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Majorana fermions and their generalizations to $\mathbb{Z}_n$ parafermions are considered promising building blocks of fault-tolerant quantum computers for their ability to encode quantum information nonlocally. In such topological quantum…

Quantum Physics · Physics 2025-09-05 Ali Hamed Safwan , Raditya Weda Bomantara

We introduce an exactly solvable model of interacting Majorana fermions realizing $Z_{2}$ topological order with a $Z_{2}$ fermion parity grading and lattice symmetries permuting the three fundamental anyon types. We propose a concrete…

Mesoscale and Nanoscale Physics · Physics 2015-12-16 Sagar Vijay , Timothy H. Hsieh , Liang Fu

The emergence of non-Abelian anyons from large collections of interacting elementary particles is a conceptually beautiful phenomenon with important ramifications for fault-tolerant quantum computing. Over the last few decades the field has…

Strongly Correlated Electrons · Physics 2015-09-08 Jason Alicea , Ady Stern

The study of non-Abelian Majorana zero modes advances our understanding of the fundamental physics in quantum matter, and pushes the potential applications of such exotic states to topological quantum computation. It has been shown that in…

Mesoscale and Nanoscale Physics · Physics 2014-05-02 Xiong-Jun Liu , Chris L. M. Wong , K. T. Law

Symmetry-protected non-Abelian (SPNA) statistics opens new frontiers in quantum statistics and enriches the schemes for topological quantum computing. In this work, we propose a new paradigm of SPNA statistics in one-dimensional correlated…

Strongly Correlated Electrons · Physics 2026-01-23 Hong-Yu Wang , Bao-Zong Wang , Jian-Song Hong , Xiong-Jun Liu

Fractional statistics is one of the most intriguing features of topological phases in 2D. In particular, the so-called non-Abelian statistics plays a crucial role towards realizing universal topological quantum computation. Recently, the…

Strongly Correlated Electrons · Physics 2023-12-29 Jing-Ren Zhou , Qing-Rui Wang , Chenjie Wang , Zheng-Cheng Gu

We introduce a novel class of low-dimensional topological tight-binding models that allow for bound states that are fractionally charged fermions and exhibit non-Abelian braiding statistics. The proposed model consists of a double (single)…

Mesoscale and Nanoscale Physics · Physics 2013-04-10 Jelena Klinovaja , Daniel Loss

Majorana zero modes are quasiparticles that hold promise as building blocks for topological quantum computing. However, the litmus test for their detection, the observation of exotic non-abelian statistics revealed by braiding, has so far…

In this paper, we introduce a two-dimensional fractional topological superconductor (FTSC) as a strongly correlated topological state which can be achieved by inducing superconductivity into an Abelian fractional quantum Hall state, through…

Strongly Correlated Electrons · Physics 2013-01-28 Abolhassan Vaezi

Topological materials are of great interest for applications in quantum computing, providing intrinsic robustness against environmental noises. A popular direction is to look for Majorana modes in integrated systems interfaced with…

Mesoscale and Nanoscale Physics · Physics 2018-02-19 Zhigang Song

Topological orders and associated topological protected excitations satisfying non-Abelian statistics have been widely explored in various platforms. The $\mathbb{Z}_3$ parafermions are regarded as the most natural generation of the…

Strongly Correlated Electrons · Physics 2019-09-11 Shun-Yao Zhang , Hong-Ze Xu , Yue-Xin Huang , Guang-Can Guo , Zheng-Wei Zhou , Ming Gong

Exotic topologically protected zero modes with parafermionic statistics (also called fractionalized Majorana modes) have been proposed to emerge in devices fabricated from a fractional quantum Hall system and a superconductor. The…

Known Majorana fermions models are considered as promising ones for the purposes of quantum computing robust to decoherence. One of the most expecting but unachieved goals is an effective control for braiding of Majoranas. Another one is to…

Mesoscale and Nanoscale Physics · Physics 2017-12-15 Halina V. Grushevskaya , George Krylov

We simulate the non-Abelian exchange of Majorana zero modes (MZMs) on a quantum computer. Rather than utilizing MZMs at the boundaries of quantum Ising chains, which are typically represented as nonlocal operators on a quantum computer,…

Quantum Physics · Physics 2025-07-24 Foster Sabatino , Matthew Brooks , Charles Tahan , Silas Hoffman

The recent progress of the Majorana experiments paves a way for the future tests of non-abelian braiding statistics and topologically-protected quantum information processing. However, a deficient design in those tests could be very…

Quantum Physics · Physics 2023-09-29 Peng Qian , Dong E. Liu

A fundamental obstacle for achieving quantum computation is local decoherence. One way to circumvent this problem rests on the concepts of topological quantum computation using non-local information storage, for example on pairs of Majorana…

Mesoscale and Nanoscale Physics · Physics 2016-06-20 G. Livanas , M. Sigrist , G. Varelogiannis

Topological superconductors (TSCs) provide a promising route to fault-tolerant quantum information processing. However, the canonical Majorana platform based on $2e$ TSCs remains computationally constrained. In this work, we find a $4e$ TSC…

Strongly Correlated Electrons · Physics 2026-03-31 Zhengyan Darius Shi , Zhaoyu Han , Srinivas Raghu , Ashvin Vishwanath

We study the Majorana fermions (MFs) in a spin ladder model. We propose and numerically show that the MFs qubit state can be read out by measuring the fusion excitation in the quenched inhomogeneous spin ladders. Moreover, we construct an…

Mesoscale and Nanoscale Physics · Physics 2013-11-20 Yin-Chen He , Yan Chen

Executing quantum algorithms using Majorana zero modes - a major milestone for the field of topological quantum computing - requires a platform that can be scaled to large quantum registers, can be controlled in real time and space, and a…

Mesoscale and Nanoscale Physics · Physics 2025-03-17 Jasmin Bedow , Dirk K. Morr

Search for parafermions and Fibonacci anyons, which are excitations obeying non-Abelian statistics, is driven both by the quest for deeper understanding of nature and prospects for universal topological quantum computation. However,…

Strongly Correlated Electrons · Physics 2019-09-04 J. Liang , G. E. Simion , Y. B. Lyanda-Geller