Probing the environment of an inaccessible system by a qubit ancilla

S. Campbell; M. Paternostro; S. Bose; M. S. Kim

doi:10.1103/PhysRevA.81.050301

Probing the environment of an inaccessible system by a qubit ancilla

S. Campbell, M. Paternostro, S. Bose, M. S. Kim

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Abstract

We study the conditions for probing the environment affecting an inaccessible system by means of continuous interaction and measurements performed only on a probe. The scheme exploits the statistical properties of the probe at its steady state and simple data postprocessing. Our results, highlighting the roles played by interaction and entanglement in this process, are both pragmatically relevant and fundamentally interesting.

Original language	English
Article number	050301
Number of pages	4
Journal	Physical Review A
Volume	81
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevA.81.050301
Publication status	Published - 11 May 2010

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1103/PhysRevA.81.050301

Probing the environment of an inaccessible system by a qubit ancilla
©2010 The American Physical Society
Final published version, 492 KB

1 Finished

R1952TCP: Investigating Quantumness in Complex Systems under Adverse Conditions
Paternostro, M.
01/08/2008 → 31/03/2014
Project: Research

Cite this

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Probing the environment of an inaccessible system by a qubit ancilla

Abstract

ASJC Scopus subject areas

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Projects

R1952TCP: Investigating Quantumness in Complex Systems under Adverse Conditions

Cite this