Reference : Effective spin model for interband transport in a Wannier-Stark lattice system

	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Physics
	To cite this reference:	http://hdl.handle.net/2268/101432

Title :	Effective spin model for interband transport in a Wannier-Stark lattice system
Language :	English
Author, co-author :	Plötz, Patrick [ > > ]
	Schlagheck, Peter [Université de Liège - ULg > Département de physique > Physique quantique statistique >]
	Wimberger, Sandro [ > > ]
Publication date :	2011
Journal title :	European Physical Journal D -- Atoms, Molecules, Clusters & Optical Physics
Publisher :	Springer Science & Business Media B.V.
Volume :	63
Special issue title :	Hybrid quantum systems – new perspectives on quantum state control
Pages :	47
Audience :	International
ISSN :	1434-6060
City :	New York
Country :	NY
Abstract :	[en] We show that the interband dynamics in a tilted two-band Bose-Hubbard model can be reduced to an analytically accessible spin model in the case of resonant interband oscillations. This allows us to predict the revival time of these oscillations which decay and revive due to inter-particle interactions. The presented mapping onto the spin model and the so achieved reduction of complexity has interesting perspectives for future studies of many-body systems.
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/101432

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