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

Abstract

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 $m$.

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

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Cited by in corpus (4)

• Intrinsic decoherence effects on tripartite GHZ state generation using a trapped ion coupled to an optical cavity
• Tripartite GHZ state generation with trapped ion in an optical cavity
• Multipartite entanglement of three trapped ions in a cavity and W- State generation
• An efficient single-step scheme for manipulating quantum information of two trapped ions beyond the Lamb-Dicke limit