S Peysson and K Schoutens 2002 J. Phys. A: Math. Gen. 35 6471 doi:10.1088/0305-4470/35/30/318
A form-factor approach to finite-temperature correlation functions in c = 1 CFT
S Peysson1 and K Schoutens1,2
Show affiliationsThe excitation spectrum of specific conformal field theories (CFT) with central charge c = 1 can be described in terms of quasi-particles with charges Q = −p, +1 and fractional statistics properties. Using the language of Jack polynomials, we compute form factors of the charge density operator in these CFTs. We study a form-factor expansion for the finite-temperature density–density correlation function, and find that it shows a quick convergence to the exact result. The low-temperature behaviour is recovered from a form factor with p + 1 particles, while the high-temperature limit is recovered from states containing no more than three particles.
- PACS
- MSC
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81T40 Two-dimensional field theories, conformal field theories, etc.
- Subjects
- Dates
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Issue 30 (2 August 2002)
Received 9 May 2002
Published 19 July 2002
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A form-factor approach to finite-temperature correlation functions in c = 1 CFT
S Peysson and K Schoutens 2002 J. Phys. A: Math. Gen. 35 6471
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