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quant-ph2003★ 20 cited
A quantitative model for the effective decoherence of a quantum computer with imperfect unitary operations
Stefano Bettelli
The problem of the quantitative degradation of the performance of a quantum computer due to noisy unitary gates (imperfect external control) is studied. It is shown that quite gene…
quant-ph2003
Entanglement versus relaxation and decoherence in a quantum algorithm for quantum chaos
S. Bettelli, D. L. Shepelyansky
We study analytically and numerically the behavior of quantum entanglement in a quantum computer operating an efficient algorithm for quantum chaos. Our results show that in an ide…