SciPost Physics最新文献_第3页

Field theory of collinear and noncollinear magnetic order 共线和非共线磁序的场论

IF 5.5 2区物理与天体物理

SciPost Physics Pub Date : 2024-09-05 DOI: 10.21468/scipostphyslectnotes.85

Oleg Tchernyshyov

引用次数: 0

Two $T$-linear scattering-rate regimes in the triangular lattice Hubbard model 三角形晶格哈伯德模型中的两个 T$ 线性散射率机制

IF 5.5 2区物理与天体物理

SciPost Physics Pub Date : 2024-09-04 DOI: 10.21468/scipostphys.17.3.072

Jérôme Fournier, Pierre-Olivier Downey, Charles-David Hébert, Maxime Charlebois, André-Marie Tremblay

引用次数: 0

Kondo breakdown in multi-orbital Anderson lattices induced by destructive hybridization interference 破坏性杂化干扰诱发的多轨道安德森晶格中的近藤击穿

IF 5.5 2区物理与天体物理

SciPost Physics Pub Date : 2024-09-02 DOI: 10.21468/scipostphys.17.3.069

Fabian Eickhoff, Frithjof Anders

{"title":"Kondo breakdown in multi-orbital Anderson lattices induced by destructive hybridization interference","authors":"Fabian Eickhoff, Frithjof Anders","doi":"10.21468/scipostphys.17.3.069","DOIUrl":"https://doi.org/10.21468/scipostphys.17.3.069","url":null,"abstract":"In this paper we consider a multi band extension to the periodic Anderson model. We use a single site DMFT(NRG) in order to study the impact of the conduction band mediated effective hopping of the correlated electrons between the correlated orbitals onto the heavy Fermi liquid formation. Whereas the hybridization of a single impurity model with two distinct conduction bands always adds up constructively, $T_{K}propto exp(-mathrm{const}, U/(Gamma_1+Gamma_2))$, we show that this does not have to be the case in lattice models, where, in remarkable contrast, also an low-energy Fermi liquid scale $T_0propto exp(-mathrm{const}, U/(Gamma_1-Gamma_2))$ can emerge due to quantum interference effects in multi band models, where $U$ denotes the local Coulomb matrix element of the correlated orbitals and $Gamma_i$ the local hybridization strength of band $i$. At high symmetry points, heavy Fermi liquid formation is suppressed which is associated with a breakdown of the Kondo effect. This results in an asymptotically scale-invariant (i.e., power-law) spectrum of the correlated orbitals $propto|omega|^{1/3}$, indicating non-Fermi liquid properties of the quantum critical point, and a small Fermi surface including only the light quasi-particles. This orbital selective Mott phase demonstrates the possibility of metallic local criticality within the general framework of ordinary single site DMFT.","PeriodicalId":21682,"journal":{"name":"SciPost Physics","volume":"6 1","pages":""},"PeriodicalIF":5.5,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Composite subsystem symmetries and decoration of sub-dimensional excitations 复合子系统对称性和亚维激波装饰

IF 5.5 2区物理与天体物理

SciPost Physics Pub Date : 2024-09-02 DOI: 10.21468/scipostphys.17.3.071

Avi Vadali, Zongyuan Wang, Arpit Dua, Wilbur Shirley, Xie Chen

{"title":"Composite subsystem symmetries and decoration of sub-dimensional excitations","authors":"Avi Vadali, Zongyuan Wang, Arpit Dua, Wilbur Shirley, Xie Chen","doi":"10.21468/scipostphys.17.3.071","DOIUrl":"https://doi.org/10.21468/scipostphys.17.3.071","url":null,"abstract":"Flux binding is a mechanism that is well-understood for global symmetries. Given two systems, each with a global symmetry, gauging the composite symmetry instead of individual symmetries corresponds to the condensation of the composite of gauge charges belonging to individually gauged theories and the binding of the gauge fluxes. The condensed composite charge is created by a \"short\" string given by the new minimal coupling corresponding to the composite symmetry. This paper studies what happens when combined subsystem symmetries are gauged, especially when the component charges and fluxes have different sub-dimensional mobilities. We investigate $3+1$D systems with planar symmetries where, for example, the planar symmetry of a planon charge is combined with one of the planar symmetries of a fracton charge. We propose the principle of $textit{Remote Detectability}$ to determine how the fluxes bind and potentially change their mobility. This understanding can then be used to design fracton models with sub-dimensional excitations that are decorated with excitations having nontrivial statistics or non-abelian fusion rules.","PeriodicalId":21682,"journal":{"name":"SciPost Physics","volume":"11 1","pages":""},"PeriodicalIF":5.5,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Nonequilibrium quasiparticle distribution in superconducting resonators: Effect of pair-breaking photons 超导谐振器中的非平衡准粒子分布：破对光子的影响

IF 5.5 2区物理与天体物理

SciPost Physics Pub Date : 2024-09-02 DOI: 10.21468/scipostphys.17.3.070

Paul B. Fischer, Gianluigi Catelani

{"title":"Nonequilibrium quasiparticle distribution in superconducting resonators: Effect of pair-breaking photons","authors":"Paul B. Fischer, Gianluigi Catelani","doi":"10.21468/scipostphys.17.3.070","DOIUrl":"https://doi.org/10.21468/scipostphys.17.3.070","url":null,"abstract":"Many superconducting devices rely on the finite gap in the excitation spectrum of a superconductor: thanks to this gap, at temperatures much smaller than the critical one the number of excitations (quasiparticles) that can impact the device's behavior is exponentially small. Nevertheless, experiments at low temperature usually find a finite, non-negligible density of quasiparticles whose origin has been attributed to various non-equilibrium phenomena. Here, we investigate the role of photons with energy exceeding the pair-breaking threshold $2Delta$ as a possible source for these quasiparticles in superconducting resonators. Modeling the interacting system of quasiparticles, phonons, sub-gap and pair-breaking photons using a kinetic equation approach, we find analytical expressions for the quasiparticles' density and their energy distribution. Applying our theory to measurements of quality factor as function of temperature and for various readout powers, we find they could be explained by assuming a small number of photons above the pair-breaking threshold. We also show that frequency shift data can give evidence of quasiparticle heating.","PeriodicalId":21682,"journal":{"name":"SciPost Physics","volume":"24 1","pages":""},"PeriodicalIF":5.5,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Interferometric microscale measurement of refractive index at VIS and IR wavelengths 干涉微尺度测量可见光和红外波长的折射率

IF 5.5 2区物理与天体物理

SciPost Physics Pub Date : 2024-08-30 DOI: 10.21468/scipostphyscore.7.3.059

Meguya Ryu, Simonas Varapnickas, Darius Gailevicius, Domas Paipulas, Eulalia Puig Vilardell, Zahra Khajehsaeidimahabadi, Saulius Juodkazis, Junko Morikawa, Mangirdas Malinauskas

引用次数: 0

Codebase release 1.3 for HYPERTILING HYPERTILING 代码库 1.3 版

IF 5.5 2区物理与天体物理

SciPost Physics Pub Date : 2024-08-28 DOI: 10.21468/scipostphyscodeb.34-r1.3

Manuel Schrauth, Yanick Thurn, Florian Goth, Jefferson Portela, Dietmar Herdt, Felix Dusel

引用次数: 0

HYPERTILING — a high performance Python library for the generation and visualization of hyperbolic lattices HYPERTILING - 用于生成和可视化双曲网格的高性能 Python 库

IF 5.5 2区物理与天体物理

SciPost Physics Pub Date : 2024-08-28 DOI: 10.21468/scipostphyscodeb.34

Manuel Schrauth, Yanick Thurn, Florian Goth, Jefferson Portela, Dietmar Herdt, Felix Dusel

引用次数: 0

Non-invertible symmetries and higher representation theory II 不可逆对称和高级表示理论 II