Bose--Hubbard Models Coupled to Cavity Light Fields

Details Bose--Hubbard Models Coupled to Cavity Light Fields Bose--Hubbard Models Coupled to Cavity Light Fields

2009-08-18

arxiv.org/abs/0908.2647v2

Phys. Rev. A 81, 023617 (2010)

Physics

Condensed Matter

Strongly Correlated Electrons

16 pages, 17 figures

Scientific paper

10.1103/PhysRevA.81.023617

Recent experiments on strongly coupled cavity quantum electrodynamics present new directions in "matter-light" systems. Following on from our previous work [Phys. Rev. Lett. 102, 135301 (2009)] we investigate Bose-Hubbard models coupled to a cavity light field. We discuss the emergence of photoexcitations or "polaritons" within the Mott phase, and obtain the complete variational phase diagram. Exploiting connections to the super-radiance transition in the Dicke model we discuss the nature of polariton condensation within this novel state. Incorporating the effects of carrier superfluidity, we identify a first-order transition between the superradiant Mott phase and the single component atomic superfluid. The overall predictions of mean field theory are in excellent agreement with exact diagonalization and we provide details of superfluid fractions, density fluctuations, and finite size effects. We highlight connections to recent work on coupled cavity arrays.

Affiliated with

Also associated with

No associations

Rating

Bose--Hubbard Models Coupled to Cavity Light Fields does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Bose--Hubbard Models Coupled to Cavity Light Fields, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bose--Hubbard Models Coupled to Cavity Light Fields will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-215817