Generation of a two-mode generalized coherent state in a cavity QED system

Joshi, Amitabh; Hassan, S. S.; Xiao, Min

doi:10.1016/j.physleta.2007.03.035

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Swap Gate For Photonic Qubits2

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Cited by 3 publications

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“…( 19)) we can realize a swap gate operation very conveniently. [25,34] For this purpose we take our initial field of bimodal cavity to be in Fock state, i.e., |ψ(0) total = |+ k ⊗(|h a |v b ), and the time evolution of the whole system can be easily expressed as…”

Section: Swap Gate For Photonic Qubitsmentioning

confidence: 99%

See 1 more Smart Citation

Feasible schemes for quantum swap gates of optical qubits via cavity QED

唐世清¹,

张登玉²,

汪新文³

et al. 2011

Chinese Phys. B

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Feasible schemes for implementing quantum swap gates of both coherent-state qubits and photonic qubits are proposed using a Λ-type atomic ensemble trapped in a bimodal optical cavity. In both protocols, the decoherence from atomic spontaneous emission is negligible due to the fact that the excited states of the atoms are adiabatically eliminated under large detuning condition and the swap gates can be created in a single step. In our schemes, the required atoms-cavity interaction time decreases with the increase of the number of atoms, which is very important in view of decoherence. The experimental feasibilities of the schemes are also discussed.

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Section: Swap Gate For Photonic Qubitsmentioning

confidence: 99%

“…where we have defined λ = N χ/2. The operator P (t) directly acts on the two-mode Fock state of the cavityfield, this can lead to [25,34]…”

Section: Swap Gate For Photonic Qubitsmentioning

confidence: 99%