Harnessing symmetry-protected topological order for quantum memories

2019/08/30 by Marcel Goihl, M. Goihl, N. Walk +5 · 1 citation
Computer Science · Physics and Astronomy · #Chain (unit) #Encoding (memory) #Order (exchange) #Quantum #Quantum Computing Algorithms and Architecture #Quantum computer #Quantum information #Quantum information processing #Quantum many-body systems #Topological Materials and Phenomena #Topology (electrical circuits) #cond-mat.dis-nn #cond-mat.str-el #quant-ph

paper · pdf · doi:10.1103/physrevresearch.2.013120

published as Phys. Rev. Research 2, 013120 (2020) · 10 pages, 9 figures, v2: Reordered figures

arxiv created 2019/08/30 · openalex created_date 2019/09/05 · openalex publication_date 2020/02/04 · arxiv updated 2020/02/12 · openalex updated_date 2026/08/05

Abstract

By using figures of merit taken from quantum information theory, the authors characterize the information storage capabilities of a disordered and interacting topological spin chain. The performance of the chain depends on the method of encoding and disorder levels in a surprising way.

Citations

• Classifying gauge anomalies through SPT orders and classifying gravitational anomalies through topological orders
• Quantum state estimation
• Many-Body Localization in a Disordered Quantum Ising Chain
• Local Conservation Laws and the Structure of the Many-Body Localized States
• Majorana qubit decoherence by quasiparticle poisoning
• Symmetry protected topological orders and the group cohomology of their symmetry group
• Quantum many-body systems out of equilibrium
• Topological quantum memory
• Nonlinear Field Theory of Large-Spin Heisenberg Antiferromagnets: Semiclassically Quantized Solitons of the One-Dimensional Easy-Axis Néel State
• Fault-tolerant quantum computation by anyons
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• Optimal architectures for long distance quantum communication
• The European Quantum Technologies Roadmap

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