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Entanglement Routers Using Macroscopic Singlets

Bayat, A; Bose, S; Sodano, P; (2010) Entanglement Routers Using Macroscopic Singlets. PHYS REV LETT , 105 (18) , Article 187204. 10.1103/PhysRevLett.105.187204. Green open access

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Abstract

We propose a mechanism where high entanglement between very distant boundary spins is generated by suddenly connecting two long Kondo spin chains. We show that this procedure provides an efficient way to route entanglement between multiple distant sites. We observe that the key features of the entanglement dynamics of the composite spin chain are well described by a simple model of two singlets, each formed by two spins. The proposed routing mechanism is a footprint of the emergence of a Kondo cloud in a Kondo system and can be engineered and observed in varied physical settings.

Type: Article
Title: Entanglement Routers Using Macroscopic Singlets
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.105.187204
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.105.187204
Language: English
Additional information: © 2010 The American Physical Society
Keywords: STATE
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/239819
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