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相关论文: Exploring Multifractal Critical Phases in Two-Dime…

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We propose a general framework for constructing self-dual one-dimensional quasiperiodic lattice models with arbitrary-range hoppings and multifractal behaviors. Our framework generates a broad spectrum of one dimensional quasicrystals,…

量子物理 · 物理学 2025-10-23 Wenzhi Wang , Wei Yi , Tianyu Li

We construct a two-dimensional lattice model of fermions coupled to Ising ferromagnetic critical fluctuations. Using extensive sign-problem-free quantum Monte Carlo simulations, we show that the model realizes a continuous itinerant quantum…

强关联电子 · 物理学 2017-09-29 Xiao Yan Xu , Kai Sun , Yoni Schattner , Erez Berg , Zi Yang Meng

We propose a solvable class of 1D quasiperiodic tight-binding models encompassing extended, localized, and critical phases, separated by nontrivial mobility edges. Limiting cases include the Aubry-Andr\'e model and the models of PRL 114,…

无序系统与神经网络 · 物理学 2023-11-07 Miguel Gonçalves , Bruno Amorim , Eduardo V. Castro , Pedro Ribeiro

The two-dimensional dissipative quantum XY model is applicable to the quantum-critical properties of diverse experimental systems, ranging from the superconductor to insulator transitions, ferromagnetic and antiferromagnetic transitions in…

强关联电子 · 物理学 2016-11-09 Changtao Hou , Chandra M. Varma

We consider critical eigenstates in a two dimensional quasicrystal and their evolution as a function of disorder. By exact diagonalization of finite size systems we show that the evolution of properties of a typical wave-function is…

无序系统与神经网络 · 物理学 2023-03-08 Anuradha Jagannathan , Marco Tarzia

Fluctuations can drive continuous phase transitions between two distinct ordered phases -- so-called deconfined quantum critical points (DQCPs) -- which lie beyond the Landau-Ginzburg-Wilson paradigm. Despite several theoretical predictions…

We have constructed a general theory describing the topological quantum phase transitions in 3D systems with broken inversion symmetry. While the consideration of the system's codimension generally predicts the appearance of a stable…

This article is aimed at studying the effects of the dimensional crossover (DC) on physical properties of condensed systems near phase transition and critical points. Here we consider the following problems: (1) the theoretical provisions…

软凝聚态物质 · 物理学 2025-09-24 O. V. Chalyi , E. V. Zaitseva

The contact process is a simple infection spreading model showcasing an out-of-equilibrium phase transition between a macroscopically active and an inactive phase. Such absorbing state phase transitions are often sensitive to the presence…

统计力学 · 物理学 2025-09-22 Leone V. Luzzatto , Juan Felipe Barrera López , István A. Kovács

We investigate the surface critical behavior of two-dimensional multilayered aperiodic Ising models in the extreme anisotropic limit. The system under consideration is obtained by piling up two types of layers with respectively $p$ and $q$…

统计力学 · 物理学 2016-08-31 Pierre Emmanuel Berche , Bertrand Berche

While many studies point towards the existence of many-body localization (MBL) in one dimension, the fate of higher-dimensional strongly disordered systems is a topic of current debate. The latest experiments as well as several recent…

无序系统与神经网络 · 物理学 2024-05-13 Joey Li , Amos Chan , Thorsten B. Wahl

We study multifractal properties in time evolution of a single particle subject to repeated measurements. For quantum systems, we consider circuit models consisting of local unitary gates and local projective measurements. For classical…

量子物理 · 物理学 2024-10-28 Kohei Yajima , Hisanori Oshima , Ken Mochizuki , Yohei Fuji

Eigenstate multifractality is a distinctive feature of non-interacting disordered metals close to a metal-insulator transition, whose properties are expected to extend to superconductivity. While multifractality in three dimensions (3D)…

One of the distinctive feature of the QCD phase diagram is the possible emergence of a critical endpoint. The critical region around the critical point and the path dependency of the critical exponents is investigated within effective…

高能物理 - 唯象学 · 物理学 2012-02-16 Bernd-Jochen Schaefer , Mathias Wagner

The transmission phase across a quantum dot (QD) is expected to show mesoscopic behavior, where the appearance of a phase lapse between Coulomb peaks (CPs) as a function of the gate voltage depends on the orbital parity relation between the…

介观与纳米尺度物理 · 物理学 2017-09-27 S. Takada , M. Yamamoto , C. Bäuerle , A. Ludwig , A. D. Wieck , S. Tarucha

We study the one-dimensional (1D) quantum compass model with two independent parameters by means of an exact mapping to the quantum Ising model. This allows us to uncover hidden features of the quantum phase transition in the ordinary…

强关联电子 · 物理学 2009-06-29 Erik Eriksson , Henrik Johannesson

Deconfined quantum critical point (DQCP) characterizes the continuous transition beyond Landau-Ginzburg-Wilson paradigm, occurring between two phases that exhibit distinct symmetry breaking. The debate over whether genuine DQCP exists in…

强关联电子 · 物理学 2025-11-06 Xuan Zou , Shuai Yin , Zi-Xiang Li , Hong Yao

We develop the concept of surface multifractality for localization-delocalization (LD) transitions in disordered electronic systems. We point out that the critical behavior of various observables related to wave functions near a boundary at…

介观与纳米尺度物理 · 物理学 2007-05-23 A. R. Subramaniam , I. A. Gruzberg , A. W. W. Ludwig , F. Evers , A. Mildenberger , A. D. Mirlin

We study a one-dimensional quasiperiodic system described by the off-diagonal Aubry-Andr\'{e} model and investigate its phase diagram by using the symmetry and the multifractal analysis. It was shown in a recent work ({\it Phys. Rev. B}…

无序系统与神经网络 · 物理学 2016-09-23 Tong Liu , Pei Wang , Gao Xianlong

Recent theoretical investigations have unveiled a rich structure in the quantum chromodynamics (QCD) phase diagram which consists of quark gluon plasma (QGP) and the hadronic phases but also supports the existence of a cross-over transition…

高能物理 - 唯象学 · 物理学 2014-11-20 P. K. Srivastava , S. K. Tiwari , C. P. Singh