Many-particle localization by constructed disorder: enabling quantum computing with perpetually coupled qubits

Details Many-particle localization by constructed disorder: enabling quantum computing with perpetually coupled qubits Many-particle localization by constructed disorder: enabling quantum computing with perpetually coupled qubits

2004-01-13

arxiv.org/abs/cond-mat/0401201v4

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures

Scientific paper

We demonstrate that, in a many-particle system, particles can be strongly confined to their sites. The localization is obtained by constructing a sequence of on-site energies that efficiently suppresses resonant hopping. The time during which a many-particle state remains strongly localized in an infinite chain can exceed the reciprocal hopping frequency by $\agt 10^6$ already for a narrow energy bandwidth. The results show viability of quantum computers with time-independent qubit coupling.

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