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

Silvio Rabello·Qimiao Si
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Abstract

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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Silvio Rabello, Qimiao Si. 2003-02-07. Spectral functions in a magnetic field as a probe of spin-charge separation in a Luttinger liquid. https://doi.org/10.1209/epl%2Fi2002-00300-9

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