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arXiv · quant-ph/0106086

Removal of a single photon by adaptive absorption

John Calsamiglia·Stephen M. Barnett·Norbert Lütkenhaus·Kalle-Antti Suominen
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Abstract

We present a method to remove, using only linear optics, exactly one photon from a field-mode. This is achieved by putting the system in contact with an absorbing environment which is under continuous monitoring. A feedback mechanism then decouples the system from the environment as soon as the first photon is absorbed. We propose a possible scheme to implement this process and provide the theoretical tools to describe it.

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John Calsamiglia, Stephen M. Barnett, Norbert Lütkenhaus, Kalle-Antti Suominen. 2001-06-15. Removal of a single photon by adaptive absorption. https://doi.org/10.1103/physreva.64.043814

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