Generation, manipulation, and detection of two-qubit entanglement in waveguide QED

C. Gonzalez-Ballestero, Esteban Moreno, and F. J. Garcia-Vidal
Phys. Rev. A 89, 042328 – Published 28 April 2014

Abstract

We study the possibility of using guided photons to generate, control, and measure the entanglement of two qubits that is mediated by a one-dimensional waveguide. We show how entanglement can be generated both with single-photon and with two-photon wave packets. The introduction of a second photon allows for a manipulation of the entanglement between the qubits, and phenomena such as sudden death and revival of entanglement appear. Finally, we propose a procedure for entanglement detection via the scattering output of a single photon over a qubit state.

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  • Received 27 January 2014

DOI:https://doi.org/10.1103/PhysRevA.89.042328

©2014 American Physical Society

Authors & Affiliations

C. Gonzalez-Ballestero, Esteban Moreno*, and F. J. Garcia-Vidal

  • Departamento de Física Teórica de la Materia Condensada, and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, Madrid 28049, Spain

  • *esteban.moreno@uam.es

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Issue

Vol. 89, Iss. 4 — April 2014

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