Statistics of Fractionalized Excitations through Threshold Spectroscopy

被引：40

作者：

Morampudi, Siddhardh C. ^{[1
]}

Turner, Ari M. ^{[2
,3
,4
]}

Pollmann, Frank ^{[1
,5
]}

Wilczek, Frank ^{[6
,7
,8
,9
]}

机构：

[1] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany

[2] Technion, Phys Dept, IL-32000 Haifa, Israel

[3] Johns Hopkins Univ, Inst Quantum Matter, Baltimore, MD 21218 USA

[4] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[5] Tech Univ Munich, D-85747 Garching, Germany

[6] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA

[7] Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden

[8] Arizona State Univ, Dept Phys & Origins Project, Tempe, AZ 25287 USA

[9] Shanghai Jiao Tong Univ, Wilczek Quantum Ctr, Dept Phys & Astron, Shanghai 200240, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2017年 / 118卷 / 22期

关键词：

RESONATING-VALENCE-BOND; NON-ABELIAN ANYONS; KAGOME-LATTICE; QUANTUM-MECHANICS; SPIN LIQUIDS; HALL STATES; SUPERCONDUCTIVITY; TORUS; PARTICLES; FLUX;

D O I：

10.1103/PhysRevLett.118.227201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that neutral anyonic excitations have a signature in spectroscopic measurements of materials: The low-energy onset of spectral functions near the threshold follows universal power laws with an exponent that depends only on the statistics of the anyons. This provides a route, using experimental techniques such as neutron scattering and tunneling spectroscopy, for detecting anyonic statistics in topologically ordered states such as gapped quantum spin liquids and hypothesized fractional Chern insulators. Our calculations also explain some recent theoretical results in spin systems.

引用

页数：5