Error Rate of the Kane Quantum Computer CNOT Gate in the Presence of Dephasing

Details Error Rate of the Kane Quantum Computer CNOT Gate in the Presence of Dephasing Error Rate of the Kane Quantum Computer CNOT Gate in the Presence of Dephasing

2002-07-18

arxiv.org/abs/quant-ph/0207103v2

Phys. Rev. A, 67, 012301 (2003)

Physics

Quantum Physics

New version includes substantial additional data and merges two old figures into one. (12 pages, 6 figures)

Scientific paper

10.1103/PhysRevA.67.012301

We study the error rate of CNOT operations in the Kane solid state quantum
computer architecture. A spin Hamiltonian is used to describe the system.
Dephasing is included as exponential decay of the off diagonal elements of the
system's density matrix. Using available spin echo decay data, the CNOT error
rate is estimated at approsimately 10^{-3}.

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