Detecting and characterizing frequency fluctuations of vibrational modes
We show how frequency fluctuations of a vibrational mode can be separated from other sources of phase noise. The method is based on the analysis of the time dependence of the complex amplitude of forced vibrations. The moments of the complex amplitude sensitively depend on the frequency noise statistics and its power spectrum. The analysis applies to classical and to quantum vibrations.
Additional Information© 2011 American Physical Society. Received 15 July 2011; published 3 October 2011. This research was supported in part by DARPA through the DEFYS program. M.I.D. acknowledges also partial support from the NSF, Grant EMT/QIS 082985.
Published - Maizelis2011p16117Phys_Rev_B.pdf