Synthetic Dimensions and Spin-Orbit Coupling with an Optical Clock Transition

被引：244

作者：

Livi, L. F. ^{[1
,5
]}

Cappellini, G. ^{[2
,5
]}

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

Franchi, L. ^{[2
]}

Clivati, C. ^{[4
]}

Frittelli, M. ^{[4
]}

Levi, F. ^{[4
]}

Calonico, D. ^{[4
]}

Catani, J. ^{[1
,5
,6
]}

Inguscio, M. ^{[1
,2
,5
]}

Fallani, L. ^{[1
,2
,5
,6
]}

机构：

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

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

[3] Univ Hamburg, ILP Inst Laserphys, D-20355 Hamburg, Germany

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

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

[6] Ist Nazl Fis Nucl, Sez Firenze, I-50019 Sesto Fiorentino, Italy

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 117卷 / 22期

关键词：

EDGE STATES; ATOMS; REALIZATION; FERMIONS; GASES;

D O I：

10.1103/PhysRevLett.117.220401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate a novel way of synthesizing spin-orbit interactions in ultracold quantum gases, based on a single-photon optical clock transition coupling two long-lived electronic states of two-electron 173Yb atoms. By mapping the electronic states onto effective sites along a synthetic "electronic" dimension, we have engineered fermionic ladders with synthetic magnetic flux in an experimental configuration that has allowed us to achieve uniform fluxes on a lattice with minimal requirements and unprecedented tunability. We have detected the spin-orbit coupling with fiber-link-enhanced clock spectroscopy and directly measured the emergence of chiral edge currents, probing them as a function of the flux. These results open new directions for the investigation of topological states of matter with ultracold atomic gases.

引用

页数：5

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