Collective spin density excitation of fractional quantum Hall states in dilute ultra-cold Bose atoms

被引：3

作者：

Indra, Moumita ^{[1
]}

Majumder, Dwipesh ^{[1
]}

机构：

[1] Indian Inst Engn Sci & Technol, Dept Phys, Howrah, WB, India

来源：

SOLID STATE COMMUNICATIONS | 2020年 / 306卷 / 306期

关键词：

EINSTEIN CONDENSATION; QUANTIZATION; MONOPOLE; GAS;

D O I：

10.1016/j.ssc.2019.113796

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have studied collective spin density excitation of fractional quantum Hall effect (FQHE) in rotating Bose-Einstein condensation for the three filling fractions of first series of Jain's composite fermion sequences. We have considered short-ranged contact interactions between the Bose atoms as well as long range Coulomb interactions to compare the nature of the spectra with FQHE of electrons. Using Monte-Carlo method for finite but large number of particles, the lowest order collective modes of spin-reversed sectors is calculated here, by computing the energy differences of the respective excitons from the fully polarized ground states.

引用

页数：5