Theoretical comparison of quantum Zeno gates and logic gates based on the cross-Kerr nonlinearity

Hao You; J. D. Franson

doi:10.1007/s11128-011-0318-y

Theoretical comparison of quantum Zeno gates and logic gates based on the cross-Kerr nonlinearity

Hao You, J. D. Franson

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Quantum logic operations can be implemented using nonlinear phase shifts (the Kerr effect) or the quantum Zeno effect based on strong two-photon absorption. Both approaches utilize three-level atoms, where the upper level is tuned on resonance for the Zeno gates and off-resonance for the nonlinear phase gates. The performance of nonlinear phase gates and Zeno gates are compared under conditions where the parameters of the resonant cavities and three-level atoms are the same in both cases. It is found that the expected performance is comparable for the two approaches despite the fundamental differences between the Zeno and Kerr effects.

Original language	English (US)
Pages (from-to)	1627-1651
Number of pages	25
Journal	Quantum Information Processing
Volume	11
Issue number	6
DOIs	https://doi.org/10.1007/s11128-011-0318-y
State	Published - Dec 2012
Externally published	Yes

Keywords

Quantum computing
Quantum logic gates
Zeno effect
Zeno gates

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Statistical and Nonlinear Physics
Theoretical Computer Science
Signal Processing
Modeling and Simulation
Electrical and Electronic Engineering

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10.1007/s11128-011-0318-y

Cite this

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abstract = "Quantum logic operations can be implemented using nonlinear phase shifts (the Kerr effect) or the quantum Zeno effect based on strong two-photon absorption. Both approaches utilize three-level atoms, where the upper level is tuned on resonance for the Zeno gates and off-resonance for the nonlinear phase gates. The performance of nonlinear phase gates and Zeno gates are compared under conditions where the parameters of the resonant cavities and three-level atoms are the same in both cases. It is found that the expected performance is comparable for the two approaches despite the fundamental differences between the Zeno and Kerr effects.",

keywords = "Quantum computing, Quantum logic gates, Zeno effect, Zeno gates",

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note = "Funding Information: Acknowledgments We would like to acknowledge valuable discussions with Todd Pittman and Scott Hendrickson. This work was supported in part by the Intelligence Advanced Research Projects Activity (IARPA) under United States Army Research Office (USARO) contract W911NF-05-1-0397, and the National Science Foundation (NSF) under grant 0652560.",

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doi = "10.1007/s11128-011-0318-y",

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AU - You, Hao

AU - Franson, J. D.

N1 - Funding Information: Acknowledgments We would like to acknowledge valuable discussions with Todd Pittman and Scott Hendrickson. This work was supported in part by the Intelligence Advanced Research Projects Activity (IARPA) under United States Army Research Office (USARO) contract W911NF-05-1-0397, and the National Science Foundation (NSF) under grant 0652560.

PY - 2012/12

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N2 - Quantum logic operations can be implemented using nonlinear phase shifts (the Kerr effect) or the quantum Zeno effect based on strong two-photon absorption. Both approaches utilize three-level atoms, where the upper level is tuned on resonance for the Zeno gates and off-resonance for the nonlinear phase gates. The performance of nonlinear phase gates and Zeno gates are compared under conditions where the parameters of the resonant cavities and three-level atoms are the same in both cases. It is found that the expected performance is comparable for the two approaches despite the fundamental differences between the Zeno and Kerr effects.

AB - Quantum logic operations can be implemented using nonlinear phase shifts (the Kerr effect) or the quantum Zeno effect based on strong two-photon absorption. Both approaches utilize three-level atoms, where the upper level is tuned on resonance for the Zeno gates and off-resonance for the nonlinear phase gates. The performance of nonlinear phase gates and Zeno gates are compared under conditions where the parameters of the resonant cavities and three-level atoms are the same in both cases. It is found that the expected performance is comparable for the two approaches despite the fundamental differences between the Zeno and Kerr effects.

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Theoretical comparison of quantum Zeno gates and logic gates based on the cross-Kerr nonlinearity

Abstract

Keywords

ASJC Scopus subject areas

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