SciPost physics core最新文献

Rapid measurements and phase transition detections made simple by AC-GANs AC-GAN 使快速测量和相变检测变得简单

SciPost physics core Pub Date : 2024-06-11 DOI: 10.21468/scipostphyscore.7.2.035

Jiewei Ding, Ho-Kin Tang, Wing Chi Yu

引用次数: 0

Anyons in a tight wave-guide and the Tonks-Girardeau gas 紧波导中的任意粒子和唐克斯-吉拉多气体

SciPost physics core Pub Date : 2023-11-15 DOI: 10.21468/scipostphyscore.6.4.079

Nicolas Rougerie, Qiyun Yang

{"title":"Anyons in a tight wave-guide and the Tonks-Girardeau gas","authors":"Nicolas Rougerie, Qiyun Yang","doi":"10.21468/scipostphyscore.6.4.079","DOIUrl":"https://doi.org/10.21468/scipostphyscore.6.4.079","url":null,"abstract":"We consider a many-body system of 2D anyons, free quantum particles with general statistics parameter alpha &#8712; ]0,2[ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:mrow><mml:mi>α</mml:mi><mml:mo>∈</mml:mo><mml:mo stretchy=\"false\" form=\"postfix\">]</mml:mo><mml:mn>0</mml:mn><mml:mo>,</mml:mo><mml:mn>2</mml:mn><mml:mo stretchy=\"false\" form=\"prefix\">[</mml:mo></mml:mrow></mml:math> . In the magnetic gauge picture they are described as bosons attached to Aharonov-Bohm fluxes of intensity 2pi alpha <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:mrow><mml:mn>2</mml:mn><mml:mi>π</mml:mi><mml:mi>α</mml:mi></mml:mrow></mml:math> , generating long-range magnetic forces. A dimensional reduction to 1D is obtained by imposing a strongly anisotropic trapping potential. This freezes the motion in the direction of strong trapping, leading to 1D physics along the weak direction. The latter is governed to leading order by the Tonks-Girardeau model of impenetrable bosons, independently of alpha <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:mi>α</mml:mi></mml:math> .","PeriodicalId":471523,"journal":{"name":"SciPost physics core","volume":"8 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136227567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Entanglement dynamics with string measurement operators 弦测量算子的纠缠动力学

SciPost physics core Pub Date : 2023-11-14 DOI: 10.21468/scipostphyscore.6.4.078

Giulia Piccitto, Angelo Russomanno, Davide Rossini

引用次数: 1

Localization control born of intertwined quasiperiodicity and non-Hermiticity 局域化控制是由准周期性和非厄米性交织产生的

SciPost physics core Pub Date : 2023-11-09 DOI: 10.21468/scipostphyscore.6.4.077

Junmo Jeon, SungBin Lee

{"title":"Localization control born of intertwined quasiperiodicity and non-Hermiticity","authors":"Junmo Jeon, SungBin Lee","doi":"10.21468/scipostphyscore.6.4.077","DOIUrl":"https://doi.org/10.21468/scipostphyscore.6.4.077","url":null,"abstract":"Quasiperiodic systems are neither randomly disordered nor translationally invariant in the absence of periodic length scales. Based on their incommensurate order, novel physical properties such as critical states and self-similar wavefunctions have been actively discussed. However, in open systems generally described by the non-Hermitian Hamiltonians, it is hardly known how such quasiperiodic order would lead to new phenomena. In this work, we show that the intertwined quasiperiodicity and non-Hermiticity can give rise to striking effects: perfect delocalization of the critical and localized states to the extended states. In particular, we explore the wave function localization character in the Aubry-André-Fibonacci (AAF) model where non-reciprocal hopping phases are present. Here, the AAF model continuously interpolates the two different limits between metal to insulator transition and the critical states, and the non-Hermiticity is encoded in the hopping phase factors. Surprisingly, their interplay results in the perfect delocalization of the states, which is never allowed in quasiperiodic systems with Hermiticity. By quantifying the localization via the inverse participation ratio and the fractal dimension, we discuss that the non-Hermitian hopping phase leads to delicate control of localization characteristics of the wave function. Our work offers (1) emergent delocalization transition in quasiperiodic systems via non-Hermitian hopping phase and (2) detailed localization control of the critical states. In addition, we suggest an experimental realization of controllable localized, critical and delocalized states, using photonic crystals.","PeriodicalId":471523,"journal":{"name":"SciPost physics core","volume":" 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135242473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characteristic properties of a composite system of topological phases separated by gapped domain walls via an exactly solvable Hamiltonian model 用精确可解哈密顿模型研究由间隙畴壁分隔的拓扑相复合系统的特征性质

SciPost physics core Pub Date : 2023-11-08 DOI: 10.21468/scipostphyscore.6.4.076

Yu Zhao, Shan Huang, Hongyu Wang, Yuting Hu, Yidun Wan

{"title":"Characteristic properties of a composite system of topological phases separated by gapped domain walls via an exactly solvable Hamiltonian model","authors":"Yu Zhao, Shan Huang, Hongyu Wang, Yuting Hu, Yidun Wan","doi":"10.21468/scipostphyscore.6.4.076","DOIUrl":"https://doi.org/10.21468/scipostphyscore.6.4.076","url":null,"abstract":"In this paper, we construct an exactly solvable lattice Hamiltonian model to investigate the properties of a composite system consisting of multiple topological orders separated by gapped domain walls. There are interdomain elementary excitations labeled by a pair of anyons in different domains of this system; This system also has elementary excitations with quasiparticles in the gapped domain wall. Each set of elementary excitations corresponds to a basis of the ground states of this composite system on the torus, reflecting that the ground-state degeneracy matches the number of either set of elementary excitations. The characteristic properties of this composite system lie in the basis transformations, represented by the S <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:mi>S</mml:mi></mml:math> and T <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:mi>T</mml:mi></mml:math> matrices: The S <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:mi>S</mml:mi></mml:math> matrix encodes the mutual statistics between interdomain excitations and domain-wall quasiparticles, and the T <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:mi>T</mml:mi></mml:math> matrix encapsulates the topological spins of interdomain excitations. Our model realizes a spatial counterpart of a temporal phase transition triggered by anyon condensation, bringing the abstract theory of anyon condensation into manifestable spatial interdomain excitation states.","PeriodicalId":471523,"journal":{"name":"SciPost physics core","volume":"33 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135391157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Snowmass2021 cosmic frontier white paper: Ultraheavy particle dark matter Snowmass2021宇宙前沿白皮书:超重粒子暗物质

SciPost physics core Pub Date : 2023-11-06 DOI: 10.21468/scipostphyscore.6.4.075

Daniel Carney, Nirmal Raj, Yang Bai, Joshua Berger, Carlos Blanco, Joseph Bramante, Christopher Cappiello, Maíra Dutra, Reza Ebadi, Kristi Engel, Edward Kolb, J. Patrick Harding, Jason Kumar, Gordan Krnjaic, Rafael F. Lang, Rebecca K. Leane, Benjamin V. Lehmann, Shengchao Li, Andrew J. Long, Gopolang Mohlabeng, Ibles Olcina, Elisa Pueschel, Nicholas L. Rodd, Carsten Rott, Dipan Sengupta, Bibhushan Shakya, Ronald L. Walsworth, Shawn Westerdale

{"title":"Snowmass2021 cosmic frontier white paper: Ultraheavy particle dark matter","authors":"Daniel Carney, Nirmal Raj, Yang Bai, Joshua Berger, Carlos Blanco, Joseph Bramante, Christopher Cappiello, Maíra Dutra, Reza Ebadi, Kristi Engel, Edward Kolb, J. Patrick Harding, Jason Kumar, Gordan Krnjaic, Rafael F. Lang, Rebecca K. Leane, Benjamin V. Lehmann, Shengchao Li, Andrew J. Long, Gopolang Mohlabeng, Ibles Olcina, Elisa Pueschel, Nicholas L. Rodd, Carsten Rott, Dipan Sengupta, Bibhushan Shakya, Ronald L. Walsworth, Shawn Westerdale","doi":"10.21468/scipostphyscore.6.4.075","DOIUrl":"https://doi.org/10.21468/scipostphyscore.6.4.075","url":null,"abstract":"We outline the unique opportunities and challenges in the search for “ultraheavy” dark matter candidates with masses between roughly 10 TeV and the Planck scale m_{rm pl} ≈ 10^{16} TeV. This mass range presents a wide and relatively unexplored dark matter parameter space, with a rich space of possible models and cosmic histories. We emphasize that both current detectors and new, targeted search techniques, via both direct and indirect detection, are poised to contribute to searches for ultraheavy particle dark matter in the coming decade. We highlight the need for new developments in this space, including new analyses of current and imminent direct and indirect experiments targeting ultraheavy dark matter and development of new, ultra-sensitive detector technologies like next-generation liquid noble detectors, neutrino experiments, and specialized quantum sensing techniques.","PeriodicalId":471523,"journal":{"name":"SciPost physics core","volume":"25 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135590089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 31

A normalized autoencoder for LHC triggers LHC触发器的标准化自编码器

SciPost physics core Pub Date : 2023-11-03 DOI: 10.21468/scipostphyscore.6.4.074

Barry M. Dillon, Luigi Favaro, Tilman Plehn, Peter Sorrenson, Michael Krämer

引用次数: 11

Out of equilibrium many-body expansion dynamics of strongly interacting bosons 强相互作用玻色子的非平衡多体膨胀动力学

SciPost physics core Pub Date : 2023-11-03 DOI: 10.21468/scipostphyscore.6.4.073

Rhombik Roy, Barnali Chakrabarti, Arnaldo Gammal

{"title":"Out of equilibrium many-body expansion dynamics of strongly interacting bosons","authors":"Rhombik Roy, Barnali Chakrabarti, Arnaldo Gammal","doi":"10.21468/scipostphyscore.6.4.073","DOIUrl":"https://doi.org/10.21468/scipostphyscore.6.4.073","url":null,"abstract":"We solve the Schrödinger equation from first principles to investigate the many-body effects in the expansion dynamics of one-dimensional repulsively interacting bosons released from a harmonic trap. We utilize the multiconfigurational time-dependent Hartree method for bosons (MCTDHB) to solve the many-body Schrödinger equation at high level of accuracy. The MCTDHB basis sets are explicitly time-dependent and optimised by variational principle. We probe the expansion dynamics by three key measures; time evolution of one-, two- and three-body densities. We observe when the mean-field theory results to unimodal expansion, the many-body calculation exhibits trimodal expansion dynamics. The many-body features how the initially fragmented bosons independently spreads out with time whereas the mean-field pictures the expansion of the whole cloud. We also present the three different time scale of dynamics of the inner core, outer core and the cloud as a whole. We analyze the key role played by the dynamical fragmentation during expansion. A Strong evidence of the many-body effects is presented in the dynamics of two- and three-body densities which exhibit correlation hole and pronounced delocalization effect.","PeriodicalId":471523,"journal":{"name":"SciPost physics core","volume":"45 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135819858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Extremal stringy black holes in equilibrium at first order in $alpha'$ 在$ α '$中处于一阶平衡的极端弦黑洞

SciPost physics core Pub Date : 2023-10-31 DOI: 10.21468/scipostphyscore.6.4.072

Tomás Ortín, Alejandro Ruipérez, Matteo Zatti

引用次数: 5

Resolving phase transitions with discontinuous Galerkin methods 用不连续伽辽金方法求解相变

SciPost physics core Pub Date : 2023-10-25 DOI: 10.21468/scipostphyscore.6.4.071

Eduardo Grossi, Nicolas Wink

引用次数: 14