Engineering Gaussian states of light from a planar microcavity
Authors: Van Regemortel M., Ravets S., Imamoglu A., Carusotto I., Wouters M.
Autors Affiliation: [Van Regemortel, Mathias; Wouters, Michiel] Univ Antwerp, TQC, Univ Pl 1, B-2610 Antwerp, Belgium.
[Ravets, Sylvain; Imamoglu, Atac] Swiss Fed Inst Technol, Inst Quantum Elect, CH-8093 Zurich, Switzerland.
[Carusotto, Iacopo] INO CNR BEC Ctr, Via Sommar 14, I-38123 Povo, Italy and Univ Trento, Dipartimento Fis, Via Sommar 14, I-38123 Povo, Italy.-1
Abstract: Quantum fluids of light in a nonlinear planar microcavity can exhibit antibunched photon statistics at short distances due to repulsive polariton interactions. We show that, despite the weakness of the nonlinearity, the antibunching signal can be amplified orders of magnitude with an appropriate free-space optics scheme to select and interfere output modes. Our results are understood from the unconventional photon blockade perspective by analyzing the approximate Gaussian output state of the microcavity. In a second part, we illustrate how the temporal and spatial profile of the density-density correlation function of a fluid of light can be reconstructed with free-space optics. Also here the nontrivial (anti)bunching signal can be amplified significantly by shaping the light emitted by the microcavity.
Journal/Review: SCIPOST PHYSICS
Volume: 5 (1) Pages from: 013-1 to: 013-24