Work

Evolution of a single spin in ideal Bose gas at finite temperatures

Year: 2026

Type: article

Abstract: We study the finite-temperature dynamics of non-interacting bosons with a single static spinful impurity immersed. A non-zero contact boson-impurity pairwise interaction is assumed only for the spin-up impurity state. By tracing out bosonic degrees of freedom, the exact time evolution of the impurity spin is calculated for pure and mixed initial ensembles of states. The time-dependent momentum distribution of bosons initially created in the Bose-condensed state and driven by the interaction with spin is analyzed.

Source: Journal of Physics A Mathematical and Theoretical

DOI: 10.1088/1751-8121/ae7229

Authors: O Hryhorchak, G Panochko, V Pastukhov

Institution: Lviv University

Language: English

Topic: Cold Atom Physics and Bose-Einstein Condensates

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,325

Funders: National Research Foundation of Ukraine, National Research Foundation, Ministry of Education and Science of Ukraine