Observation of chiral edge states with neutral fermions in synthetic Hall ribbons

被引：633

作者：

Mancini, M. ^{[1
]}

Pagano, G. ^{[1
]}

Cappellini, G. ^{[2
]}

Livi, L. ^{[2
]}

Rider, M. ^{[3
,4
]}

Catani, J. ^{[2
,5
]}

Sias, C. ^{[2
,6
]}

Zoller, P. ^{[3
,4
]}

Inguscio, M. ^{[1
,2
,6
]}

Dalmonte, M. ^{[3
,4
]}

Fallani, L. ^{[1
,2
]}

机构：

[1] Univ Florence, Dept Phys & Astron, I-50019 Sesto Fiorentino, Italy

[2] European Lab Nonlinear Spect LENS, I-50019 Sesto Fiorentino, Italy

[3] Austrian Acad Sci, Inst Quantum Opt & Quantum Informat, A-6020 Innsbruck, Austria

[4] Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria

[5] CNR, INO, Sez Sesto Fiorentino, I-50019 Sesto Fiorentino, Italy

[6] Ist Nazl Ric Metrol INRIM, I-10135 Turin, Italy

来源：

SCIENCE | 2015年 / 349卷 / 6255期

基金：

奥地利科学基金会; 欧洲研究理事会;

关键词：

MAGNETIC-FIELDS; QUANTUM; REALIZATION; ATOMS; MODEL; GAS;

D O I：

10.1126/science.aaa8736

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Chiral edge states are a hallmark of quantum Hall physics. In electronic systems, they appear as a macroscopic consequence of the cyclotron orbits induced by a magnetic field, which are naturally truncated at the physical boundary of the sample. Here we report on the experimental realization of chiral edge states in a ribbon geometry with an ultracold gas of neutral fermions subjected to an artificial gauge field. By imaging individual sites along a synthetic dimension, encoded in the nuclear spin of the atoms, we detect the existence of the edge states and observe the edge-cyclotron orbits induced during quench dynamics. The realization of fermionic chiral edge states opens the door for edge state interferometry and the study of non-Abelian anyons in atomic systems.

引用

页码：1510 / 1513

页数：4

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