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Thermodynamics, spin-charge separation, and correlation functions of spin-1/2 fermions with repulsive interaction

Lee, Jen; Guan, Xi-Wen; Sakai, Kazumitsu; Batchelor, Murray


We investigate the low-temperature thermodynamics and correlation functions of one-dimensional spin-1/2 fermions with strong repulsion in an external magnetic field via the thermodynamic Bethe ansatz method. The exact thermodynamics of the model in a weak magnetic field is derived with the help of Wiener-Hopf techniques. It turns out that the low-energy physics can be described by spin-charge separated conformal field theories of an effective Tomonaga-Luttinger liquid and an antiferromagnetic...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
Source: Physical Review B: Condensed Matter and Materials
DOI: 10.1103/PhysRevB.85.085414


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