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Journal articles
Response functions in multicomponent Luttinger liquids
Abstract : We derive an analytic expression for the zero temperature Fourier transform of the density-density correlation function of a multicomponent Luttinger liquid with different velocities. By employing Schwinger identity and a generalized Feynman identity exact integral expressions are derived, and approximate analytical forms are given for frequencies close to each component singularity. We find power-like singularities and compute the corresponding exponents. Numerical results are shown for the case of three components.
Keywords :
Luttinger liquids (theory)
bosonization
https://hal-ens-lyon.archives-ouvertes.fr/ensl-00772338
Contributor : Edmond Orignac <>
Submitted on : Thursday, January 10, 2013 - 1:27:18 PM
Last modification on : Thursday, November 5, 2020 - 2:54:06 PM
Contributor : Edmond Orignac <>
Submitted on : Thursday, January 10, 2013 - 1:27:18 PM
Last modification on : Thursday, November 5, 2020 - 2:54:06 PM
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