Exact emergent higher-form symmetries in bosonic lattice models

SD Pace, XG Wen - Physical Review B, 2023 - APS
Although condensed matter systems usually do not have higher-form symmetries, we show
that, unlike 0-form symmetry, higher-form symmetries can emerge as exact symmetries at …

Edge state, localization length, and critical exponent from survival probability in topological waveguides

LC Wang, Y Chen, M Gong, F Yu, QD Chen, ZN Tian… - Physical Review Letters, 2022 - APS
Edge states in topological phase transitions have been observed in various platforms. To
date, verification of the edge states and the associated topological invariant are mostly …

Generating function for projected entangled-pair states

WL Tu, L Vanderstraeten, N Schuch, HY Lee… - PRX Quantum, 2024 - APS
Diagrammatic summation is a common bottleneck in modern applications of projected
entangled-pair states, especially in computing low-energy excitations of a two-dimensional …

Enhancing detection of topological order by local error correction

I Cong, N Maskara, MC Tran, H Pichler… - Nature …, 2024 - nature.com
The exploration of topologically-ordered states of matter is a long-standing goal at the
interface of several subfields of the physical sciences. Such states feature intriguing physical …

Replica topological order in quantum mixed states and quantum error correction

Z Li, RSK Mong - arXiv preprint arXiv:2402.09516, 2024 - arxiv.org
Topological phases of matter offer a promising platform for quantum computation and
quantum error correction. Nevertheless, unlike its counterpart in pure states, descriptions of …

Topological fracton quantum phase transitions by tuning exact tensor network states

GY Zhu, JY Chen, P Ye, S Trebst - Physical Review Letters, 2023 - APS
Gapped fracton phases of matter generalize the concept of topological order and broaden
our fundamental understanding of entanglement in quantum many-body systems. However …

Excitation spectrum of spin-1 Kitaev spin liquids

YH Chen, J Genzor, YB Kim, YJ Kao - Physical Review B, 2022 - APS
We study the excitation spectrum of the spin-1 Kitaev model using the symmetric tensor
network. By evaluating the virtual order parameters defined on the virtual Hilbert space in …

Critical behavior of the Fredenhagen-Marcu order parameter at topological phase transitions

WT Xu, F Pollmann, M Knap - arXiv preprint arXiv:2402.00127, 2024 - arxiv.org
A nonlocal string order parameter detecting topological phase transitions has been
proposed by Fredenhagen and Marcu (FM). In this work, we find that the FM string order …

Learning algorithm reflecting universal scaling behavior near phase transitions

N Maskara, M Buchhold, M Endres… - Physical Review …, 2022 - APS
Machine-learning-inspired techniques have emerged as a new paradigm for analysis of
phase transitions in quantum matter. In this work, we introduce a supervised learning …

Quantifying measurement-induced quantum-to-classical crossover using an open-system entanglement measure

C Carisch, A Romito, O Zilberberg - Physical Review Research, 2023 - APS
The evolution of a quantum system subject to measurements can be described by stochastic
quantum trajectories of pure states. Instead, the ensemble average over trajectories is a …