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.
| Original language | English |
|---|---|
| Article number | 013805 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 80 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 6 Aug 2009 |
| Externally published | Yes |
Fingerprint
Dive into the research topics of 'Quantum feedback by discrete quantum nondemolition measurements: Towards on-demand generation of photon-number states'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver