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Recently introduced dual unitary brickwork circuits have been recognised as paradigmatic exactly solvable quantum chaotic many-body systems with tunable degree of ergodicity and mixing. Here we show that regularity of the circuit lattice is…

统计力学 · 物理学 2025-07-21 Yusuf Kasim , Tomaž Prosen

Dual-unitary brickwork circuits are an exactly-solvable model for many-body chaotic quantum systems, based on 2-site gates which are unitary in both the time and space directions. Prosen has recently described an alternative model called…

量子物理 · 物理学 2024-07-31 Pieter W. Claeys , Austen Lamacraft , Jamie Vicary

Quantum dynamics with local interactions in lattice models display rich physics, but is notoriously hard to study. Dual-unitary circuits allow for exact answers to interesting physical questions in clean or disordered one- and…

量子物理 · 物理学 2024-02-21 Xie-Hang Yu , Zhiyuan Wang , Pavel Kos

We extend the concept of dual unitary quantum gates to quantum lattice models in $2 + 1$ dimensions, by introducing and studying ternary unitary four-particle gates, which are unitary in time and both spatial dimensions. When used as…

统计力学 · 物理学 2023-03-07 Richard Milbradt , Lisa Scheller , Christopher Aßmus , Christian B. Mendl

We consider one dimensional quantum circuits of the brickwork type, where the fundamental quantum gate is dual unitary. Such models are solvable: the dynamical correlation functions of the infinite temperature ensemble can be computed…

量子物理 · 物理学 2022-07-20 Márton Borsi , Balázs Pozsgay

We devise tractable models of unitary quantum many-body dynamics on tree graphs, as a first step towards a deeper understanding of dynamics in non-Euclidean spaces. To this end, we first demonstrate how to construct strictly local quantum…

量子物理 · 物理学 2025-08-29 Oliver Breach , Benedikt Placke , Pieter W. Claeys , S. A. Parameswaran

Recent years have seen significant advances, both theoretical and experimental, in our understanding of quantum many-body dynamics. Given this problem's high complexity, it is surprising that a substantial amount of this progress can be…

统计力学 · 物理学 2026-04-21 Bruno Bertini , Pieter W. Claeys , Tomaž Prosen

We devise a generic recipe for constructing $D$-dimensional lattice models whose $d$-dimensional boundary states, located on surfaces, hinges, corners, and so forth, can be obtained exactly. The solvability is rooted in the underlying…

介观与纳米尺度物理 · 物理学 2018-06-20 Flore K. Kunst , Guido van Miert , Emil J. Bergholtz

Dual-unitary quantum circuits have recently attracted attention as an analytically tractable model of many-body quantum dynamics. Consisting of a 1+1D lattice of 2-qudit gates arranged in a 'brickwork' pattern, these models are defined by…

量子物理 · 物理学 2025-02-05 Tom Holden-Dye , Lluis Masanes , Arijeet Pal

We present a generic and systematic approach for constructing D-dimensional lattice models with exactly solvable d-dimensional boundary states localized to corners, edges, hinges and surfaces. These solvable models represent a class of…

介观与纳米尺度物理 · 物理学 2019-02-20 Flore K. Kunst , Guido van Miert , Emil J. Bergholtz

Dual-unitary quantum circuits can be used to construct 1+1 dimensional lattice models for which dynamical correlations of local observables can be explicitly calculated. We show how to analytically construct classes of dual-unitary circuits…

量子物理 · 物理学 2021-03-16 Pieter W. Claeys , Austen Lamacraft

Quantum many-body scars enable persistent non-ergodic dynamics in otherwise thermalizing systems, yet their stabilization typically relies on fine-tuned initial states or engineered Hamiltonian perturbations. Here we show that lattice…

量子气体 · 物理学 2026-05-08 Erick Parra Verde , Kevin P. Mours , Johannes Zeiher , Ana Hudomal , Jad C. Halimeh

Gauging and duality transformations, two of the most useful tools in many-body physics, are shown to be equivalent up to constant depth quantum circuits in the case of one-dimensional quantum lattice models. This is demonstrated by making…

We consider a class of quantum lattice models in $1+1$ dimensions represented as local quantum circuits that enjoy a particular "dual-unitarity" property. In essence, this property ensures that both the evolution "in time" and that "in…

统计力学 · 物理学 2019-11-26 Bruno Bertini , Pavel Kos , Tomaz Prosen

Interacting many-body systems with explicitly accessible spatio-temporal correlation functions are extremely rare, especially in the absence of integrability. Recently, we identified a remarkable class of such systems and termed them…

统计力学 · 物理学 2021-02-11 Pavel Kos , Bruno Bertini , Tomaž Prosen

We introduce quantum dimer models on lattices made of corner-sharing triangles. These lattices includes the kagome lattice and can be defined in arbitrary geometry. They realize fully disordered and gapped dimer-liquid phase with…

强关联电子 · 物理学 2011-07-19 G. Misguich , D. Serban , V. Pasquier

In the worldline formalism, scalar Quantum Electrodynamics on a 2-dimensional lattice is related to the areas of closed loops on this lattice. We exploit this relationship in order to determine the general structure of the moments of the…

数学物理 · 物理学 2017-06-23 Thomas Epelbaum , Francois Gelis , Bin Wu

Quantum circuits -- built from local unitary gates and local measurements -- are a new playground for quantum many-body physics and a tractable setting to explore universal collective phenomena far-from-equilibrium. These models have shed…

量子物理 · 物理学 2024-01-12 Matthew P. A. Fisher , Vedika Khemani , Adam Nahum , Sagar Vijay

We introduce a family of non-integrable 1D lattice models that feature robust periodic revivals under a global quench from certain initial product states, thus generalizing the phenomenon of many-body scarring recently observed in Rydberg…

统计力学 · 物理学 2019-07-24 Kieran Bull , Ivar Martin , Z. Papić

We construct a family of one-dimensional (1D) quantum lattice models based on $G$-graded unitary fusion category $\mathcal{C}_G$. This family realize an interpolation between the anyon-chain models and edge models of 2D symmetry-protected…

强关联电子 · 物理学 2023-01-18 Shang-Qiang Ning , Bin-Bin Mao , Chenjie Wang
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