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arXiv · 1809.00171

Formation of Solitonic Bound State via Light-Matter Interaction

Priyam Das·Ayan Khan·Anirban Pathak
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Abstract

Exchange of energy by means of light-matter interaction provides a new dimension to various nonlinear dynamical systems. Here, the effects of light-matter interaction are investigated for a situation, where two counter-propagating, orthogonally polarized laser pulses are incident on the atomic condensate. It's observed that a localized laser pulse profile can induce localized modes in Bose-Einstein condensate. A stability analysis performed using Vakhitov-Kolokolov-like criterion has established that these localized modes are stable, when the atom-atom interaction is repulsive. The cooperative effects of light-matter interactions and atom-atom interactions on the Lieb-mode have been studied in the stable region through atomic dispersion, revealing the signature of bound state formation when the optical potential is P\"oschl-Teller type. The energy diagram also indicates a continuous transfer of energy from the laser pulses to the atoms as the light-matter interaction changes its sign.

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Priyam Das, Ayan Khan, Anirban Pathak. 2018-09-01. Formation of Solitonic Bound State via Light-Matter Interaction. https://doi.org/10.1140/epjd%2Fe2020-10251-0

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