Quantum acoustic bremsstrahlung of impurity atoms in a Bose--Einstein condensate
Mazets, I. E.
Original · EN
We study the process of scattering of two impurity atoms accompanied by generation of an elementary excitation in a surrounding Bose--Einstein condensate. This process, unlike the phonon generation by a single impurity atom, has no velocity threshold and can be regarded as a quantum acoustic analog of a bremsstrahlung in quantum electrodynamics.
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