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Dynamics of quantum spin chains and multi-fermion excitation continua

O. Derzhko·T. Krokhmalskii·J. Stolze·G. Müller
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Abstract

We use the Jordan-Wigner representation to study dynamic quantities for the spin-1/2 XX chain in a transverse magnetic field. We discuss in some detail the properties of the four-fermion excitation continuum which is probed by the dynamic trimer structure factor.

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O. Derzhko, T. Krokhmalskii, J. Stolze, G. Müller. 2005-08-10. Dynamics of quantum spin chains and multi-fermion excitation continua. https://doi.org/10.1016/j.physb.2006.01.192

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