Fast quantum logic gates with trapped ions interacting with external laser and quantized cavity field beyond the Lamb-Dicke regime
Sharma, S S, Vidiella-Barranco, A · CERN Document Server (European Organization for Nuclear Research) · 2002
A scheme to implement quantum logic gates by manipulating trapped ions through interaction with monochromatic external laser field and quantized cavity field, beyond the Lamb-Dicke regime, is presented. Characteristic time, for implementing ionic state transitions using non-resont laser pulse or quantized cavity field, shows a sharp decline for large Lamb-Dicke parameter value of $\\eta_{L}=\\eta_{c}=0.2$, and is seen to decrease further with increase in number of initial state vibrational quanta $m$.