Stochastic-field approach to the quench dynamics of the one-dimensional Bose polaron
We consider the dynamics of a quantum impurity after a sudden interaction quench into a one-dimensional degenerate Bose gas. We use the Keldysh path-integral formalism to derive a truncated Wigner-like approach that takes the back action of the impurity onto the condensate into account already on th...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2021-09-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.3.033212 |