Scientific Results

Probing few-particle Laughlin states of photons via correlation measurements

Year: 2014

Authors: Umucalilar R.O., Wouters M., Carusotto I.

Autors Affiliation: TQC, Universiteit Antwerpen, Universiteitsplein 1, B-2610 Antwerpen, Belgium; INO-CNR BEC Center and Dipartimento di Fisica, Universita di Trento, I-38123 Povo, Italy

Abstract: We propose methods to create and observe Laughlin-like states of photons in a strongly nonlinear optical cavity. Such states of strongly interacting photons can be prepared by pumping the cavity with a Laguerre-Gauss beam, which has a well-defined orbital angular momentum per photon. The Laughlin-like states appear as sharp resonances in the particle-number-resolved transmission spectrum. Power spectrum and second-order correlation function measurements yield unambiguous signatures of these few-particle strongly correlated states.

Journal/Review: PHYSICAL REVIEW A

Volume: 89 (2)      Pages from: 023803  to: 023803

More Information: R.O.U. is supported by the FWO through a Pegasus Marie Curie Fellowship. M. W. and R.O.U. acknowledge financial support from the FWO through the Odysseus Programme. I. C. acknowledges partial financial support from ERC via the QGBE grant and from the Autonomous Province of Trento, Call \”Grandi Progetti 2012,\” project \”On silicon chip quantum optics for quantum computing and secure communications – SiQuro.\” Support from the POLATOM ESF network is also acknowledged. We are grateful to T. Volz, G. Molina-Terriza, and J. Simon for useful discussions.
DOI: 10.1103/PhysRevA.89.023803

Citations: 9
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