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Baas A, Karr JP, Romanelli M, et al. Quantum degeneracy of microcavity polaritons. Phys Rev Lett. 2006;96(17):176401doi: 10.1103/PhysRevLett.96.176401.
Baas, A., Karr, J. P., Romanelli, M., Bramati, A., & Giacobino, E. (2006). Quantum degeneracy of microcavity polaritons. Physical review letters, 96(17), 176401. https://doi.org/10.1103/PhysRevLett.96.176401
Baas, A, et al. "Quantum degeneracy of microcavity polaritons." Physical review letters vol. 96,17 (2006): 176401. doi: https://doi.org/10.1103/PhysRevLett.96.176401
Baas A, Karr JP, Romanelli M, Bramati A, Giacobino E. Quantum degeneracy of microcavity polaritons. Phys Rev Lett. 2006 May 05;96(17):176401. doi: 10.1103/PhysRevLett.96.176401. Epub 2006 May 01. PMID: 16712316.
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Phys Rev Lett. 2006 May 05;96(17):176401. doi: 10.1103/PhysRevLett.96.176401. Epub 2006 May 01.

Quantum degeneracy of microcavity polaritons.

Physical review letters

A Baas, J-Ph Karr, M Romanelli, A Bramati, E Giacobino

Affiliations

  1. Laboratoire Kastler Brossel, Université Paris 6, Ecole Normale Supérieure et CNRS, UPMC Case 74, France. [email protected]

PMID: 16712316 DOI: 10.1103/PhysRevLett.96.176401

Abstract

We investigate experimentally one of the main features of a quantum fluid constituted by exciton polaritons in a semiconductor microcavity, that is, quantum degeneracy of a macroscopic fraction of the particles. We show that resonant pumping allows us to create a macroscopic population of polaritons in one quantum state. Furthermore, we demonstrate that parametric polariton scattering results in the transfer of a macroscopic population of polariton from one single quantum state into another one. Finally, we briefly outline a simple method which provides direct evidence of the first-order spatial coherence of the transferred population.

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