English

Exciton-polariton condensates in zero-, one-, and two-dimensional lattices

Quantum Gases 2015-10-29 v1

Abstract

Microcavity exciton-polaritons are quantum quasi-particles arising from the strong light-matter coupling. They have exhibited rich quantum dynamics rooted from bosonic nature and inherent non-equilibrium condition. Dynamical condensation in microcavity exciton-polaritons has been observed at much elevated temperatures in comparison to ultrocold atom condensates. Recently, we have investigated the behavior of exciton-polariton condensates in artificial trap and lattice geometries in zero-dimension, one-dimension (1D) and two-dimension (2D). Coherent π\pi-state with p-wave order in a 1D condensate array and d-orbital state in a 2D square lattice are observed. We anticipate that the preparation of high-orbital condensates can be further extended to probe dynamical quantum phase transition in a controlled manner as quantum emulation applications.

Keywords

Cite

@article{arxiv.1510.08197,
  title  = {Exciton-polariton condensates in zero-, one-, and two-dimensional lattices},
  author = {Na Young Kim and Yoshihisa Yamamoto and Shoko Utsunomiya and Kenichiro Kusudo and Sven Hoefling and Alfred Forchel},
  journal= {arXiv preprint arXiv:1510.08197},
  year   = {2015}
}

Comments

20 pages; Chap.8 in Springer&Verlag book (2013) on "Physics of Quantum Fluids: New Trends and Hot Topics in Atomic and Polariton Condensates" eds. A. Bramati and M. Modugno