Observability of a sharp Majorana transition in a few-body model

被引：2

作者：

Bland, Jared E. ^{[1
]}

Greene, Chris H. ^{[1
,2
]}

Wehefritz-Kaufmann, Birgit ^{[1
,2
,3
]}

机构：

[1] Purdue Univ, Dept Phys & Astron, W Lafayette, IN 47907 USA

[2] Purdue Univ, Purdue Quantum Sci & Engn Inst, W Lafayette, IN 47907 USA

[3] Purdue Univ, Dept Math, W Lafayette, IN 47907 USA

来源：

PHYSICAL REVIEW A | 2021年 / 103卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevA.103.023310

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose experimentally observable signatures of topological Majorana quasiparticles in the few-body limit of the interacting cold-atom model of Iemini et al. [F. Iemini, L Mazza, L. Fallani, P. Zoller, R. Fazio, and M. Dalmonte, Phys. Rev. Lett. 118.200404 (2017)]. In this limit, the total on-site density and single-body correlations change smoothly with the model parameters, while the calculated mutual information of opposite ends of the lattice indicates a sharp transition of the system to a topological ground state. Furthermore, local-density and -parity measurements provide an experimentally viable path for observing the ground-state Majorana quasiparticles in ultracold atoms. Our results lay out a promising future for utilizing few-body systems as a testing ground for Majorana physics.

引用

页数：6