Noise-Free Measurement of Harmonic Oscillators with Instantaneous Interactions
Open accessAbstract
We present a method of measuring the quantum state of a harmonic oscillator through instantaneous probe-system selective interactions of the Jaynes-Cummings type. We prove that this scheme is robust to general decoherence mechanisms, allowing the possibility of measuring fast-decaying systems in the weak-coupling regime. This method could be applied to different setups: motional states of trapped ions, microwave fields in cavity or circuit QED, and even intracavity optical fields.
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Expectation values such as <x(t)> could be measured using very short probe times, without reconstructing the full quantum state.
“It has been noted theoretically that such expectation values could be measured using very short probe times, without reconstructing the full quantum state [8, 24, 25].”
From Quantum simulation of the Dirac equation (2010) · cites this paper as [24]
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Quantum simulation of the Dirac equation
Gerritsma, R., Kirchmair, G., Zähringer, F., Solano, E., Blatt, R., & Roos, C. F. (2010) · Nature · doi:10.1038/nature08688 · Cited by 725 · see citing works
“It has been noted theoretically that such expectation values could be measured using very short probe times, without reconstructing the full quantum state [8, 24, 25].”
BackgroundSelf-citationRelativistic quantum mechanics with trapped ions
Lamata, L., Casanova, J., Gerritsma, R., Roos, C. F., García-Ripoll, J. J., & Solano, E. (2011) · New Journal of Physics · doi:10.1088/1367-2630/13/9/095003 · Cited by 80 · see citing works
Self-citation
- Authors
- França Santos, M., Giedke, G., & Solano, E.
- Affiliations
- Max Planck Institute of Quantum Optics (DE)
- ORCID
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2007-01-08
- Volume
- 98
- Issue
- 2
- Pages
- 020401-020401
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2094308956
- Cited by
- 14
- References
- 0
- Citations by year
- 2022: 1 · 2021: 1 · 2015: 1 · 2013: 1
- FWCI
- 3.16
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Physical Review Letters (publishedVersion)
- PubMed (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- Max Planck Institute for Plasma Physics (submittedVersion)
- MPG.PuRe (Max Planck Society) (submittedVersion)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Applications
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Mechanical and Optical Resonators
- Keywords
- quantum state measurement, harmonic oscillator, Jaynes-Cummings interaction, decoherence robustness, weak coupling, trapped ions, cavity quantum electrodynamics, circuit quantum electrodynamics
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