TY - JOUR
T1 - Quantum feedback by discrete quantum nondemolition measurements
T2 - Towards on-demand generation of photon-number states
AU - Dotsenko, I.
AU - Mirrahimi, M.
AU - Brune, M.
AU - Haroche, S.
AU - Raimond, J. M.
AU - Rouchon, P.
PY - 2009/8/6
Y1 - 2009/8/6
N2 - We propose a quantum feedback scheme for the preparation and protection of photon-number states of light trapped in a high- Q microwave cavity. A quantum nondemolition measurement of the cavity field provides information on the photon-number distribution. The feedback loop is closed by injecting into the cavity a coherent pulse adjusted to increase the probability of the target photon number. The efficiency and reliability of the closed-loop state stabilization is assessed by quantum Monte Carlo simulations. We show that, in realistic experimental conditions, the Fock states are efficiently produced and protected against decoherence.
AB - We propose a quantum feedback scheme for the preparation and protection of photon-number states of light trapped in a high- Q microwave cavity. A quantum nondemolition measurement of the cavity field provides information on the photon-number distribution. The feedback loop is closed by injecting into the cavity a coherent pulse adjusted to increase the probability of the target photon number. The efficiency and reliability of the closed-loop state stabilization is assessed by quantum Monte Carlo simulations. We show that, in realistic experimental conditions, the Fock states are efficiently produced and protected against decoherence.
U2 - 10.1103/PhysRevA.80.013805
DO - 10.1103/PhysRevA.80.013805
M3 - Article
AN - SCOPUS:68549109659
SN - 1050-2947
VL - 80
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 1
M1 - 013805
ER -