Cited by 40Quantum Computing Algorithms and ArchitectureQuantum many-body systemsQuantum Information and Cryptography

Statistical mechanical models and topological color codes

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Bombin, H., Martin-Delgado, M. A.·2008·Physical Review A

Abstract

We find that the overlap of a topological quantum color-code state, representing a quantum memory, with a factorized state of qubits can be written as the partition function of a three-body classical Ising model on triangular or Union Jack lattices. This mapping allows us to test that different computational capabilities of color codes correspond to qualitatively different universality classes of their associated classical spin models. By generalizing these statistical mechanical models for arbitrary inhomogeneous and complex couplings, it is possible to study a measurement-based quantum computation with a color-code state and we find that their classical simulability remains an open problem. We complement the measurement-based computation with the construction of a cluster state that yields the topological color code and this also gives the possibility to represent statistical models with external magnetic fields.

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  • The partition function Z_L is identified with a quantum mechanical amplitude obtained as an overlap between two quantum states.

    “This expression states that the partition function Z L is identified with a quantum mechanical amplitude which is obtained as an overlap between two quantum states 92,95,96 (see also 99 ).”

    From Measurement-based quantum computation (2009) · cites this paper as [99]

  • These connections enable one to phrase statistical physics problems naturally in a quantum mechanical setting.

    “For one, these connections enable one to phrase statistical physics problems naturally in a quantum mechanical setting 87,92,95,96,99-102 .”

    From Measurement-based quantum computation (2009) · cites this paper as [99]

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Authors
Bombin, H., & Martin-Delgado, M. A.
Affiliations
Universidad Complutense de Madrid (ES)
Venue
Physical Review A
Published
2008-04-24
Volume
77
Issue
4
ISSN
  • 0556-2791 (ISSN-L)
  • 1050-2947
  • 1094-1622
OpenAlex
W1992610563
Cited by
39
References
27
Citations by year
2025: 2 · 2022: 1 · 2021: 1 · 2020: 1 · 2019: 5 · 2018: 2 · 2017: 1 · 2016: 1 · 2015: 2 · 2014: 2 · 2013: 6 · 2012: 1
FWCI
7.40
Type
journal article
Language
en
Open access
Locations
  • Physical Review A (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Quantum Computing Algorithms and Architecture
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum many-body systems
  • Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
Keywords
quantum memory, partition function, universality class, classical spin systems, measurement-based quantum computation, classical simulability, cluster states, external magnetic field, inhomogeneous coupling

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