Physics – Quantum Physics
Scientific paper
2001-10-10
Physics
Quantum Physics
16 pages RevTex
Scientific paper
The dynamics of the nuclear-spin quantum computer with large number (L=1000) of qubits is considered using a perturbation approach, based on approximate diagonalization of exponentially large sparse matrices. Small parameters are introduced and used to compute the error in implementation of entanglement between remote qubits, by applying a sequence of resonant radio-frequency pulses. The results of the perturbation theory are tested using exact numerical solutions for small number of qubits.
Berman Gennady P.
Kamenev Dimitry I.
Tsifrinovich Vladimir I.
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