Operator Approach to Boundary Liouville Theory

Dorn, Harald; Jorjadze, George

doi:10.1016/j.aop.2008.02.009

Operator Approach to Boundary Liouville Theory

Harald Dorn
(
- Humboldt U., Berlin
)
,
George Jorjadze
(
- Humboldt U., Berlin and
- Razmadze Math. Inst.
)

Jan, 2008

45 pages

Published in:

Annals Phys. 323 (2008) 2799-2839

e-Print:

0801.3206 [hep-th]

DOI:

10.1016/j.aop.2008.02.009

Report number:

HU-EP-07-65

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Abstract: (arXiv)

We propose new methods for calculation of the discrete spectrum, the reflection amplitude and the correlation functions of boundary Liouville theory on a strip with Lorentzian signature. They are based on the structure of the vertex operator

V=e^{-\phi}

in terms of the asymptotic operators. The methods first are tested for the particle dynamics in the Morse potential, where similar structures appear. Application of our methods to boundary Liouville theory reproduces the known results obtained earlier in the bootstrap approach, but there can arise a certain extension when the boundary parameters are near to critical values. Namely, in this case we have found up to four different equidistant series of discrete spectra, and the reflection amplitude is modified respectively.

Note:

45 pages, 5 figures, extented subsection 4.3.2, related minor changes in subsections 3.3 and 4.2

11.25.-w
11.10.Lm
11.25.Hf
11.10.Ef
11.25.Pm
11.10.Kk
Liouville theory
Strings and branes
2D conformal symmetry
Boundary conditions

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