title: Quantum feedback control of atomic motion in an optical cavity.
abstract: We study quantum feedback cooling of atomic motion in an optical cavity. We design a feedback algorithm that can cool the atom to the ground state of the optical potential with high efficiency despite the nonlinear nature of this problem. An important ingredient is a simplified state-estimation algorithm, necessary for a real-time implementation of the feedback loop. We also describe the critical role of parity dynamics in the cooling process and present a simple theory that predicts the achievable steady-state atomic energies.
authors.affiliation: Theoretical Division (T-8), MS B285, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: Daniel A
authors.initials: DA
authors.lastname: Steck
authors.forename: Kurt
authors.initials: K
authors.lastname: Jacobs
authors.forename: Hideo
authors.initials: H
authors.lastname: Mabuchi
authors.forename: Tanmoy
authors.initials: T
authors.lastname: Bhattacharya
authors.forename: Salman
authors.initials: S
authors.lastname: Habib