How to localize excitations in a quantum computer with perpetually coupled qubits

Mark I. Dykman; Lea F. Santos; Michael Shapiro; Felix M. Izrailev

doi:10.1117/12.546897

25 May 2004 How to localize excitations in a quantum computer with perpetually coupled qubits

Mark I. Dykman, Lea F. Santos, Michael Shapiro, Felix M. Izrailev

Proceedings Volume 5472, Noise and Information in Nanoelectronics, Sensors, and Standards II; (2004) https://doi.org/10.1117/12.546897
Event: Second International Symposium on Fluctuations and Noise, 2004, Maspalomas, Gran Canaria Island, Spain

Abstract

Strong many-particle localization is studied in a 1D array of perpetually coupled qubits and an equivalent 1D system of interacting fermions. We construct a bounded sequence of the on-site fermion energies, or qubit transition frequencies, that suppresses resonant hopping between both nearest and remote neighbors. Besides quasi-exponential decay of the single-particle transition amplitude,it leads to long lived strongly localized many-particle states. This makes quantum computing with time-independent qubit coupling viable.

Citation Download Citation

Mark I. Dykman, Lea F. Santos, Michael Shapiro, and Felix M. Izrailev "How to localize excitations in a quantum computer with perpetually coupled qubits", Proc. SPIE 5472, Noise and Information in Nanoelectronics, Sensors, and Standards II, (25 May 2004); https://doi.org/10.1117/12.546897

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