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Abstract:
We propose an alternative scheme of shortcuts to a quantum controlled phase gate in a much shorter time based on the approach of Lewis-Riesenfeld invariants in cavity quantum electrodynamics systems. This scheme can be used to perform a one-qubit phase gate, a two-qubit controlled phase gate, as well as a multiqubit controlled phase gate. The strict numerical simulations demonstrate that the total operation time for implementing controlled phase gates is much shorter than previous schemes and very robust against decoherence.
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PHYSICAL REVIEW A
ISSN: 1050-2947
Year: 2015
Issue: 3
Volume: 91
2 . 7 6 5
JCR@2015
2 . 6 0 0
JCR@2023
ESI Discipline: PHYSICS;
ESI HC Threshold:200
JCR Journal Grade:1
CAS Journal Grade:2
Cited Count:
WoS CC Cited Count: 58
SCOPUS Cited Count: 60
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
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