Auxiliary-cavity-assisted ground-state cooling of optically levitated nanosphere in the unresolved-sideband regime
arXiv:1705.10926 · doi:10.1103/PhysRevA.96.063818
Abstract
We theoretically analyse the ground-state cooling of optically levitated nanosphere in unresolved- sideband regime by introducing a coupled high-quality-factor cavity. On account of the quantum interference stemming from the presence of the coupled cavity, the spectral density of the optical force exerting on the nanosphere gets changed and then the symmetry between the heating and the cooling processes is broken. Through adjusting the detuning of strong-dissipative cavity mode, one obtains an enhanced net cooling rate for the nanosphere. It is illustrated that the ground state cooling can be realized in the unresolved sideband regime even if the effective optomechanical coupling is weaker than the frequency of the nanosphere, which can be understood by the picture that the effective interplay of the nanosphere and the auxiliary cavity mode brings the system back to an effective resolved regime. Besides, the coupled cavity refines the dynamical stability of the system.
13 pages, 6 figures
References in corpus (29)
- Electromagnetically Induced Transparency and Slow Light with Optomechanics
- Quantum Theory of Cavity-Assisted Sideband Cooling of Mechanical Motion
- Theory of ground state cooling of a mechanical oscillator using dynamical back-action
- Cavity Optomechanics
- Millikelvin cooling of an optically trapped microsphere in vacuum
- Large Quantum Superpositions and Interference of Massive Nanometer-Sized Objects
- Quantum Noise Interference and Back-action Cooling in Cavity Nanomechanics
- Optically Levitating Dielectrics in the Quantum Regime: Theory and Protocols
- Dynamical Backaction of Microwave Fields on a Nanomechanical Oscillator
- Dynamic Relaxation of a Levitated Nanoparticle from a Non-Equilibrium Steady State
- Search for Millicharged Particles Using Optically Levitated Microspheres
- Electromagnetially-induced-transparency-like ground-state cooling in a double-cavity optomechanical system
- Attonewton force detection using microspheres in a dual-beam optical trap in high vacuum
- Fast ground-state cooling of mechanical resonator with time-dependent optical cavities
- Review of cavity optomechanical cooling
- Experimental Realisation of a Thermal Squeezed State of Levitated Optomechanics
- Heralded generation of entanglement with coupled cavities
- Optical Lattices with Micromechanical Mirrors
- Cavity-Enhanced Long-Distance Coupling of an Atomic Ensemble to a Micromechanical Membrane
- Cold-Atom-Induced Control of an Optomechanical Device
- Three dimensional cooling and detecting of a nanosphere with a single cavity
- Hybrid optomechanical cooling by atomic systems
- Selectable linear or quadratic coupling in an optomechanical system
- Coherent control and feedback cooling in a remotely-coupled hybrid atom-optomechanical system
- Non-equilibrium steady state of a driven levitated particle with feedback cooling
- Cold atoms as a coolant for levitated optomechanical systems
- Hybrid cavity mechanics with doped systems
- Optomechanically-induced-transparency cooling of massive mechanical resonators to the quantum ground state
- Probing Spontaneous Wave-Function Collapse with Entangled Levitating Nanospheres