Search Results for author: C. M. Herdman

Found 4 papers, 4 papers with code

Rényi generalization of the operational entanglement entropy

2 code implementations3 Apr 2018 Hatem Barghathi, C. M. Herdman, Adrian Del Maestro

Operationally accessible entanglement in bipartite systems of indistinguishable particles could be reduced due to restrictions on the allowed local operations as a result of particle number conservation.

Quantum Gases Quantum Physics

Engineering autonomous error correction in stabilizer codes at finite temperature

1 code implementation16 Mar 2016 C. Daniel Freeman, C. M. Herdman, K. B. Whaley

We present an error correcting protocol that enhances the lifetime of stabilizer code based qubits which are susceptible to the creation of pairs of localized defects (due to string-like error operators) at finite temperature, such as the toric code.

Quantum Physics Statistical Mechanics

Detecting Goldstone Modes with Entanglement Entropy

1 code implementation5 Feb 2015 B. Kulchytskyy, C. M. Herdman, Stephen Inglis, Roger G. Melko

In the face of mounting numerical evidence, Metlitski and Grover [arXiv:1112. 5166] have given compelling analytical arguments that systems with spontaneous broken continuous symmetry contain a sub-leading contribution to the entanglement entropy that diverges logarithmically with system size.

Strongly Correlated Electrons High Energy Physics - Theory Quantum Physics

Relaxation dynamics of the toric code in contact with a thermal reservoir: Finite-size scaling in a low temperature regime

1 code implementation9 May 2014 C. Daniel Freeman, C. M. Herdman, Dylan J Gorman, K. B. Whaley

In contrast to the size-independent bound predicted for the toric code in the thermodynamic limit, we identify a low-temperature regime on finite lattices below a size-dependent crossover temperature with nontrivial finite-size and temperature scaling of the relaxation time.

Statistical Mechanics Quantum Physics

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