Dynamic optical superlattices with topological bands

被引：41

作者：

Baur, Stefan K. ^{[1
]}

Schleier-Smith, Monika H. ^{[2
,3
,4
]}

Cooper, Nigel R. ^{[1
,3
]}

机构：

[1] Univ Cambridge, Cavendish Lab, TCM Grp, Cambridge CB3 0HE, England

[2] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

[3] Univ Munich, Fak Phys, D-80799 Munich, Germany

[4] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW A | 2014年 / 89卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

ARTIFICIAL MAGNETIC-FIELDS; COLD ATOMS; LATTICES; STATES;

D O I：

10.1103/PhysRevA.89.051605

中图分类号：

O43 [光学];

学科分类号：

070207 [光学];

摘要：

We introduce an all-optical approach to producing high-flux synthetic magnetic fields for neutral atoms or molecules by designing intrinsically time-periodic optical superlattices. A single laser source, modulated to generate two frequencies, suffices to create dynamic interference patterns which have topological Floquet energy bands. We propose a simple laser setup that realizes a tight-binding model with uniform flux and well-separated Chern bands. Our method relies only on the particles' scalar polarizability and far-detuned light.

引用

页数：5

共 52 条

[1]

Interferometric Approach to Measuring Band Topology in 2D Optical Lattices [J].

Abanin, Dmitry A. ;

Kitagawa, Takuya ;

Bloch, Immanuel ;

Demler, Eugene .

PHYSICAL REVIEW LETTERS, 2013, 110 (16)

[2]

Realization of the Hofstadter Hamiltonian with Ultracold Atoms in Optical Lattices [J].

Aidelsburger, M. ;

Atala, M. ;

Lohse, M. ;

Barreiro, J. T. ;

Paredes, B. ;

Bloch, I. .

PHYSICAL REVIEW LETTERS, 2013, 111 (18)

[3]

Experimental realization of strong effective magnetic fields in optical superlattice potentials [J].

Aidelsburger, M. ;

Atala, M. ;

Nascimbene, S. ;

Trotzky, S. ;

Chen, Y. -A. ;

Bloch, I. .

APPLIED PHYSICS B-LASERS AND OPTICS, 2013, 113 (01) :1-11

[4]

Experimental Realization of Strong Effective Magnetic Fields in an Optical Lattice [J].

Aidelsburger, M. ;

Atala, M. ;

Nascimbene, S. ;

Trotzky, S. ;

Chen, Y. -A. ;

Bloch, I. .

PHYSICAL REVIEW LETTERS, 2011, 107 (25)

[5]

Seeing Topological Order in Time-of-Flight Measurements [J].

Alba, E. ;

Fernandez-Gonzalvo, X. ;

Mur-Petit, J. ;

Pachos, J. K. ;

Garcia-Ripoll, J. J. .

PHYSICAL REVIEW LETTERS, 2011, 107 (23)

[6]

Edge-state instabilities of bosons in a topological band [J].

Barnett, Ryan .

PHYSICAL REVIEW A, 2013, 88 (06)

[7]

Adiabatic preparation of vortex lattices [J].

Baur, Stefan K. ;

Cooper, Nigel R. .

PHYSICAL REVIEW A, 2013, 88 (03)

[8]

Bloch I, 2012, NAT PHYS, V8, P267, DOI [10.1038/nphys2259, 10.1038/NPHYS2259]

[9]

Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas [J].

Cheuk, Lawrence W. ;

Sommer, Ariel T. ;

Hadzibabic, Zoran ;

Yefsah, Tarik ;

Bakr, Waseem S. ;

Zwierlein, Martin W. .

PHYSICAL REVIEW LETTERS, 2012, 109 (09)

[10]

Optical flux lattices for two-photon dressed states [J].

Cooper, N. R. ;

Dalibard, J. .

EPL, 2011, 95 (06)

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