Quantum feedback control of atomic motion in an optical cavity.
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.
Steck
Daniel A
DA
Theoretical Division (T-8), MS B285, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
Jacobs
Kurt
K
Mabuchi
Hideo
H
Bhattacharya
Tanmoy
T
Habib
Salman
S