Verifying cross-Kerr induced number squeezing: a case study. Issue 21 (30th November 2017)

• Record Type: Journal Article
• Authors: Schmid, David; Marshall, Kevin; James, Daniel F. V.
• Is Part Of: Journal of modern optics. Volume 64:Issue 21(2017)
• Page Start: 2306
• Page End: 2315
• Publication Date: 2017-11-30
• Subjects: Cross-Kerr -- number squeezing -- photon statistics; Optics -- Periodicals; 535
• DOI: 10.1080/09500340.2017.1357852
• Languages: English
• ISSNs: 0950-0340

Abstract

Abstract: We analyse an experimental method for creating interesting nonclassical states by processing the entanglement generated when two large coherent states interact in a cross-Kerr medium. We specifically investigate the effects of loss and noise in every mode of the experiment, as well as the effect of 'binning' the post-selection outcomes. Even with these imperfections, we find an optimal set of currently achievable parameters which would allow a proof-of-principle demonstration of number squeezing in states with large mean photon number. We discuss other useful states which can be generated with the same experimental tools, including a class of states which contain coherent superpositions of differing photon numbers, e.g. good approximations to the state1 2 ( | 0 ⟩ + | 20 ⟩ ) . Finally, we suggest one possible application of this state in the field of optomechanics.