Mean-field study of repulsive 2D and 3D Bose polarons

被引：16

作者：

Hryhorchak, O. ^{[1
]}

Panochko, G. ^{[2
]}

Pastukhov, V ^{[1
]}

机构：

[1] Ivan Franko Natl Univ Lviv, Dept Theoret Phys, 12 Drahomanov Str, Lvov, Ukraine

[2] Ivan Franko Natl Univ Lviv, Dept Optoelect & Informat Technol, 107 Tarnavskyj Str, Lvov, Ukraine

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2020年 / 53卷 / 20期

关键词：

Bose polaron; mean-field approximation; nonlinear Schrodinger equation; GROUND-STATE; VORTEX;

D O I：

10.1088/1361-6455/abb3ab

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The detailed mean-field (MF) treatment of the Bose polaron problem in two and three dimensions is presented. Particularly, assuming that impurity is immersed in the dilute Bose gas and interacts with bosons via the hard-sphere two-body potential, we calculate the low-momentum parameters of its spectrum, namely, the binding energy and the effective mass. The limits of applicability of the MF approach to a problem of mobile impurity in Bose-Einstein condensates are discussed by comparing our results to the Monte Carlo simulations data.

引用

页数：8

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