In this paper, we present the generation of a CNOT gate between two atoms in a cavity based on transitionless quantum driving. Compared to some previous schemes, the proposed scheme for generating a CNOT gate significantly shortens the duration time. Besides, the scheme is insensitive to the fluctuation of evolution time and coupling coefficient. Also, the influences of atomic spontaneous emission and cavity decay on the fidelity are discussed by numerical simulation. The numerical result shows that the scheme is robust against decoherence.
机构:
South China Normal Univ, Sch Phys & Telecommun Engn, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Peoples R China
Guangzhou Railway Polytech, Sch Elect Engn, Guangzhou 510430, Peoples R ChinaSouth China Normal Univ, Sch Phys & Telecommun Engn, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Peoples R China
Ye, Qin -Zhou
Liang, Zhen-Tao
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South China Normal Univ, Sch Phys & Telecommun Engn, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Peoples R ChinaSouth China Normal Univ, Sch Phys & Telecommun Engn, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Peoples R China
Liang, Zhen-Tao
Zhang, Wei-Xin
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South China Normal Univ, Sch Phys & Telecommun Engn, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Peoples R ChinaSouth China Normal Univ, Sch Phys & Telecommun Engn, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Peoples R China
Zhang, Wei-Xin
Pan, De-Jian
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South China Normal Univ, Sch Phys & Telecommun Engn, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Peoples R ChinaSouth China Normal Univ, Sch Phys & Telecommun Engn, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Peoples R China
Pan, De-Jian
Xue, Zheng-Yuan
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South China Normal Univ, Sch Phys & Telecommun Engn, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Peoples R China
South China Normal Univ, Frontier Res Inst Phys, Guangdong Hong Kong Joint Lab Quantum Matter, Guangzhou 510006, Peoples R ChinaSouth China Normal Univ, Sch Phys & Telecommun Engn, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Peoples R China
Xue, Zheng-Yuan
Yan, Hui
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South China Normal Univ, Sch Phys & Telecommun Engn, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Peoples R China
South China Normal Univ, Frontier Res Inst Phys, Guangdong Hong Kong Joint Lab Quantum Matter, Guangzhou 510006, Peoples R ChinaSouth China Normal Univ, Sch Phys & Telecommun Engn, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Peoples R China