Fate of 1D Spin-Charge Separation Away from Fermi Points

Reference : Fate of 1D Spin-Charge Separation Away from Fermi Points


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Physics
	To cite this reference:	http://hdl.handle.net/10993/20249

Title :	Fate of 1D Spin-Charge Separation Away from Fermi Points
Language :	English
Author, co-author :	Schmidt, Thomas [Yale University > Department of Physics]
	Imambekov, Adilet [> >]
	Glazman, Leonid I. [> >]
Publication date :	2010
Journal title :	Physical Review Letters
Volume :	104
Pages :	116403
Peer reviewed :	Yes
Keywords :	[en] 71.10.Pm
Abstract :	[en] We consider the dynamic response functions of interacting one dimensional spin-$1/2$ fermions at arbitrary momenta. We build a nonperturbative zero-temperature theory of the threshold singularities using mobile impurity Hamiltonians. The interaction induced low-energy spin-charge separation and power-law threshold singularities survive away from Fermi points. We express the threshold exponents in terms of the spinon spectrum.
Permalink :	http://hdl.handle.net/10993/20249
DOI :	10.1103/PhysRevLett.104.116403
Other URL :	http://link.aps.org/doi/10.1103/PhysRevLett.104.116403

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