Zero-Temperature Equation of State of a Two-Dimensional Bosonic Quantum Fluid with Finite-Range Interaction

被引：7

作者：

Tononi, Andrea ^{[1
,2
]}

机构：

[1] Univ Padua, Dipartimento Fis & Astron Galileo Galilei, Via Marzolo 8, I-35131 Padua, Italy

[2] Univ Padua, CNISM, Via Marzolo 8, I-35131 Padua, Italy

来源：

CONDENSED MATTER | 2019年 / 4卷 / 01期

关键词：

Bose-Einstein condensation; ultracold atoms; finite-range; equation of state; two-dimensional; BOSE-EINSTEIN CONDENSATION; HELIUM; GAS;

D O I：

10.3390/condmat4010020

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We derive the two-dimensional equation of state for a bosonic system of ultracold atoms interacting with a finite-range effective interaction. Within a functional integration approach, we employ a hydrodynamic parameterization of the bosonic field to calculate the superfluid equations of motion and the zero-temperature pressure. The ultraviolet divergences, naturally arising from the finite-range interaction, are regularized with an improved dimensional regularization technique.

引用

页码：1 / 11

页数：11

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