Document Detail


The random mass Dirac model and long-range correlations on an integrated optical platform.
MedLine Citation:
PMID:  23340408     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
Robert Keil; Julia M Zeuner; Felix Dreisow; Matthias Heinrich; Andreas Tünnermann; Stefan Nolte; Alexander Szameit
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Nature communications     Volume:  4     ISSN:  2041-1723     ISO Abbreviation:  Nat Commun     Publication Date:  2013  
Date Detail:
Created Date:  2013-01-23     Completed Date:  2013-06-20     Revised Date:  2013-07-31    
Medline Journal Info:
Nlm Unique ID:  101528555     Medline TA:  Nat Commun     Country:  England    
Other Details:
Languages:  eng     Pagination:  1368     Citation Subset:  -    
Affiliation:
Institute of Applied Physics, Abbe Center of Photonics, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany. robert.keil@uni-jena.de
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Erratum In:
Nat Commun. 2013;4:1545

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