Bayat, A; Bose, S; Sodano, P; (2010) Entanglement routers using macroscopic singlets. Physical Review Letters , 105 (18) , Article 187204. 10.1103/PhysRevLett.105.187204.
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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.
|Title:||Entanglement routers using macroscopic singlets|
|Open access status:||An open access version is available from UCL Discovery|
|Additional information:||© 2010 The American Physical Society|
|UCL classification:||UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Physics and Astronomy|
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