Resonant scattering can enhance the degree of entanglement

2006/09/28 by Kazuya Yuasa, Hiromichi Nakazato · 1 citation
Computer Science · Physics and Astronomy · #Mechanical and Optical Resonators #Quantum Information and Cryptography #Quantum optics and atomic interactions #quant-ph

paper · pdf · doi:10.1088/1751-8113/40/2/009

published as J. Phys. A 40 (2007) 297-308 · 7 pages, 13 figures

arxiv created 2006/09/28 · openalex publication_date 2006/12/12 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Generation of entanglement between two qubits by scattering an entanglement mediator is discussed. The mediator bounces between the two qubits and exhibits a resonant scattering. It is clarified how the degree of the entanglement is enhanced by the constructive interference of such bouncing processes. Maximally entangled states are available via adjusting the incident momentum of the mediator or the distance between the two qubits, but their fine tunings are not necessarily required to gain highly entangled states and a robust generation of entanglement is possible.

Citations

• Creation of entangled states of distant atoms by interference
• Information and computation: Classical and quantum aspects
• Entanglement of Formation of an Arbitrary State of Two Qubits
• Distillation of entanglement between distant systems by repeated measurements on an entanglement mediator
• Manipulating quantum entanglement with atoms and photons in a cavity
• Robust Creation of Entanglement between Ions in Spatially Separate Cavities
• Cavity-loss-induced generation of entangled atoms
• Long-distance quantum communication with atomic ensembles and linear optics

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