Cavity-Free scheme for nondestructive detection of a single optical photon

Keyu Xia; Mattias Johnsson; Peter L. Knight; Jason Twamley

doi:10.1103/PhysRevLett.116.023601

Cavity-Free scheme for nondestructive detection of a single optical photon

Keyu Xia, Mattias Johnsson, Peter L. Knight, Jason Twamley

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Abstract

Detecting a single photon without absorbing it is a long-standing challenge in quantum optics. All experiments demonstrating the nondestructive detection of a photon make use of a high quality cavity. We present a cavity-free scheme for nondestructive single-photon detection. By pumping a nonlinear medium we implement an interfield Rabi oscillation which leads to a ∼π phase shift on a weak probe coherent laser field in the presence of a single signal photon without destroying the signal photon. Our cavity-free scheme operates with a fast intrinsic time scale in comparison with similar cavity-based schemes. We implement a full real-space multimode numerical analysis of the interacting photonic modes and confirm the validity of our nondestructive scheme in the multimode case.

Original language	English
Article number	023601
Pages (from-to)	1-5
Number of pages	5
Journal	Physical Review Letters
Volume	116
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevLett.116.023601
Publication status	Published - 13 Jan 2016

Bibliographical note

Xia, K., Johnsson, M., Knight, P. L., Twamley, J., Physical review letters, 116(2), 023601, 2016. Copyright 2016 by the American Physical Society. The original article can be found at http://dx.doi.org/10.1103/PhysRevLett.116.023601.

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abstract = "Detecting a single photon without absorbing it is a long-standing challenge in quantum optics. All experiments demonstrating the nondestructive detection of a photon make use of a high quality cavity. We present a cavity-free scheme for nondestructive single-photon detection. By pumping a nonlinear medium we implement an interfield Rabi oscillation which leads to a ∼π phase shift on a weak probe coherent laser field in the presence of a single signal photon without destroying the signal photon. Our cavity-free scheme operates with a fast intrinsic time scale in comparison with similar cavity-based schemes. We implement a full real-space multimode numerical analysis of the interacting photonic modes and confirm the validity of our nondestructive scheme in the multimode case.",

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Cavity-Free scheme for nondestructive detection of a single optical photon

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