Bulletin of the American Physical Society
APS March Meeting 2012
Volume 57, Number 1
Monday–Friday, February 27–March 2 2012; Boston, Massachusetts
Session B29: Focus Session: Quantum Optics with Superconducting Circuits: Many-Body Physics, Phase Transitions, & Bistability
11:15 AM–1:51 PM,
Monday, February 27, 2012
Sponsoring Unit: GQI
Chair: David Schuster, University of Chicago
Abstract ID: BAPS.2012.MAR.B29.1
Abstract: B29.00001 : Cavity-Free Photon Blockade Induced by Many-Body Bound States*
11:15 AM–11:27 AM
Preview Abstract Abstract
We show theoretically that a variety of strong quantum nonlinear phenomena occur in a completely open one-dimensional waveguide coupled to an N-type four-level system. This system could be realized, for example, in experiments using superconducting circuits. We focus on photon blockade, photon-induced tunneling, bunching or anti-bunching, and the creation of single-photon states, all in the absence of a cavity. Many-body bound states appear due to the strong photon-photon correlation mediated by the four-level system. These bound states cause photon blockade, generating a sub-Poissonian single-photon source . Such a source is crucial for quantum cryptography and distributed quantum networking; our work thus supports the notion that open quantum systems can play a critical role in the manipulation of individual, mobile quanta, a key goal of quantum communication.  H. Zheng, D. J. Gauthier, and H. U. Baranger, Phys. Rev. Lett. in press (2011), arXiv:1107.0309.
*Supported by the U.S. Office of Naval Research, the U.S. NSF (TAMOP program), and the Fitzpatrick Inst. for Photonics.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2012.MAR.B29.1
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