Fourier transform of the $2k_F$ Luttinger liquid density correlation function with different spin and charge velocities

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dc.creatorIucci, A.
dc.creatorFiete, G. A.
dc.creatorGiamarchi, T.
dc.date2007-02-12
dc.date2007-05-25
dc.date.accessioned2026-07-07T08:05:47Z
dc.date.available2026-07-07T08:05:47Z
dc.descriptionWe obtain a closed-form analytical expression for the zero temperature Fourier transform of the $2k_F$ component of the density-density correlation function in a Luttinger liquid with different spin and charge velocities. For frequencies near the spin and charge singularities approximate analytical forms are given and compared with the exact result. We find power law like singularities leading to either divergence or cusps, depending on the values of the Luttinger parameters and compute the corresponding exponents. Exact integral expressions and numerical results are given for the finite temperature case as well. We show in particular how the temperature rounds the singularities in the correlation function.
dc.description8 pages, 3 figures. Minor changes, updated references
dc.identifierhttps://arxiv.org/abs/cond-mat/0702274
dc.identifierhttp://arxiv.org/abs/cond-mat/0702274
dc.identifierPhys. Rev. B 75, 205116 (2007)
dc.identifierdoi:10.1103/PhysRevB.75.205116
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/130385
dc.subjectStrongly Correlated Electrons
dc.subjectMesoscale and Nanoscale Physics
dc.titleFourier transform of the $2k_F$ Luttinger liquid density correlation function with different spin and charge velocities
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