Continuous feedback on a quantum gas coupled to an optical cavity
Published version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Abstract
We present an active feedback scheme acting continuously on the state of a
quantum gas dispersively coupled to a high-finesse optical cavity. The quantum
gas is subject to a transverse pump laser field inducing a self-organization
phase transition, where the gas acquires a density modulation and photons are
scattered into the resonator. Photons leaking from the cavity allow for a
real-time and non-destructive readout of the system. We stabilize the mean
intra-cavity photon number through a micro-processor controlled feedback
architecture acting on the intensity of the transverse pump field. The feedback
scheme can keep the mean intra-cavity photon number
Description
Keywords
Journal Title
Conference Name
Journal ISSN
1367-2630
Volume Title
Publisher
Publisher DOI
Sponsorship
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (175329, 182650, QSIT NCCR)