Spectral functions in a magnetic field as a probe of spin-charge separation in a Luttinger liquid

Details Spectral functions in a magnetic field as a probe of spin-charge separation in a Luttinger liquid Spectral functions in a magnetic field as a probe of spin-charge separation in a Luttinger liquid

2000-08-03

arxiv.org/abs/cond-mat/0008065v2

Europhys.Lett.57:882-888,2002

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 3 figures; published version

Scientific paper

10.1209/epl/i2002-00300-9

We show that the single-particle spectral functions in a magnetic field can be used to probe spin-charge separation of a Luttinger liquid. Away from the Fermi momentum, the magnetic field splits both the spinon peak and holon peak; here the spin-charge separation nature is reflected in the different magnitude of the two splittings. At the Fermi momentum, the magnetic field splits the zero-field peak into {\it four} peaks. The feasibility of experimentally studying this effect is discussed.

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