Impurity in a three-dimensional unitary Bose gas
| Autor: | Volodymyr Pastukhov, O. I. Hryhorchak, G. Panochko |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Physics
Condensed Matter::Quantum Gases Bose gas Condensed matter physics Binding energy General Physics and Astronomy FOS: Physical sciences Polaron 01 natural sciences Unitary state 010305 fluids & plasmas Effective mass (solid-state physics) Impurity Quantum Gases (cond-mat.quant-gas) 0103 physical sciences Quasiparticle Condensed Matter::Strongly Correlated Electrons Local-density approximation 010306 general physics Condensed Matter - Quantum Gases |
| Popis: | By using simple and efficient method we discuss properties of a single impurity immersed in three-dimensional Bose gas with the interaction between particles tuned to unitary limit. Particularly, adopting the mean-field-like approximation we present the first estimations for the low-momentum parameters of the impurity spectrum, namely, the binding energy, the effective mass and the quasiparticle residue both for repulsive and attractive Bose polarons in the unitary gas. 6 pages, 9 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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