Details
| Original language | Undefined/Unknown |
|---|---|
| Journal | Physical Review A |
| Publication status | Published - 9 Mar 2009 |
Abstract
Keywords
- quant-ph, cond-mat.mes-hall
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Physical Review A, 09.03.2009.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Phase-noise induced limitations on cooling and coherent evolution in opto-mechanical systems
AU - Rabl, P.
AU - Genes, C.
AU - Hammerer, K.
AU - Aspelmeyer, M.
PY - 2009/3/9
Y1 - 2009/3/9
N2 - We present a detailed theoretical discussion of the effects of ubiquitous laser noise on cooling and the coherent dynamics in opto-mechanical systems. Phase fluctuations of the driving laser induce modulations of the linearized opto-mechanical coupling as well as a fluctuating force on the mirror due to variations of the mean cavity intensity. We first evaluate the influence of both effects on cavity cooling and find that for a small laser linewidth the dominant heating mechanism arises from intensity fluctuations. The resulting limit on the final occupation number scales linearly with the cavity intensity both under weak and strong coupling conditions. For the strong coupling regime, we also determine the effect of phase noise on the coherent transfer of single excitations between the cavity and the mechanical resonator and obtain a similar conclusion. Our results show that conditions for optical ground state cooling and coherent operations are experimentally feasible and thus laser phase noise does pose a challenge but not a stringent limitation for opto-mechanical systems.
AB - We present a detailed theoretical discussion of the effects of ubiquitous laser noise on cooling and the coherent dynamics in opto-mechanical systems. Phase fluctuations of the driving laser induce modulations of the linearized opto-mechanical coupling as well as a fluctuating force on the mirror due to variations of the mean cavity intensity. We first evaluate the influence of both effects on cavity cooling and find that for a small laser linewidth the dominant heating mechanism arises from intensity fluctuations. The resulting limit on the final occupation number scales linearly with the cavity intensity both under weak and strong coupling conditions. For the strong coupling regime, we also determine the effect of phase noise on the coherent transfer of single excitations between the cavity and the mechanical resonator and obtain a similar conclusion. Our results show that conditions for optical ground state cooling and coherent operations are experimentally feasible and thus laser phase noise does pose a challenge but not a stringent limitation for opto-mechanical systems.
KW - quant-ph
KW - cond-mat.mes-hall
U2 - 10.1103/PhysRevA.80.063819
DO - 10.1103/PhysRevA.80.063819
M3 - Article
JO - Physical Review A
JF - Physical Review A
SN - 2469-9926
ER -