Spin-Charge Separation in Angle-Resolved Photoemission Spectra
Hidekatsu Suzuura, Naoto Nagaosa
TL;DR
This paper discusses how ARPES experiments relate to spin-charge separation in strongly correlated materials, emphasizing the importance of non-local phase strings in theoretical models to match experimental observations.
Contribution
It highlights the role of non-local phase strings in slave-particle RVB theories for explaining ARPES spectra and compares 1D and 2D cases.
Findings
Non-local phase strings are essential for reproducing experimental spectra.
The two-peak structure in SrCuO2 is explained by phase string effects.
Differences between 1D and 2D cases are analyzed.
Abstract
The implications of the angle-resolved photoemission spectroscopy (ARPES) on the issue of spin-charge separation are discussed from the viewpoint of slave-particle RVB theories. It is pointed out that the non-local phase string is essential to reproduce the two-peak structure experimentally observed in SrCuO_2. The comparison between 1D and 2D cases is also made.
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