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Here we show how the Minimally Entangled States (MES) of a 2d system with topological order can be identified using the geometric measure of entanglement. We show this by minimizing this measure for the doubled semion, doubled Fibonacci and…

Strongly Correlated Electrons · Physics 2014-11-12 Oliver Buerschaper , Artur Garcia-Saez , Roman Orus , Tzu-Chieh Wei

The non-Abelian topological order has attracted a lot of attention for its fundamental importance and exciting prospect of topological quantum computation. However, explicit demonstration or identification of the non-Abelian states and the…

Strongly Correlated Electrons · Physics 2015-10-14 W. Zhu , S. S. Gong , F. D. M. Haldane , D. N. Sheng

We generalize the method introduced in Phys. Rev. B 101, 041108 (2020) of extracting information about topological order from the ground state of a strongly correlated two-dimensional system represented by an infinite projected entangled…

Strongly Correlated Electrons · Physics 2021-01-04 Anna Francuz , Jacek Dziarmaga

We study topological properties of quasi-particle states in the non-Abelian quantum Hall states. We apply a skein-theoretic method to the Read--Rezayi state whose effective theory is the SU(2)_K Chern--Simons theory. As a generalization of…

Quantum Physics · Physics 2008-06-09 Kazuhiro Hikami

Topological orders can be used as media for topological quantum computing --- a promising quantum computation model due to its invulnerability against local errors. Conversely, a quantum simulator, often regarded as a quantum computing…

Strongly Correlated Electrons · Physics 2017-03-01 Keren Li , Yidun Wan , Ling-Yan Hung , Tian Lan , Guilu Long , Dawei Lu , Bei Zeng , Raymond Laflamme

I propose that non-Abelian topological order can emerge from the organization of quantum particles into identical indistinguishable copies of the same quantum many-body state. Quantum indistinguishability (symmetrization) of the…

Strongly Correlated Electrons · Physics 2014-04-23 Belén Paredes

We present a detailed analysis of bi-partite entanglement in the non-Abelian Moore-Read fractional quantum Hall state of bosons and fermions on the torus. In particular, we show that the entanglement spectra can be decomposed into intricate…

Strongly Correlated Electrons · Physics 2012-01-20 Zhao Liu , Emil J. Bergholtz , Heng Fan , Andreas M. Laeuchli

A highly coveted goal is to realize emergent non-Abelian gauge theories and their anyonic excitations, which encode decoherence-free quantum information. While measurements in quantum devices provide new hope for scalably preparing such…

Quantum Physics · Physics 2023-09-19 Nathanan Tantivasadakarn , Ruben Verresen , Ashvin Vishwanath

We further develop an approach to identify the braiding statistics associated to a given fractional quantum Hall state through adiabatic transport of quasiparticles. This approach is based on the notion of adiabatic continuity between…

Mesoscale and Nanoscale Physics · Physics 2015-03-19 John Flavin , Alexander Seidel

Topologically ordered quantum matter exhibits intriguing long-range patterns of entanglement, which reveal themselves in subsystem entropies. However, measuring such entropies, which can be used to certify topological order, on large…

Quantum Physics · Physics 2024-08-26 Robert Ott , Torsten V. Zache , Nishad Maskara , Mikhail D. Lukin , Peter Zoller , Hannes Pichler

The string-net approach by Levin and Wen and the local unitary transformation approach by Chen, Gu and Wen provided ways to systematically label non-chiral topological orders in 2D. In those approaches, different topologically ordered…

Strongly Correlated Electrons · Physics 2014-01-28 Fangzhou Liu , Zhenghan Wang , Yi-Zhuang You , Xiao-Gang Wen

Symmetry-resolved entanglement entropy provides a powerful framework for probing the internal structure of quantum many-body states by decomposing entanglement into contributions from distinct symmetry sectors. In this work, we apply matrix…

Strongly Correlated Electrons · Physics 2026-05-08 Mark J. Arildsen , Valentin Crépel , Nicolas Regnault , Benoit Estienne

Quantum entanglement is a particularly useful characterization of topological orders which lack conventional order parameters. In this work, we study the entanglement in topologically ordered states between two arbitrary spatial regions,…

Strongly Correlated Electrons · Physics 2023-08-01 Chao Yin , Shang Liu

Topologically ordered phases are gapped states, defined by the properties of excitations when taken around one another. Here we demonstrate a method to extract the statistics and braiding of excitations, given just the set of ground-state…

Strongly Correlated Electrons · Physics 2012-07-04 Yi Zhang , Tarun Grover , Ari Turner , Masaki Oshikawa , Ashvin Vishwanath

The topological entanglement entropy (TEE) is a robust measurement of the quantum many-body state with topological order. In fractional quantum Hall (FQH) state, it has a connection to the quantum dimension of the state itself and its…

Strongly Correlated Electrons · Physics 2018-01-30 Na Jiang , Qi Li , Zheng Zhu , Zi-Xiang Hu

The ground states encode the information of the topological phases of a 2-dimensional system, which makes them crucial in determining the associated topological quantum field theory (TQFT). Most numerical methods for detecting the TQFT…

Strongly Correlated Electrons · Physics 2022-12-21 Zhuan Li , Roger S. K. Mong

Topologically ordered phases of matter can be characterized by the presence of a universal, constant contribution to the entanglement entropy known as the topological entanglement entropy (TEE). The TEE can been calculated for Abelian…

Strongly Correlated Electrons · Physics 2020-07-13 Ramanjit Sohal , Bo Han , Luiz H. Santos , Jeffrey C. Y. Teo

We perform an exact diagonalization study of the topological order in topological flat band models through calculating entanglement entropy and spectra of low energy states. We identify multiple independent minimal entangled states, which…

Strongly Correlated Electrons · Physics 2013-08-20 W. Zhu , D. N. Sheng , F. D. M. Haldane

Topological entanglement entropy (TEE) is a key diagnostic of topological order, allowing to detect the presence of Abelian or non-Abelian anyons. However, there are currently no protocols to measure TEE in condensed matter systems. Here,…

Mesoscale and Nanoscale Physics · Physics 2023-07-19 Sarath Sankar , Eran Sela , Cheolhee Han

Topological phases exhibit unconventional order that cannot be detected by any local order parameter. In the framework of Projected Entangled Pair States(PEPS), topological order is characterized by an entanglement symmetry of the local…

Strongly Correlated Electrons · Physics 2021-10-13 Wen-Tao Xu , Norbert Schuch
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