Year: 2025
Type: article
Abstract: We investigate the indistinguishability of polaritons in optically trapped Bose-Einstein condensates by implementing Hong-Ou-Mandel (HOM) interferometry and test the limitations of two-polariton interference in the coherent, limit-cycle, and thermal statistical regimes. We observe that the HOM dynamics of a circularly polarized condensate follows the condensate coherence time with the characteristic HOM dip approaching the classical limit. Linearly polarized condensates exhibit a combined effect of polariton bunching and two-polariton interference. Under elliptically polarized excitation, the temporal evolution of the spinor condensate results in the revival of the HOM dip at the spinor Larmor precession frequency.
DOI: 10.1103/nxx1-sc3x
Authors: S. Baryshev, I. Smirnov, I. Gnusov, T. Cookson, A. Zasedatelev, S. Kilin, P. G. Lagoudakis
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funder: Russian Science Foundation
Award: G5966750387
OpenAlex ID: W4414039402