Standard Quantum Limit for Probing Mechanical Energy Quantization
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Miao-2009-Standard Quantum Lim.pdf
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Author(s)
Danilishin, S. L.
Chen, Yanbei
Miao, Haixing
Corbitt, Thomas R
Date Issued
September 2009
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Miao, Haixing et al. “Standard Quantum Limit for Probing Mechanical Energy Quantization.” Physical Review Letters 103.10 (2009): 100402. (C) 2009 The American Physical Society.
Version
Final published version
Abstract
We derive a standard quantum limit for probing mechanical energy quantization in a class of systems with mechanical modes parametrically coupled to external degrees of freedom. To resolve a single mechanical quantum, it requires a strong-coupling regime—the decay rate of external degrees of freedom is smaller than the parametric coupling rate. In the case for cavity-assisted optomechanical systems, e.g., the one proposed by Thompson et al. [Nature (London) 452, 72 (2008)], zero-point motion of the mechanical oscillator needs to be comparable to the linear dynamical range of the optical system which is characterized by the optical wavelength divided by the cavity finesse.
MIT Department
LIGO (Observatory : Massachusetts Institute of Technology)
MIT Kavli Institute for Astrophysics and Space Research
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevLett.103.100402
