Floquet approach to bichromatically driven cavity-optomechanical systems
Accepted version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Malz, Daniel https://orcid.org/0000-0002-8832-0927
Nunnenkamp, Andreas https://orcid.org/0000-0003-2390-7636
Abstract
We develop a Floquet approach to solve time-periodic quantum Langevin equations in steady state. We show that two-time correlation functions of system operators can be expanded in a Fourier series and that a generalized Wiener-Khinchin theorem relates the Fourier transform of their zeroth Fourier component to the measured spectrum. We apply our framework to bichromatically driven cavity optomechanical systems, a setting in which mechanical oscillators have recently been prepared in quantum-squeezed states. Our method provides an intuitive way to calculate the power spectral densities for time-periodic quantum Langevin equations in arbitrary rotating frames.
Description
Keywords
cond-mat.mes-hall, cond-mat.mes-hall, quant-ph
Journal Title
Physical Review A
Conference Name
Journal ISSN
2469-9926
2469-9934
2469-9934
Volume Title
94
Publisher
American Physical Society (APS)
Publisher DOI
Sponsorship
The Royal Society (uf130303)
EPSRC (1642448)
Engineering and Physical Sciences Research Council (EP/M506485/1)
EPSRC (1642448)
Engineering and Physical Sciences Research Council (EP/M506485/1)
A.N. holds a University Research Fellowship from the Royal Society and acknowledges additional support from the Winton Programme for the Physics of Sustainability. D.M. acknowledges support by the UK Engineering and Physical Sciences Research Council (EPSRC) under Grant No. EP/M506485/1.