Low-Power Cross-Phase Modulation in a Metastable Xenon-Filled Cavity for Quantum Information Applications

Autor:	Hickman, G. T., Pittman, T. B., Franson, J. D.
Rok vydání:	2015
Předmět:	Quantum Physics Physics - Atomic Physics
Zdroj:	Phys. Rev. A 92, 053808 (2015)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevA.92.053808
Popis:	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. Comment: 7 pages, 7 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1508.05993 Zobrazit plný text záznamu View this record from Arxiv