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quant-ph2004★ 2 cited
Distinctness of ensembles having the same density matrix and the nature of liquid NMR quantum computing
Gui-Lu Long, Yi-Fan Zhou, Jia-Qi Jin +1
We show that differently constructed ensembles having the same density matrix may be physically distinguished by observing fluctuations of some observables. An explicit expression…
quant-ph2001
General Phase Matching Condition for Quantum Searching
Gui-Lu Long, Li Xiao, Yang Sun
We present a general phase matching condition for the quantum search algorithm with arbitrary unitary transformation and arbitrary phase rotations. We show by an explicit expressio…
quant-ph2000
Effects of Imperfect Gate Operations in Shor's Prime Factorization Algorithm
Hao Guo, Gui-Lu Long, Yang Sun
The effects of imperfect gate operations in implementation of Shor's prime factorization algorithm are investigated. The gate imperfections may be classified into three categories:…