Inhomogeneous mass trap for dark-state polaritons in atomic media

• URL: http://arxiv.org/abs/2603.18451v1
• Date: Thu, 19 Mar 2026 03:27:41 GMT
• Title: Inhomogeneous mass trap for dark-state polaritons in atomic media
• Abstract summary: We show that a trap can arise from a spatially inhomogeneous effective mass of the dark-state polariton.<n>We provide a possible route toward realizing Bose-Einstein condensation of dark-state polaritons in a trapping potential.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The generation of a trapping potential for dark-state polaritons in a two-dimensional electromagnetically induced transparency system is theoretically studied. We show that such a trap can arise from a spatially inhomogeneous effective mass of the dark-state polariton. Because this mass inhomogeneity can be engineered by tuning the parameters of the control fields, the motion, spatial profile, and coherent behavior of bound dark-state polaritons can be tailored accordingly. Our results enable spatial controls of optical information and provide a possible route toward realizing Bose-Einstein condensation of dark-state polaritons in a trapping potential.

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