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Topology and Nuclear Size Determine Cell Packing on Growing Lung Spheroids
IF 12.5 1区 物理与天体物理
Physical Review X Pub Date : 2025-03-21 DOI: 10.1103/physrevx.15.011067
Wenhui Tang, Jessie Huang, Adrian F. Pegoraro, James H. Zhang, Yiwen Tang, Darrell N. Kotton, Dapeng Bi, Ming Guo
{"title":"Topology and Nuclear Size Determine Cell Packing on Growing Lung Spheroids","authors":"Wenhui Tang, Jessie Huang, Adrian F. Pegoraro, James H. Zhang, Yiwen Tang, Darrell N. Kotton, Dapeng Bi, Ming Guo","doi":"10.1103/physrevx.15.011067","DOIUrl":"https://doi.org/10.1103/physrevx.15.011067","url":null,"abstract":"Within multicellular living systems, cells coordinate their positions with spatiotemporal accuracy to form various tissue structures and control development. These arrangements can be regulated by tissue geometry, biochemical cues, as well as mechanical perturbations. However, how cells pack during dynamic three-dimensional multicellular architectures formation remains unclear. Here, examining a growing spherical multicellular system, human lung alveolospheres, we observe an emergence of hexagonal packing order and a structural transition of cells that comprise the spherical epithelium. Surprisingly, the cell packing behavior on the spherical surface of lung alveolospheres resembles hard-disks packing on spheres, where the less deformable cell nuclei act as effective “hard disks” and prevent cells from getting too close. Nucleus-to-cell size ratio increases during lung spheroids growth; as a result, we find more hexagon-concentrated cellular packing with increasing bond orientational order. Furthermore, by osmotically changing the compactness of cells on alveolospheres, we observe a more ordered packing when nucleus-to-cell size ratio increases, and vice versa. These more ordered cell packing characteristics are consistent with reduced cell dynamics, together suggesting that better cellular packing stabilizes local cell neighborhoods and may regulate more complex biological functions such as cellular maturation and tissue morphogenesis. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20161,"journal":{"name":"Physical Review X","volume":"16 1","pages":""},"PeriodicalIF":12.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143672334","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}
引用次数: 0
Strong Orbital-Lattice Coupling Induces Glassy Thermal Conductivity in High-Symmetry Single Crystal BaTiS3
IF 12.5 1区 物理与天体物理
Physical Review X Pub Date : 2025-03-20 DOI: 10.1103/physrevx.15.011066
Yan Wang, Lin Xie, Haobo Yang, Mingyuan Hu, Xin Qian, Ronggui Yang, Jiaqing He
{"title":"Strong Orbital-Lattice Coupling Induces Glassy Thermal Conductivity in High-Symmetry Single Crystal BaTiS3","authors":"Yan Wang, Lin Xie, Haobo Yang, Mingyuan Hu, Xin Qian, Ronggui Yang, Jiaqing He","doi":"10.1103/physrevx.15.011066","DOIUrl":"https://doi.org/10.1103/physrevx.15.011066","url":null,"abstract":"In this work, we investigated glassy lattice thermal conductivity in high-symmetry BaTi</a:mi></a:mrow>S</a:mi></a:mrow>3</a:mn></a:mrow></a:msub></a:mrow></a:mrow></a:mrow></a:math> crystals, with a particular focus on the critical interplay between orbital electrons and lattice dynamics. Strong orbital-lattice coupling was found to induce spontaneous symmetry breaking through the Ti-S octahedral distortions, leading to the formation of a unique 1D order–2D disorder lattice structure. With neuroevolution potentials, molecular dynamics simulation of this structure successfully reproduced the glasslike in-plane lattice thermal conductivity observed in experiments. The predicted out-of-plane thermal conductivity decreases with temperature, exhibiting a crystalline trend that is consistent with our measurements. Our findings provide fundamental insights into the mechanism of anomalous amorphous thermal conductivity in single crystals, which arises from the coexistence of overall high symmetry and local structural disorder in specific regions. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20161,"journal":{"name":"Physical Review X","volume":"23 1","pages":""},"PeriodicalIF":12.5,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666660","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}
引用次数: 0
Network Reconstruction via the Minimum Description Length Principle
IF 12.5 1区 物理与天体物理
Physical Review X Pub Date : 2025-03-20 DOI: 10.1103/physrevx.15.011065
Tiago P. Peixoto
{"title":"Network Reconstruction via the Minimum Description Length Principle","authors":"Tiago P. Peixoto","doi":"10.1103/physrevx.15.011065","DOIUrl":"https://doi.org/10.1103/physrevx.15.011065","url":null,"abstract":"A fundamental problem associated with the task of network reconstruction from dynamical or behavioral data consists in determining the most appropriate model complexity in a manner that prevents overfitting and produces an inferred network with a statistically justifiable number of edges and their weight distribution. The status quo in this context is based on L</a:mi>1</a:mn></a:msub></a:math> regularization combined with cross-validation. However, besides its high computational cost, this commonplace approach unnecessarily ties the promotion of sparsity, i.e., abundance of zero weights, with weight “shrinkage.” This combination forces a trade-off between the bias introduced by shrinkage and the network sparsity, which often results in substantial overfitting even after cross-validation. In this work, we propose an alternative nonparametric regularization scheme based on hierarchical Bayesian inference and weight quantization, which does not rely on weight shrinkage to promote sparsity. Our approach follows the minimum description length principle, and uncovers the weight distribution that allows for the most compression of the data, thus avoiding overfitting without requiring cross-validation. The latter property renders our approach substantially faster and simpler to employ, as it requires a single fit to the complete data, instead of many fits for multiple data splits and choice of regularization parameter. As a result, we have a principled and efficient inference scheme that can be used with a large variety of generative models, without requiring the number of reconstructed edges and their weight distribution to be known in advance. In a series of examples, we also demonstrate that our scheme yields systematically increased accuracy in the reconstruction of both artificial and empirical networks. We highlight the use of our method with the reconstruction of interaction networks between microbial communities from large-scale abundance samples involving on the order of <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mrow><c:msup><c:mrow><c:mn>10</c:mn></c:mrow><c:mrow><c:mn>4</c:mn></c:mrow></c:msup><c:mi>–</c:mi><c:msup><c:mrow><c:mn>10</c:mn></c:mrow><c:mrow><c:mn>5</c:mn></c:mrow></c:msup></c:mrow></c:math> species and demonstrate how the inferred model can be used to predict the outcome of potential interventions and tipping points in the system. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20161,"journal":{"name":"Physical Review X","volume":"1 1","pages":""},"PeriodicalIF":12.5,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666661","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}
引用次数: 0
Theory of Metastable States in Many-Body Quantum Systems
IF 12.5 1区 物理与天体物理
Physical Review X Pub Date : 2025-03-19 DOI: 10.1103/physrevx.15.011064
Chao Yin, Federica M. Surace, Andrew Lucas
{"title":"Theory of Metastable States in Many-Body Quantum Systems","authors":"Chao Yin, Federica M. Surace, Andrew Lucas","doi":"10.1103/physrevx.15.011064","DOIUrl":"https://doi.org/10.1103/physrevx.15.011064","url":null,"abstract":"We present a mathematical theory of metastable pure states in closed many-body quantum systems with finite-dimensional Hilbert space. Given a Hamiltonian, a pure state is defined to be metastable when all sufficiently local operators either stabilize the state or raise its average energy. We prove that short-range-entangled metastable states are necessarily eigenstates (scars) of a perturbatively close Hamiltonian. Given any metastable eigenstate of a Hamiltonian, in the presence of perturbations, we prove the presence of prethermal behavior: Local correlation functions decay at a rate bounded by a timescale nonperturbatively long in the inverse metastability radius, rather than Fermi’s golden rule. Inspired by this general theory, we prove that the lifetime of the false vacuum in certain d</a:mi></a:math>-dimensional quantum models grows at least as fast as <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mi>exp</c:mi><c:mo stretchy=\"false\">(</c:mo><c:msup><c:mi>ε</c:mi><c:mrow><c:mo>−</c:mo><c:mi>d</c:mi></c:mrow></c:msup><c:mo stretchy=\"false\">)</c:mo></c:math>, where <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:mi>ε</g:mi><g:mo stretchy=\"false\">→</g:mo><g:mn>0</g:mn></g:math> is the relative energy density of the false vacuum; this lower bound matches, for the first time, explicit calculations using quantum field theory. We identify metastable states at finite energy density in the PXP model, along with exponentially many metastable states in “helical” spin chains and the two-dimensional Ising model. Our inherently quantum formalism reveals precise connections between many problems, including prethermalization, robust quantum scars, and quantum nucleation theory, and applies to systems without known semiclassical and/or field-theoretic limits. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20161,"journal":{"name":"Physical Review X","volume":"18 1","pages":""},"PeriodicalIF":12.5,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660526","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}
引用次数: 0
Domain-Wall Enhanced Pyroelectricity
IF 12.5 1区 物理与天体物理
Physical Review X Pub Date : 2025-03-18 DOI: 10.1103/physrevx.15.011063
Ching-Che Lin, Yihao Hu, Jaegyu Kim, Djamila Lou, Ashwath Bhat, Pravin Kavle, Tae Yeon Kim, Chris Dames, Shi Liu, Lane W. Martin
{"title":"Domain-Wall Enhanced Pyroelectricity","authors":"Ching-Che Lin, Yihao Hu, Jaegyu Kim, Djamila Lou, Ashwath Bhat, Pravin Kavle, Tae Yeon Kim, Chris Dames, Shi Liu, Lane W. Martin","doi":"10.1103/physrevx.15.011063","DOIUrl":"https://doi.org/10.1103/physrevx.15.011063","url":null,"abstract":"Ferroelectric domain walls are not just static geometric boundaries between polarization domains; they are, in fact, dynamic and functional interfaces with the potential for diverse technological applications. While the roles of ferroelectric domain walls in dielectric and piezoelectric responses are better understood, their impact on pyroelectric response remains underexplored. Here, the pyroelectric response of (001)-, (101)-, and (111)-oriented epitaxial heterostructures of the tetragonal ferroelectric PbZr</a:mi></a:mrow>0.2</a:mn></a:mrow></a:msub>Ti</a:mi></a:mrow>0.8</a:mn></a:mrow></a:msub>O</a:mi></a:mrow>3</a:mn></a:mrow></a:msub></a:mrow></a:math> is probed. These differently oriented heterostructures exhibit the same type of 90° ferroelastic domain walls, but their geometry and density vary with orientation. In turn, piezoresponse force microscopy and direct pyroelectric measurements reveal that (111)-oriented heterostructures exhibit both the highest density of domain walls and pyroelectric coefficients. By varying the thickness of these (111)-oriented heterostructures (from 100 to 280 nm), the density of domain walls can be varied, and a direct correlation between domain-wall density and pyroelectric coefficients is found. Molecular-dynamics simulations confirm these findings and reveal a novel domain-wall contribution to pyroelectric response in that the volume of the material in or near the domain walls exhibits a significantly higher pyroelectric coefficient as compared to the bulk of the domains. Analysis suggests that the domain-wall material has a higher responsivity of the polarization to both external fields and temperature. This study sheds light on the microscopic origin of domain-wall contributions to pyroelectricity and provides a pathway to controlling this effect. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20161,"journal":{"name":"Physical Review X","volume":"12 1","pages":""},"PeriodicalIF":12.5,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143653786","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}
引用次数: 0
Growth Rate of Self-Sustained QED Cascades Induced by Intense Lasers
IF 12.5 1区 物理与天体物理
Physical Review X Pub Date : 2025-03-18 DOI: 10.1103/physrevx.15.011062
A. Mercuri-Baron, A. A. Mironov, C. Riconda, A. Grassi, M. Grech
{"title":"Growth Rate of Self-Sustained QED Cascades Induced by Intense Lasers","authors":"A. Mercuri-Baron, A. A. Mironov, C. Riconda, A. Grassi, M. Grech","doi":"10.1103/physrevx.15.011062","DOIUrl":"https://doi.org/10.1103/physrevx.15.011062","url":null,"abstract":"It was suggested [] that an avalanche of electron-positron pairs can be triggered in the laboratory by a standing wave generated by intense laser fields. Here, we present a general solution to the long-standing problem of the avalanche growth rate calculation. We provide a simple formula that accounts for the damping of the growth rate due to pair and photon migration from the region of prolific generation. We apply our model to a variety of 3D field configurations including focused laser beams and show that (i) the particle yield for the full range of intensity able to generate an avalanche can be predicted, (ii) a critical intensity threshold due to migration is identified, and (iii) the effect of migration is negligible at a higher intensity and the local growth rate dominates. Excellent agreement with Monte Carlo and self-consistent particle-in-cell simulations is shown. The growth rate calculation allows us to predict when abundant pair production will induce a backreaction on the generating field due to plasma collective effects and screening. Our model can be applied to study the generation of electron-positron pair avalanches in realistic fields to plan future experiments at ultrahigh-intensity laser facilities. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20161,"journal":{"name":"Physical Review X","volume":"22 1","pages":""},"PeriodicalIF":12.5,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143653787","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}
引用次数: 0
Rhythmic Soliton Interactions for Integrated Dual-Microcomb Spectroscopy
IF 12.5 1区 物理与天体物理
Physical Review X Pub Date : 2025-03-17 DOI: 10.1103/physrevx.15.011061
Zihao Wang, Yifei Wang, Baoqi Shi, Chen Shen, Wei Sun, Yulei Ding, Changxi Yang, Junqiu Liu, Chengying Bao
{"title":"Rhythmic Soliton Interactions for Integrated Dual-Microcomb Spectroscopy","authors":"Zihao Wang, Yifei Wang, Baoqi Shi, Chen Shen, Wei Sun, Yulei Ding, Changxi Yang, Junqiu Liu, Chengying Bao","doi":"10.1103/physrevx.15.011061","DOIUrl":"https://doi.org/10.1103/physrevx.15.011061","url":null,"abstract":"Soliton waves are sustained by a self-created index potential well, and their interactions occur when the potential well is invaded by other solitons. The interactions are important to soliton compounds in plasma, Bose-Einstein condensation, and optical systems. In optical microresonators, interactions between counterpropagating (CP) solitons can lead to Vernier frequency locking (VFL), which is invaluable for dual-comb applications. Here, we synthesize CP solitons with VFL in an integrated silicon nitride microresonator and characterize the rhythmic soliton interaction dynamics. Seconds-long mutual coherence between solitons arises passively from the interactions. The interactions also cause the solitons to oscillate periodically. This temporal motion is discerned by frequency-domain measurements of the instantaneous frequency changes and microcomb sidebands. A theory is derived to describe the sideband strength and leveraged to retrieve the motion trajectory. The complex soliton motion trajectory is further measured by optical cross-correlation using a CP soliton trimer state. We further prove that precise dual-comb spectroscopy with a single interferogram and an acquisition time of 0.6</a:mn></a:mtext></a:mtext>μ</a:mi>s</a:mi></a:mrow></a:math> is feasible using these solitons, but the temporal motion limits the dynamic range. Our work establishes the rhythmic soliton interaction dynamics and reveals the characteristics of VFL solitons in the silicon nitride platform, which can be used to guide the design of integrated dual-comb systems. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20161,"journal":{"name":"Physical Review X","volume":"42 1","pages":""},"PeriodicalIF":12.5,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143635097","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}
引用次数: 0
Room-Temperature Magnetoelectric Switching and Magnetoelectric Memory Driven by Gate Voltage
IF 12.5 1区 物理与天体物理
Physical Review X Pub Date : 2025-03-14 DOI: 10.1103/physrevx.15.011060
Yang Cheng, Teng Xu, Di Tian, Xing He, Yiqing Dong, Hao Bai, Le Zhao, Haonan Jin, Shilei Zhang, Weibin Li, Manuel Valvidares, Pu Yu, Wanjun Jiang
{"title":"Room-Temperature Magnetoelectric Switching and Magnetoelectric Memory Driven by Gate Voltage","authors":"Yang Cheng, Teng Xu, Di Tian, Xing He, Yiqing Dong, Hao Bai, Le Zhao, Haonan Jin, Shilei Zhang, Weibin Li, Manuel Valvidares, Pu Yu, Wanjun Jiang","doi":"10.1103/physrevx.15.011060","DOIUrl":"https://doi.org/10.1103/physrevx.15.011060","url":null,"abstract":"Electric-field control of magnetism is one of the most promising routes for developing the energy-efficient magnetoresistive random access memory and spin-logic devices. Of particular interest is the electric-field-induced 180° perpendicular magnetization switching, which currently remains challenging. Here, we experimentally demonstrate the electric-field switching of perpendicular magnetization in a ferrimagnet FeTb in the absence of external magnetic fields. By utilizing ionic liquid gating at room temperature, the ferrimagnetic order can be reversibly switched as a result of the hydrogen injection or extraction under positive or negative gate voltages. Specifically, the hydrogen content pronouncedly modifies the spin and orbital magnetic moments of the Tb sublattice, which subsequently influences the relative magnitude and/or direction of the Fe and Tb sublattice magnetizations, resulting in the switching of ferrimagnetic order. More importantly, we demonstrate a prototype room-temperature three-terminal magnetoelectric memory device by incorporating the giant magnetoresistance effect with electric-field controllable ferrimagnetism. Our results reveal the prosperous aspects of ionic gating for enabling the electric-field-controllable magnetoelectric memory or logic devices. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20161,"journal":{"name":"Physical Review X","volume":"183 1","pages":""},"PeriodicalIF":12.5,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143627381","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}
引用次数: 0
Hydrodynamics and the Eigenstate Thermalization Hypothesis
IF 12.5 1区 物理与天体物理
Physical Review X Pub Date : 2025-03-14 DOI: 10.1103/physrevx.15.011059
Luca Capizzi, Jiaozi Wang, Xiansong Xu, Leonardo Mazza, Dario Poletti
{"title":"Hydrodynamics and the Eigenstate Thermalization Hypothesis","authors":"Luca Capizzi, Jiaozi Wang, Xiansong Xu, Leonardo Mazza, Dario Poletti","doi":"10.1103/physrevx.15.011059","DOIUrl":"https://doi.org/10.1103/physrevx.15.011059","url":null,"abstract":"The eigenstate thermalization hypothesis (ETH) describes the properties of diagonal and off-diagonal matrix elements of local operators in the eigenenergy basis. In this work, we propose a relation between (i) the singular behavior of the off-diagonal part of ETH at small energy differences and (ii) the smooth profile of the diagonal part of ETH as a function of the energy density. We establish this connection from the decay of the autocorrelation functions of local operators, which is constrained by the presence of local conserved quantities whose evolution is described by hydrodynamics. We corroborate our predictions through numerical simulations of two distinct nonintegrable spin-1 Ising models, exhibiting diffusive and superdiffusive transport behaviors. The simulations are performed using dynamical quantum typicality up to 18 spins, for both infinite- and finite-temperature regimes. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20161,"journal":{"name":"Physical Review X","volume":"19 1","pages":""},"PeriodicalIF":12.5,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143635197","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}
引用次数: 0
Noninvertible Symmetry-Protected Topological Order in a Group-Based Cluster State
IF 12.5 1区 物理与天体物理
Physical Review X Pub Date : 2025-03-13 DOI: 10.1103/physrevx.15.011058
Christopher Fechisin, Nathanan Tantivasadakarn, Victor V. Albert
{"title":"Noninvertible Symmetry-Protected Topological Order in a Group-Based Cluster State","authors":"Christopher Fechisin, Nathanan Tantivasadakarn, Victor V. Albert","doi":"10.1103/physrevx.15.011058","DOIUrl":"https://doi.org/10.1103/physrevx.15.011058","url":null,"abstract":"Despite growing interest in beyond-group symmetries in quantum condensed matter systems, there are relatively few microscopic lattice models explicitly realizing these symmetries, and many phenomena have yet to be studied at the microscopic level. We introduce a one-dimensional stabilizer Hamiltonian composed of group-based Pauli operators whose ground state is a G</a:mi>×</a:mo>Rep</a:mi>(</a:mo>G</a:mi>)</a:mo></a:math>-symmetric state: the <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:mi>G</e:mi></e:math>-cluster state introduced by Brell []. We show that this state lies in a symmetry-protected topological (SPT) phase protected by <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:mi>G</g:mi><g:mo>×</g:mo><g:mi>Rep</g:mi><g:mo stretchy=\"false\">(</g:mo><g:mi>G</g:mi><g:mo stretchy=\"false\">)</g:mo></g:math> symmetry, distinct from the symmetric product state by a duality argument. We identify several signatures of SPT order, namely, protected edge modes, string order parameters, and topological response. We discuss how <k:math xmlns:k=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><k:mi>G</k:mi></k:math>-cluster states may be used as a universal resource for measurement-based quantum computation, explicitly working out the case where <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><m:mi>G</m:mi></m:math> is a semidirect product of Abelian groups. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20161,"journal":{"name":"Physical Review X","volume":"16 1","pages":""},"PeriodicalIF":12.5,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143618731","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}
引用次数: 0
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