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相关论文: Universal Finite-Size Scaling around Topological Q…

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Amorphous systems have rapidly gained promise as novel platforms for topological matter. In this work we establish a scaling theory of amorphous topological phase transitions driven by the density of lattice points in two dimensions. By…

介观与纳米尺度物理 · 物理学 2020-01-22 Isac Sahlberg , Alex Westström , Kim Pöyhönen , Teemu Ojanen

We investigate the application of conformable derivatives to model critical phenomena near continuous phase transitions. By incorporating a deformation parameter into the differential structure, we derive unified expressions for…

统计力学 · 物理学 2026-01-13 José Weberszpil , Ralf Metzler

For quantifying the universal properties of the chiral phase transition in QCD through numerical calculations on a discrete space-time lattice, one needs to perform controlled extrapolations to the continuum and infinite-volume limits…

高能物理 - 格点 · 物理学 2025-08-28 Sabarnya Mitra , Frithjof Karsch

We consider systems whose steady-states exhibit a nonequilibrium phase transition from an active state to one -among an infinite number- absorbing state, as some control parameter is varied across a threshold value. The pair contact…

统计力学 · 物理学 2009-11-07 F. van Wijland

In this chapter we discuss aspects of the quantum critical behavior that occurs at a quantum phase transition separating a topological phase from a conventionally ordered one. We concentrate on a family of quantum lattice models, namely…

强关联电子 · 物理学 2015-05-14 Claudio Castelnovo , Simon Trebst , Matthias Troyer

To understand the finite-size-scaling properties of phases transitions in classical and quantum models in the presence of quenched disorder, it has proven to be fruitful to introduce the notion of a finite-size-pseudo-critical point in each…

无序系统与神经网络 · 物理学 2017-01-03 Cecile Monthus

Thermal and magnetic effects in a system consisting of thin layers of coupled Ising spins with $S=1/2$ and $S=1$ are considered. The specific heat and the correlation length display maxima at two different temperatures. It is discussed in…

统计力学 · 物理学 2016-08-31 Dragi Karevski , Malte Henkel

A microcanonical finite-size scaling ansatz is discussed. It exploits the existence of a well-defined transition point for systems of finite size in the microcanonical ensemble. The best data collapse obtained for small systems yields…

统计力学 · 物理学 2009-11-10 Michel Pleimling , Hans Behringer , Alfred Huller

We present the finite-size scaling theory of one-dimensional quantum critical systems in the presence of boundaries. While the finite-size spectrum in the conformal limit, namely of a conformal field theory with conformally invariant…

强关联电子 · 物理学 2024-10-02 Yifan Liu , Haruki Shimizu , Atsushi Ueda , Masaki Oshikawa

The quantum Hall effect is one of the most extensively studied topological effects in solid state physics. The transitions between different quantum Hall states exhibit critical phenomena described by universal critical exponents. Numerous…

无序系统与神经网络 · 物理学 2023-04-14 Keith Slevin , Tomi Ohtsuki

Recently, the concept of geometric renormalization group provides a good approach for studying the structural symmetry and functional invariance of complex networks. Along this line, we systematically investigate the finite-size scaling of…

物理与社会 · 物理学 2021-09-15 Dan Chen , Housheng Su , Xiaofan Wang , Gui-Jun Pan , Guanrong Chen

We discuss a certain class of two-dimensional quantum systems which exhibit conventional order and topological order, as well as two-dimensional quantum critical points separating these phases. All of the ground-state equal-time correlators…

强关联电子 · 物理学 2007-05-23 Eddy Ardonne , Paul Fendley , Eduardo Fradkin

We analyze the finite size corrections to entanglement in quantum critical systems. By using conformal symmetry and density functional theory, we discuss the structure of the finite size contributions to a general measure of ground state…

量子物理 · 物理学 2009-11-13 F. C. Alcaraz , M. S. Sarandy

It is well known that in a quantum phase transition (QPT), entanglement remains short ranged [Osterloh et al., Nature 416 608-610 (2005)]. We ask if there is a quantum property entailing the whole system which diverges near this point.…

量子物理 · 物理学 2016-05-18 Tahereh Abad , Vahid Karimipour

This chapter describes the progress made during the past three decades in the finite size scaling analysis of the critical phenomena of the Anderson transition. The scaling theory of localisation and the Anderson model of localisation are…

介观与纳米尺度物理 · 物理学 2015-05-18 Bernhard Kramer , Angus MacKinnon , Tomi Ohtsuki , Keith Slevin

Finite size scaling for a first order phase transition where a continuous symmetry is broken is developed using an approximation of Gaussian probability distributions with a phenomenological "degeneracy" factor included. Predictions are…

计算物理 · 物理学 2019-03-27 Jiahao Xu , Shan-Ho Tsai , D. P. Landau , K. Binder

The study of Finite Size Effects in Quantum Field Theory allows the extraction of precious perturbative and non-perturbative information. The use of scaling functions can connect the particle content (scattering theory formulation) of a QFT…

高能物理 - 理论 · 物理学 2017-08-23 Francesco Ravanini

We generalize and apply the key elements of the Kibble-Zurek framework of nonequilibrium phase transitions to study the non-equilibrium critical cumulants near the QCD critical point. We demonstrate the off-equilibrium critical cumulants…

高能物理 - 唯象学 · 物理学 2018-03-14 Swagato Mukherjee , Raju Venugopalan , Yi Yin

We study the phase diagram of a class of models in which a generalized cluster interaction can be quenched by Ising exchange interaction and external magnetic field. We characterize the various phases through winding numbers. They may be…

统计力学 · 物理学 2017-09-06 Wei Nie , Feng Mei , Luigi Amico , Leong Chuan Kwek

It remains an open problem if there are universal scaling functions across a topological quantum phase transition (TPT) without an order parameter, but with extended Fermi surfaces (FS ). Here, we study a simple system of fermions hopping…

强关联电子 · 物理学 2017-07-12 Fadi Sun , Jinwu Ye