Liberating Efimov Physics from Three Dimensions

被引：36

作者：

Nishida, Yusuke ^{[1
]}

Tan, Shina ^{[2
]}

机构：

[1] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA

[2] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA

来源：

FEW-BODY SYSTEMS | 2011年 / 51卷 / 2-4期

关键词：

SHORT-RANGE INTERACTIONS; 3-BODY SYSTEM; ENERGY-LEVELS; BOSONS; HALOS; MODEL;

D O I：

10.1007/s00601-011-0243-8

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

When two particles attract via a resonant short-range interaction, three particles always form an infinite tower of bound states characterized by a discrete scaling symmetry. It has been considered that this Efimov effect exists only in three dimensions. Here we review how the Efimov physics can be liberated from three dimensions by considering two-body and three-body interactions in mixed dimensions and four-body interaction in one dimension. In such new systems, intriguing phenomena appear, such as confinement-induced Efimov effect, Bose-Fermi crossover in Efimov spectrum, and formation of interlayer Efimov trimers. Some of them are observable in ultracold atom experiments and we believe that this study significantly broadens our horizons of universal Efimov physics.

引用

页码：191 / 206

页数：16

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