Phase-difference-dependent laser-induced quantum entanglement in a pair of cubits

Alexander A. Biryukov; Vladimir L. Derbov; Mark A. Shleenkov

doi:10.1117/12.2181319

19 March 2015 Phase-difference-dependent laser-induced quantum entanglement in a pair of cubits

Alexander A. Biryukov, Vladimir L. Derbov, Mark A. Shleenkov

Proceedings Volume 9448, Saratov Fall Meeting 2014: Optical Technologies in Biophysics and Medicine XVI; Laser Physics and Photonics XVI; and Computational Biophysics; 94482I (2015) https://doi.org/10.1117/12.2181319
Event: Saratov Fall Meeting 2014, 2014, Saratov, Russian Federation

Abstract

We study the evolution of quantum entanglement in the model of two identical qubits interacting with a singlemode laser field. The density matrix and Peres-Horodecki parameter are calculated within the frameworks of path-integral formalism. The quantum entanglement measure is shown to be strongly dependent upon the phase difference between the laser radiation acting on each cubit. This observation may offer the possibility of quantum entanglement stationary control by varying the distance between the qubits.

Citation Download Citation

Alexander A. Biryukov, Vladimir L. Derbov, and Mark A. Shleenkov "Phase-difference-dependent laser-induced quantum entanglement in a pair of cubits", Proc. SPIE 9448, Saratov Fall Meeting 2014: Optical Technologies in Biophysics and Medicine XVI; Laser Physics and Photonics XVI; and Computational Biophysics, 94482I (19 March 2015); https://doi.org/10.1117/12.2181319

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KEYWORDS

Quantum communications

Quantum computing

Chemical species

Quantum physics

Entangled states

Laser marking

Laser stabilization

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