3,391 research outputs found
The Scattering of Strings in a Black-Hole Background
In this paper, correlation functions of tachyons in the two-dimensional
black-hole are studied. The results are shown to be consistent with the
prediction of the deformed matrix model.Comment: 10 pages, Latex, CERN-TH.7240/9
Black Hole Uncertainties
In this work the quantum theory of two dimensional dilaton black holes is
studied using the Wheeler De Witt equation. The solutions correspond to wave
functions of the black hole. It is found that for an observer inside the
horizon, there are uncertainty relations for the black hole mass and a
parameter in the metric determining the Hawking flux. Only for a particular
value of this parameter, can both be known with arbitrary accuracy. In the
generic case there is instead a relation which is very similar to the so called
string uncertainty relation.Comment: 22 pages, Changes: Additions to acknowledgements and reference
The Deformed Matrix Model at Finite Radius and a New Duality Symmetry
The deformed matrix model is studied at finite radius and
non-zero cosmological constant. Calculational techniques are presented and
illustrated in some examples. Furthermore, a new kind of
duality is discovered which mixes different genus.Comment: 11 pages, CERN-TH.7021/9
Two-Dimensional String Theory, Topological Field Theories and the Deformed Matrix Model
In this paper the string theory is studied from the point of view of
topological field theories. Calculations are done for arbitrary genus. A change
in the prescription is proposed, which reproduces the results of the
deformed matrix model. It is proposed that the deformed matrix model is related
to a D-series Landau-Ginzburg superpotential.Comment: 20 pages, Latex CERN-TH.7155. Minor typos correcte
- …