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arXiv · 0902.1372

Quantum information processing with a single photon by input-output process regarding low-Q cavities

Jun-Hong An·M. Feng·C. H. Oh
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Abstract

Both cavity QED and photons are promising candidates for quantum information processing. We consider a combination of both candidates with a single photon going through spatially separate cavities to entangle the atomic qubits, based on the input-output process of the cavities. We present a general expression for the input-output process regarding the low-Q cavity confining a single atom, which works in a wide range of parameters. Focusing on low-Q cavity case, we propose some schemes for quantum information processing with Faraday rotation using single photons, which is much different from the high-Q cavity and strong coupling cases.

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Jun-Hong An, M. Feng, C. H. Oh. 2009-02-09. Quantum information processing with a single photon by input-output process regarding low-Q cavities. https://doi.org/10.1103/physreva.79.032303

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