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Abstract: Both cavity QED and photons are promising candidates for quantum informationprocessing. We consider a combination of both candidates with a single photongoing through spatially separate cavities to entangle the atomic qubits, basedon the input-output process of the cavities. We present a general expressionfor the input-output process regarding the low-Q cavity confining a singleatom, which works in a wide range of parameters. Focusing on low-Q cavity case,we propose some schemes for quantum information processing with Faradayrotation using single photons, which is much different from the high-Q cavityand strong coupling cases.



Author: Jun-Hong An, M. Feng, C. H. Oh

Source: https://arxiv.org/







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