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Updated: Feb 7, 2026

Trapping of Micro Particles in Nanoplasmonic Optical Lattice
Published on: September 5, 2017
Absence of Landau damping in driven three-component Bose-Einstein condensate in optical lattices
Gavriil Shchedrin1, Daniel Jaschke2, Lincoln D Carr2
1Colorado School of Mines, Golden, Colorado, 80401, USA. shchedrin@mines.edu.
Abstract:
We explore the quantum many-body physics of a three-component Bose-Einstein condensate in an optical lattice driven by laser fields in V and Λ configurations. We obtain exact analytical expressions for the energy spectrum and amplitudes of elementary excitations, and discover symmetries among them. We demonstrate that the applied laser fields induce a gap in the otherwise gapless Bogoliubov spectrum. We find that Landau damping of the collective modes above the energy of the gap is carried by laser-induced roton modes and is considerably suppressed compared to the phonon-mediated damping endemic to undriven scalar condensates.
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