Fast quantum logic gates with trapped ions interacting with external laser and quantized cavity field beyond the Lamb-Dicke regime

Details Fast quantum logic gates with trapped ions interacting with external laser and quantized cavity field beyond the Lamb-Dicke regime Fast quantum logic gates with trapped ions interacting with external laser and quantized cavity field beyond the Lamb-Dicke regime

2002-10-14

arxiv.org/abs/quant-ph/0210113v2

Phys. Lett. A 309 (2003) 345-350.

Physics

Quantum Physics

Revised version, One major correction, 6 pages, Two tables

Scientific paper

10.1016/S0375-9601(03)00295-0

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 times, 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 $m$.

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