• Home
  1. Home
  2. Reduced and projected two-particle entanglement at finite temperatures
Scientific article
OA Policy
English

Reduced and projected two-particle entanglement at finite temperatures

Contributors

Samuelsson, Martin Peter; Neder, I.; Buttiker, Markus

Published in

Physical review letters, vol. 102, 106804

Publication date

2009

Abstract

We present a theory for two-particle entanglement production and detection in mesoscopic conductors at finite temperature. In contrast to the zero temperature limit, the entanglement of the density matrix projected out of the emitted many-body state is different from the entanglement of the reduced density matrix, detectable by current correlation measurements. We show that under very general conditions the reduced entanglement constitutes a lower bound for the projected entanglement. Applying the theory to the recent experiment [Neder et al, Nature 448 333 (2007)] on a fermionic Hanbury Brown Twiss two-particle interferometer we find that despite an appreciable entanglement production in the experiment, the detectable entanglement is close to zero.

Note

Comments: Published version (with minor extensions)

UNIGE affiliation entities

Citation (ISO format)

SAMUELSSON, Martin Peter, NEDER, I., BUTTIKER, Markus. Reduced and projected two-particle entanglement at finite temperatures. In: Physical review letters, 2009, vol. 102, p. 106804. doi: 10.1103/PhysRevLett.102.106804

Main files (1)

Article

Identifiers

Journal ISSN

0031-9007
554views
370downloads

Technical informations

Creation

30/11/2009 15:07:46

First validation

30/11/2009 15:07:46

Update

14/03/2023 15:18:08

Status update

14/03/2023 15:18:08

Last indexation

29/10/2024 12:37:22
All rights reserved by Archive ouverte UNIGE and the University of Geneva
OpenAIRE Indexed & Validated