Journal article
Geometric-phase backaction in a mesoscopic qubit-oscillator system
- Abstract:
- We illustrate a reverse Von Neumann measurement scheme in which a geometric phase induced on a quantum harmonic oscillator is measured using a microscopic qubit as a probe. We show how such a phase, generated by a cyclic evolution in the phase space of the harmonic oscillator, can be kicked back on the qubit, which plays the role of a quantum interferometer. We also extend our study to finite-temperature dissipative Markovian dynamics and discuss potential implementations in micro- and nanomechanical devices coupled to an effective two-level system. © 2012 American Physical Society.
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- Publisher copy:
- 10.1103/PhysRevA.85.022129
Authors
- Journal:
- Physical Review A - Atomic, Molecular, and Optical Physics More from this journal
- Volume:
- 85
- Issue:
- 2
- Publication date:
- 2012-02-29
- DOI:
- EISSN:
-
1094-1622
- ISSN:
-
1050-2947
- Language:
-
English
- Pubs id:
-
pubs:343078
- UUID:
-
uuid:0c4b5d0c-027a-4fe2-a1e9-be8f0451d954
- Local pid:
-
pubs:343078
- Source identifiers:
-
343078
- Deposit date:
-
2012-12-19
- ARK identifier:
Terms of use
- Copyright date:
- 2012
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