Eur. Phys. J. Special Topics 217, 163-167 (2013)
https://doi.org/10.1140/epjst/e2013-01764-x

Regular Article

Weak coupling many-polaron description of ultracold bosonic impurities in a condensate

TQC, Universiteit Antwerpen, Universiteitsplein 1, 2610 Wilrijk (Antwerpen), Belgium

Received: 4 September 2012
Revised: 15 January 2013
Published online: 11 March 2013

Abstract

The weak coupling many-polaron formalism is applied to ultracold bosonic impurities in a Bose-Einstein condensate. This formalism allows calculating the ground state and response properties. We apply this to calculate both the inertial and spectral effective masses of the impurities and the response of the system to Bragg scattering.