Communications PhysicsPub Date : 2025-01-01Epub Date: 2025-07-11DOI: 10.1038/s42005-025-02215-w
Shams Sohel Islam, Vahid Sazgari, Jennifer N Graham, Orion Gerguri, Petr Král, Ikuya Maetsu, Hrishikesh Gopakumar, Markus Müller, Rajib Sarkar, Vadim Grinenko, Gediminas Simutis, Toni Shiroka, Rustem Khasanov, Marc Janoschek, John M Tranquada, Hans Henning Klauss, Tadashi Adachi, Hubertus Luetkens, Zurab Guguchia
{"title":"Contrasting <i>c</i>-axis and in-plane uniaxial stress effects on superconductivity and stripe order in La<sub>1.885</sub>Ba<sub>0.115</sub>CuO<sub>4</sub>.","authors":"Shams Sohel Islam, Vahid Sazgari, Jennifer N Graham, Orion Gerguri, Petr Král, Ikuya Maetsu, Hrishikesh Gopakumar, Markus Müller, Rajib Sarkar, Vadim Grinenko, Gediminas Simutis, Toni Shiroka, Rustem Khasanov, Marc Janoschek, John M Tranquada, Hans Henning Klauss, Tadashi Adachi, Hubertus Luetkens, Zurab Guguchia","doi":"10.1038/s42005-025-02215-w","DOIUrl":"10.1038/s42005-025-02215-w","url":null,"abstract":"<p><p>The cuprate superconductor La<sub>2-<i>x</i></sub> Ba <sub><i>x</i></sub> CuO<sub>4</sub> (LBCO) near <i>x</i> = 0.125 is a striking example of intertwined electronic orders, where 3D superconductivity is anomalously suppressed, allowing spin and charge stripe order to develop. Understanding this interplay remains a key challenge in cuprates, highlighting the necessity of external tuning for deeper insight. While in-plane uniaxial stress enhances superconductivity and suppresses stripe order, the effects of <i>c</i>-axis compression remains largely unexplored. Here, we use muon spin rotation (<i>μ</i>SR) and AC susceptibility with an in situ piezoelectric stress device to investigate the spin-stripe order and superconductivity in LBCO-0.115 under <i>c</i>-axis compression. The measurements reveal a gradual suppression of the superconducting transition temperature (<i>T</i> <sub>c</sub>) with increasing <i>c</i>-axis stress, in stark contrast to the strong enhancement observed under in-plane stress. We further show that while in-plane stress rapidly reduces both the magnetic volume fraction (<i>V</i> <sub>m</sub>) and the spin-stripe ordering temperature (<i>T</i> <sub>so</sub>), <i>c</i>-axis compression has no effect, with <i>V</i> <sub>m</sub> and <i>T</i> <sub>so</sub> exhibiting an almost unchanged behavior up to the highest applied stress of 0.21 GPa. These findings demonstrate a strong anisotropy in stress response.</p>","PeriodicalId":10540,"journal":{"name":"Communications Physics","volume":"8 1","pages":"291"},"PeriodicalIF":5.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12254039/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144625504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Communications PhysicsPub Date : 2025-01-01Epub Date: 2025-04-16DOI: 10.1038/s42005-025-02094-1
Alexander P Antonov, Matthew Terkel, Fabian Jan Schwarzendahl, Carolina Rodríguez-Gallo, Pietro Tierno, Hartmut Löwen
{"title":"Controlling colloidal flow through a microfluidic Y-junction.","authors":"Alexander P Antonov, Matthew Terkel, Fabian Jan Schwarzendahl, Carolina Rodríguez-Gallo, Pietro Tierno, Hartmut Löwen","doi":"10.1038/s42005-025-02094-1","DOIUrl":"https://doi.org/10.1038/s42005-025-02094-1","url":null,"abstract":"<p><p>Microscopic particles flowing through narrow channels may accumulate near bifurcation points provoking flow reduction, clogging and ultimately chip breakage in a microfluidic device. Here we show that the full flow behavior of colloidal particles through a microfluidic Y-junction can be controlled by tuning the pair interactions and the degree of confinement. By combining experiments with numerical simulations, we investigate the dynamic states emerging when magnetizable colloids flow through a symmetric Y-junction such that a single particle can pass through both gates with the same probability. We show that clogging, induced by the inevitable presence of a stagnation point, can be avoided by repulsive interactions. Moreover we tune the pair interactions to steer branching into the two channels: attractive particles are flowing through the same gate, while repulsive colloids alternate between the two gates. Even details of the particle assembly such as buckling at the exit gate are tunable by the interactions and the channel geometry.</p>","PeriodicalId":10540,"journal":{"name":"Communications Physics","volume":"8 1","pages":"165"},"PeriodicalIF":5.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12003161/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143987046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Communications PhysicsPub Date : 2025-01-01Epub Date: 2025-04-30DOI: 10.1038/s42005-025-02036-x
Esteban Castro-Ruiz, Ognyan Oreshkov
{"title":"Relative subsystems and quantum reference frame transformations.","authors":"Esteban Castro-Ruiz, Ognyan Oreshkov","doi":"10.1038/s42005-025-02036-x","DOIUrl":"https://doi.org/10.1038/s42005-025-02036-x","url":null,"abstract":"<p><p>Recently there has been much effort in developing a quantum generalisation of reference frame transformations. Despite important progress, a complete understanding of their principles is still lacking. Here we derive quantum reference frame transformations for a broad range of symmetry groups from first principles, using only standard quantum theory. Our framework, naturally based on incoherent rather than coherent group averaging, yields reversible transformations that only depend on the reference frames and system of interest. We find more general transformations than those studied so far, which are valid only in a restricted subspace. Our framework contains additional degrees of freedom in the form of an \"extra particle\", which carries information about the quantum features of reference frame states. We study the centrally extended Galilei group specifically, highlighting key differences from previous proposals.</p>","PeriodicalId":10540,"journal":{"name":"Communications Physics","volume":"8 1","pages":"187"},"PeriodicalIF":5.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12043519/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143989252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Communications PhysicsPub Date : 2025-01-01Epub Date: 2025-08-15DOI: 10.1038/s42005-025-02228-5
Luka Blagojević, Ivan Bonamassa, Márton Pósfai
{"title":"Network dismantling by physical damage.","authors":"Luka Blagojević, Ivan Bonamassa, Márton Pósfai","doi":"10.1038/s42005-025-02228-5","DOIUrl":"10.1038/s42005-025-02228-5","url":null,"abstract":"<p><p>It is well-understood that the network structure of complex systems affects their robustness; the role played by the shape of spatially embedded networks, however, is less explored. Here, we study the robustness of networks where links are physical objects or physically transfer some quantity, hence the links can be disrupted at any point along their trajectory. To model physical damage, we tile each network with boxes and we sequentially damage these boxes, removing any link from the network that intersects a damaged tile. Using model and empirical networks, we systematically explore how the layout and the structure of networks jointly affect the resulting percolation transition. For example, we analytically and numerically show that randomly damaging a vanishing fraction of tiles is enough to destroy large-scale connectivity in randomly embedded networks. This demonstrates that the presence of long-range links makes networks extremely vulnerable to physical damage. Our work contributes to the emergent theory of physical networks.</p>","PeriodicalId":10540,"journal":{"name":"Communications Physics","volume":"8 1","pages":"333"},"PeriodicalIF":5.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12356698/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144871807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Communications PhysicsPub Date : 2025-01-01Epub Date: 2025-02-12DOI: 10.1038/s42005-025-01985-7
Felix J Meigel, Steffen Rulands
{"title":"Controlling noise with self-organized resetting.","authors":"Felix J Meigel, Steffen Rulands","doi":"10.1038/s42005-025-01985-7","DOIUrl":"10.1038/s42005-025-01985-7","url":null,"abstract":"<p><p>Biological systems often consist of a small number of constituents and are therefore inherently noisy. To function effectively, these systems must employ mechanisms to constrain the accumulation of noise. Such mechanisms have been extensively studied and comprise the constraint by external forces, nonlinear interactions, or the resetting of the system to a predefined state. Here, we propose a fourth paradigm for noise constraint: self-organized resetting, where the resetting rate and position emerge from self-organization through time-discrete interactions. We study general properties of self-organized resetting systems using the paradigmatic example of cooperative resetting, where random pairs of Brownian particles are reset to their respective average. We demonstrate that such systems undergo a delocalization phase transition, separating regimes of constrained and unconstrained noise accumulation. Additionally, we show that systems with self-organized resetting can adapt to external forces and optimize search behavior for reaching target values. Self-organized resetting has various applications in nature and technology, which we demonstrate in the context of sexual interactions in fungi and spatial dispersion in shared mobility services. This work opens routes into the application of self-organized resetting across various systems in biology and technology.</p>","PeriodicalId":10540,"journal":{"name":"Communications Physics","volume":"8 1","pages":"63"},"PeriodicalIF":5.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11813803/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143413634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Communications PhysicsPub Date : 2025-01-01Epub Date: 2025-04-14DOI: 10.1038/s42005-025-02080-7
Claudia Piccinini, Athanasios Paralikis, José Ferreira Neto, Abdulmalik A Madigawa, Paweł Wyborski, Vikas Remesh, Luca Vannucci, Niels Gregersen, Battulga Munkhbat
{"title":"High-purity and stable single-photon emission in bilayer WSe<sub>2</sub> via phonon-assisted excitation.","authors":"Claudia Piccinini, Athanasios Paralikis, José Ferreira Neto, Abdulmalik A Madigawa, Paweł Wyborski, Vikas Remesh, Luca Vannucci, Niels Gregersen, Battulga Munkhbat","doi":"10.1038/s42005-025-02080-7","DOIUrl":"https://doi.org/10.1038/s42005-025-02080-7","url":null,"abstract":"<p><p>The excitation scheme is essential for single-photon sources, as it governs exciton preparation, decay dynamics, and the spectral diffusion of emitted photons. While phonon-assisted excitation has shown promise in other quantum emitter platforms, its proper implementation and systematic comparison with alternative excitation schemes have not yet been demonstrated in transition metal dichalcogenide (TMD) quantum emitters. Here, we investigate the impact of various optical excitation strategies on the single-photon emission properties of bilayer WSe<sub>2</sub> quantum emitters. Based on our theoretical predictions for the exciton preparation fidelity, we compare the excitation via the longitudinal acoustic and breathing phonon modes to conventional above-band and near-resonance excitations. Under acoustic phonon-assisted excitation, we achieve narrow single-photon emission with a reduced spectral diffusion of 0.0129 nm, a 1.8-fold improvement over above-band excitation. Additionally, excitation through breathing-phonon mode yields a high purity of 0.947 ± 0.079 and reduces the decay time by over an order of magnitude, reaching (1.33 ± 0.04) ns. Our comprehensive study demonstrates the crucial role of phonon-assisted excitation in optimizing the performance of WSe<sub>2</sub>-based quantum emitters, providing valuable insights for the development of single-photon sources for quantum photonics applications.</p>","PeriodicalId":10540,"journal":{"name":"Communications Physics","volume":"8 1","pages":"158"},"PeriodicalIF":5.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11996677/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143957674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Dissipation-induced non-equilibrium phases with temporal and spatial order.","authors":"Zhao Zhang, Davide Dreon, Tilman Esslinger, Dieter Jaksch, Berislav Buca, Tobias Donner","doi":"10.1038/s42005-025-02113-1","DOIUrl":"10.1038/s42005-025-02113-1","url":null,"abstract":"<p><p>Understanding spatial and temporal order in many-body systems is a key challenge, particularly in out-of-equilibrium settings. A major hurdle is developing controlled model systems to study these phases. We propose an experiment with a driven quantum gas coupled to a dissipative optical cavity, realizing a non-equilibrium phase diagram featuring both spatial and temporal order. The system's control parameter is the detuning between the drive frequency and cavity resonance. Negative detunings yield a spatially ordered phase, while positive detunings produce phases with both spatial order and persistent oscillations, forming dissipative spatio-temporal lattices. We also identify a phase where the dynamics dephase, leading to chaotic behavior. Numerical and analytical evidence supports these superradiant phases, showing that the spatio-temporal lattice originates from cavity dissipation. The atoms experience accelerated transport, either via uniform acceleration or abrupt momentum transitions. Our work provides insights into temporal phases of matter not possible at equilibrium.</p>","PeriodicalId":10540,"journal":{"name":"Communications Physics","volume":"8 1","pages":"211"},"PeriodicalIF":5.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12098123/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144141602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Communications PhysicsPub Date : 2025-01-01Epub Date: 2025-07-17DOI: 10.1038/s42005-025-02161-7
Christian Bertoni, Clara Wassner, Giacomo Guarnieri, Jens Eisert
{"title":"Typical thermalization of low-entanglement states.","authors":"Christian Bertoni, Clara Wassner, Giacomo Guarnieri, Jens Eisert","doi":"10.1038/s42005-025-02161-7","DOIUrl":"10.1038/s42005-025-02161-7","url":null,"abstract":"<p><p>Proving thermalization from the unitary evolution of closed quantum systems is one of the oldest questions that is still only partially resolved. Efforts led to various versions of the eigenstate thermalization hypothesis (ETH), which implies thermalization under certain conditions. Whether the ETH holds in specific systems is however difficult to verify from the microscopic description of the system. In this work, we focus on thermalization under local Hamiltonians of low-entanglement initial states, which are operationally accessible in many natural physical settings, including schemes for testing thermalization in experiments and quantum simulators. We prove thermalization of these states under precise conditions that have operational significance. More specifically, motivated by arguments of unavoidable finite resolution, we define a random energy smoothing on local Hamiltonians that leads to local thermalization when the initial state has low entanglement. Finally we show that this transformation affects neither the Gibbs state locally nor, under generic smoothness conditions on the spectrum, the short-time dynamics.</p>","PeriodicalId":10540,"journal":{"name":"Communications Physics","volume":"8 1","pages":"301"},"PeriodicalIF":5.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12270909/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144674035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Communications PhysicsPub Date : 2025-01-01Epub Date: 2025-04-08DOI: 10.1038/s42005-025-02043-y
D Burba, G Juzeliūnas, I B Spielman, L Barbiero
{"title":"Many-body phases from effective geometrical frustration and long-range interactions in a subwavelength lattice.","authors":"D Burba, G Juzeliūnas, I B Spielman, L Barbiero","doi":"10.1038/s42005-025-02043-y","DOIUrl":"https://doi.org/10.1038/s42005-025-02043-y","url":null,"abstract":"<p><p>Geometrical frustration and long-range couplings are key contributors to create quantum phases with different properties throughout physics. We propose a scheme where both ingredients naturally emerge in a Raman induced subwavelength lattice. We first demonstrate that Raman-coupled multicomponent quantum gases can realize a highly versatile frustrated Hubbard Hamiltonian with long-range interactions. The deeply subwavelength lattice period leads to strong long-range interparticle repulsion with tunable range and decay. We numerically demonstrate that the combination of frustration and long-range couplings generates many-body phases of bosons, including a range of density-wave and superfluid phases with broken translational and time reversal symmetries, respectively. Our results thus represent a powerful approach for efficiently combining long-range interactions and frustration in quantum simulations.</p>","PeriodicalId":10540,"journal":{"name":"Communications Physics","volume":"8 1","pages":"141"},"PeriodicalIF":5.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11978520/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143970964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Communications PhysicsPub Date : 2025-01-01Epub Date: 2025-01-21DOI: 10.1038/s42005-025-01949-x
Claudia Gollner, Valentina Shumakova, Jacob Barker, Audrius Pugžlys, Andrius Baltuška, Pavel Polynkin
{"title":"Carrier-envelope-phase characterization of ultrafast mid-infrared laser pulses through harmonic generation and interference in argon.","authors":"Claudia Gollner, Valentina Shumakova, Jacob Barker, Audrius Pugžlys, Andrius Baltuška, Pavel Polynkin","doi":"10.1038/s42005-025-01949-x","DOIUrl":"https://doi.org/10.1038/s42005-025-01949-x","url":null,"abstract":"<p><p>The propagation of an intense, femtosecond, mid-infrared laser pulse in a gaseous medium results in the efficient generation of spectrally overlapping low-order harmonics, whose optical carrier phases are linked to the carrier-envelope phase (CEP) of the mid-infrared driver pulse. Random peak-power fluctuations of the driver pulses, converted to the fluctuations of the nonlinear phases, acquired by the pulses on propagation, cause this phase correlation to smear out. We show that this seemingly irreversible loss of phase can be recovered, and that the complete information needed for the phase correction is contained in the harmonic spectra itself. The optical phases of the intense driver pulse and its harmonics, as fragile as they appear to be against even weak disturbances, evolve deterministically during highly nonlinear propagation through the extended ionization region.</p>","PeriodicalId":10540,"journal":{"name":"Communications Physics","volume":"8 1","pages":"33"},"PeriodicalIF":5.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12015979/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143971106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}