Phenomenological variational model with complex coupling captures Bose polaron decay and reproduces main spectral and dynamical results from recent experiments.
(4) with Im( ω) < 0; in the limit Γ = 0, ω1 (ω2) is the standard attractive (repulsive) polaron [12]
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Phenomenological model of decaying Bose polarons
Phenomenological variational model with complex coupling captures Bose polaron decay and reproduces main spectral and dynamical results from recent experiments.