All-optical sub-Kelvin sympathetic cooling of a levitated microsphere in vacuum
Yoshihiko Arita, Graham D. Bruce, E. M. Wright, Stephen H. Simpson, Pavel Zemánek, Kishan Dholakia
Abstract
We demonstrate all-optical sympathetic cooling of a laser-trapped microsphere to sub-Kelvin temperatures, mediated by optical binding to a feedback-cooled adjacent particle. Our study opens prospects for multi-particle quantum entanglement and sensing in levitated optomechanics.
Topics & Concepts
MicrosphereMaterials scienceLevitationPhysicsMechanicsEngineeringChemical engineeringMagnetQuantum mechanicsAdvanced Fiber Laser TechnologiesMechanical and Optical ResonatorsPhotonic and Optical Devices