Finite temperature corrections in 2d integrable models

We study the finite size corrections for the magnetization and the internal energy of the 2d Ising model in a magnetic field by using transfer matrix techniques. We compare these corrections with the functional form recently proposed by Delfino and LeClair-Mussardo for the finite temperature behavio...

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Hauptverfasser: Caselle, M. (VerfasserIn) , Hasenbusch, Martin (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 29 June 2002
In: Nuclear physics. B, Particle physics
Year: 2002, Jahrgang: 639, Heft: 3, Pages: 549-561
ISSN:1873-1562
DOI:10.1016/S0550-3213(02)00475-3
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/S0550-3213(02)00475-3
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0550321302004753
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Verfasserangaben:M. Caselle, M. Hasenbusch
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Zusammenfassung:We study the finite size corrections for the magnetization and the internal energy of the 2d Ising model in a magnetic field by using transfer matrix techniques. We compare these corrections with the functional form recently proposed by Delfino and LeClair-Mussardo for the finite temperature behaviour of one-point functions in integrable 2d quantum field theories. We find a perfect agreement between theoretical expectations and numerical results. Assuming the proposed functional form as an input in our analysis we obtain a relevant improvement in the precision of the continuum limit estimates of both quantities.
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Beschreibung:Online Resource
ISSN:1873-1562
DOI:10.1016/S0550-3213(02)00475-3