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Quantum Information Processing

Quantum metrology of phase for accelerated two-level atom coupled with electromagnetic field with and without boundary

  • 01-03-2018
Published in:
Authors
Ying Yang
Xiaobao Liu
Jieci Wang
Jiliang Jing
Published in
Quantum Information Processing | Issue 3/2018

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Abstract

We study how to improve the precision of the quantum estimation of phase for an uniformly accelerated atom in fluctuating electromagnetic field by reflecting boundaries. We find that the precision decreases with increases of the acceleration without the boundary. With the presence of a reflecting boundary, the precision depends on the atomic polarization, position and acceleration, which can be effectively enhanced compared to the case without boundary if we choose the appropriate conditions. In particular, with the presence of two parallel reflecting boundaries, we obtain the optimal precision for atomic parallel polarization and the special distance between two boundaries, as if the atom were shielded from the fluctuation.

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previous article Deterministic remote preparation of arbitrary multi-qubit equatorial states via two-qubit entangled states
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Title
Quantum metrology of phase for accelerated two-level atom coupled with electromagnetic field with and without boundary
Authors
Ying Yang
Xiaobao Liu
Jieci Wang
Jiliang Jing
Publication date
01-03-2018
Publisher
Springer US
Published in
Quantum Information Processing / Issue 3/2018
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-018-1815-z
This content is only visible if you are logged in and have the appropriate permissions.

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