Finite-temperature Bell test for quasiparticle entanglement in the Fermi sea

Wolf-Ruediger Hannes, M. Titov

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We demonstrate that the Bell test cannot be realized at finite temperatures in the vast majority of electronic setups proposed previously for quantum entanglement generation. This fundamental difficulty is shown to originate in a finite probability of quasiparticle emission from Fermi-sea detectors. In order to overcome the feedback problem, we suggest a detection strategy, which takes advantage of a resonant coupling to the quasiparticle drains. Unlike other proposals, the designed Bell test provides a possibility to determine the critical temperature for entanglement production in the solid state. © 2008 The American Physical Society.

Original languageEnglish
Article number115323
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume77
Issue number11
DOIs
Publication statusPublished - 14 Mar 2008

Fingerprint Dive into the research topics of 'Finite-temperature Bell test for quasiparticle entanglement in the Fermi sea'. Together they form a unique fingerprint.

Cite this