MINES ParisTech CAS - Centre automatique et systèmes

Quantum feedback by discrete quantum nondemolition measurements: Towards on-demand generation of photon-number states

Authors: I. Dotsenko, M. Mirrahimi,M. Brune, S. Haroche, J.-M. Raimond, P. Rouchon Physical Review A, Vol 80 no 1, 013805, 2009 DOI: 10.1103/PhysRevA.80.013805
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 non-demolition 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, Fock states are efficiently produced and protected against decoherence.
Download PDF
BibTeX:
@Article{,
author = {M. Mirrahimi I. Dotsenko, M. Brune, S. Haroche, J.-M. Raimond, P. Rouchon},
title = {Quantum feedback by discrete quantum nondemolition measurements: Towards on-demand generation of photon-number states},
journal = {Physical Review A},
volume = {80},
number = {1},
pages = {013805},
year = {2009},
abstract = {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.},
location = {},
keywords = {}}