hall effect (QAHE) in two-dimensional compensated antiferromagnets without net spin magnetization. We consider antiferromagnetic MnBi_{2}Te_{4} as a concrete example. By breaking the parity-time (PT) symmetry of even-layer MnBi_{2}Te_{4}, we find that the system can host the QAHE with a nonzero Chern number. We show that by controlling the antiferromagnetic spin configuration-for example, down/up/up/down that breaks PT symmetry-tetralayer MnBi_{2}Te_{4} can host a Chern number |C|=1. Such spin configuration can be stabilized by pinning the spin orientations of the surfaces. Furthermore, via tuning the on-site orbital energy and vertical electric fields, we find rich QAHE phases with tunable Chern number of |C|=1,2,3. In addition, we reveal that the edge states are layer selective and primarily located at the boundaries of the bottom and top layers. Our Letter not only proposes a scheme to realize Chern number tunable QAHE in antiferromagnets without net spin magnetization but also provides a platform for layer-selective dissipationless transport devices.</p>","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"134 11","pages":"116603"},"PeriodicalIF":8.1,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143796159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}