Quantum Transport of Strongly Interacting Photons in a One-Dimensional Nonlinear Waveguide

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Quantum Transport of Strongly Interacting Photons in a One-Dimensional Nonlinear Waveguide

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Title: Quantum Transport of Strongly Interacting Photons in a One-Dimensional Nonlinear Waveguide
Author: Gritsev, Vladimir; Hafezi, Mohammad; Chang, Darrick E.; Demler, Eugene A.; Lukin, Mikhail D.

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Citation: Hafezi, Mohammad, Darrick E. Chang, Vladimir Gritsev, Eugene A. Demler, and Mikhail D. Lukin. 2012. Quantum transport of strongly interacting photons in a one-dimensional nonlinear waveguide. Physical Review A 85(1): 013822.
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Abstract: We present a theoretical technique for solving the quantum transport problem of a few photons through a one-dimensional, strongly nonlinear waveguide. We specifically consider the situation where the evolution of the optical field is governed by the quantum nonlinear Schrödinger equation. Although this kind of nonlinearity is quite general, we focus on a realistic implementation involving cold atoms loaded in a hollow-core optical fiber, where the atomic system provides a tunable nonlinearity that can be large even at a single-photon level. In particular, we show that when the interaction between photons is effectively repulsive, the transmission of multiphoton components of the field is suppressed. This leads to antibunching of the transmitted light and indicates that the system acts as a single-photon switch. On the other hand, in the case of attractive interaction, the system can exhibit either antibunching or bunching, which is in stark contrast to semiclassical calculations. We show that the bunching behavior is related to the resonant excitation of bound states of photons inside the system.
Published Version: doi:10.1103/PhysRevA.85.013822
Other Sources: http://arxiv.org/abs/0911.4766
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:8148823

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  • FAS Scholarly Articles [6948]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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