Geometric phase of entangled atomic qubits coupled to Lorentzian reservoirs

Journal Article · Fri Dec 15 04:00:00 EST 2017 · Annals of Physics

DOI:https://doi.org/10.1016/J.AOP.2017.09.011· OSTI ID:22848513

Chen, Ming-Feng ^[1]; Chen, Rong-Xin ^[2]; Yang, Zhen-Biao ^[1]

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1. Department of Physics, Fuzhou University, Fuzhou 350116 (China)
2. Texas A&M University, College Station, TX 77843 (United States)

We consider the unitary time evolution of the joint state of a complex quantum system, composed of two atomic qubits and two sets of Lorentzian reservoirs; two atomic qubits are initially in a maximally entangled state. We study the pure geometric phase for the joint system with the cases of both Markovian and non-Markovian Lorentzian reservoirs as the system undergoes parallel transport, and find that the geometric phase is related to the effective coupling between the entangled qubits and the reservoirs. This distinct result, as compared to that found in the previous studies, is due to the entanglement between the qubits and the reservoirs. Finally, the relation between entanglement and the geometric phase is discussed.

• OSTI ID: 22848513
• Journal Information: Annals of Physics, Journal Name: Annals of Physics Vol. 387; ISSN 0003-4916; ISSN APNYA6
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COMPARATIVE EVALUATIONS
LORENTZ INVARIANCE
MARKOV PROCESS
QUANTUM ENTANGLEMENT
QUANTUM SYSTEMS
QUBITS