Low-Power Cross-Phase Modulation in a Metastable Xenon-Filled Cavity for Quantum Information Applications
arXiv:1508.05993 · doi:10.1103/PhysRevA.92.053808
Abstract
Weak single-photon nonlinearities have many potential applications in quantum computing and quantum information. Here we demonstrate a relatively simple system for producing low-power cross-phase modulation using metastable xenon inside a high finesse cavity. The use of a noble gas such as xenon eliminates the contamination of the high-finesse mirrors that can occur when using alkali metal vapors such as rubidium. Cross-phase shifts of 5 mrad with 4.5 fJ control pulses were demonstrated. Numerical solutions of the master equation are in good agreement with the experimental results, and they predict that cross-phase shifts greater than 1 mrad per control photon should be achievable by reducing the size of the cavity.
7 pages, 7 figures
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- Optically enhanced production of metastable xenon
- Generating strong anti-bunching by interfering with coherent states
- Maximizing optical production of metastable xenon
- Cross-Phase Modulation Enhancement Via a Resonating Cavity: Semiclassical Description