Authors

R. Keil; J. M. Zeuner; F. Dreisow; M. Heinrich; A. Tunnermann; S. Nolte;A. Szameit

Comments

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Abbreviated Journal Title

Nat. Commun.

Keywords

DOPED SPIN-PEIERLS; WAVE-GUIDE ARRAYS; ANDERSON LOCALIZATION; PHOTONIC; LATTICES; DYNAMIC LOCALIZATION; NEUTRON-SCATTERING; CUGEO3; LADDER; TRANSITION; SYSTEMS; Multidisciplinary Sciences

Abstract

Long-range correlation-the non-local interdependence of distant events-is a crucial feature in many natural and artificial environments. In the context of solid state physics, impurity spins in doped spin chains and ladders with antiferromagnetic interaction are a prominent manifestation of this phenomenon, which is the physical origin of the unusual magnetic and thermodynamic properties of these materials. It turns out that such systems are described by a one-dimensional Dirac equation for a relativistic fermion with random mass. Here we present an optical configuration, which implements this one-dimensional random mass Dirac equation on a chip. On this platform, we provide a miniaturized optical test-bed for the physics of Dirac fermions with variable mass, as well as of antiferromagnetic spin systems. Moreover, our data suggest the occurence of long-range correlations in an integrated optical device, despite the exclusively short-ranged interactions between the constituting channels.

Journal Title

Nature Communications

Volume

4

Publication Date

1-1-2013

Document Type

Article

Language

English

First Page

8

WOS Identifier

WOS:000316614600038

ISSN

2041-1723

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