Quantum entanglement for two qubits in a nonstationary cavity

Oleg L. Berman, Roman Ya. Kezerashvili, and Yurii E. Lozovik

Phys. Rev. A 94, 052308 – Published 7 November 2016

Abstract

The quantum entanglement and the probability of the dynamical Lamb effect for two qubits caused by nonadiabatic fast change of the boundary conditions are studied. The conditional concurrence of the qubits for each fixed number of created photons in a nonstationary cavity is obtained as a measure of the dynamical quantum entanglement due to the dynamical Lamb effect. We discuss the physical realization of the dynamical Lamb effect, based on superconducting qubits.

Received 19 July 2016

DOI:https://doi.org/10.1103/PhysRevA.94.052308

Physics Subject Headings (PhySH)

Entanglement manipulation Entanglement measures Entanglement production Light-matter interaction Quantum information with solid state qubits

Quantum Information, Science & TechnologyAtomic, Molecular & Optical

Authors & Affiliations

Oleg L. Berman^1,2, Roman Ya. Kezerashvili^1,2, and Yurii E. Lozovik^3,4

¹Physics Department, New York City College of Technology, The City University of New York, Brooklyn, New York 11201, USA
²The Graduate School and University Center, The City University of New York, New York, New York 10016, USA
³Institute of Spectroscopy, Russian Academy of Sciences, 142190 Troitsk, Moscow, Russia
⁴MIEM at National Research University Higher School of Economics, Moscow, Russia

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Issue

Vol. 94, Iss. 5 — November 2016

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