科研之友
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摘要
The cavity-mediated adiabatic transfer (CMAT), which is the physical basis of several implementations of two-qubit gates, is investigated analytically. An upper bound for the success probability of CMAT in the presence of atomic spontaneous emission and cavity photon loss is given by a simple function of only the so-called critical atom number. Moreover, a situation which realizes the upper bound is found, and this is verified by numerical simulation. It also turns out from numerical simulation that standard Gaussian pulses can achieve the success probability close to the upper bound. That is, the standard Gaussian pulses are almost optimal for CMAT.
- 出版日期2008-1
