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arXiv · hep-th/9210055

Time-dependent perturbations in two-dimensional String Black Holes

G. A. Diamandis·B. C. Georgalas·X. Maintas·N. E. Mavromatos
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Abstract

We discuss time-dependent perturbations (induced by matter fields) of a black-hole background in tree-level two-dimensional string theory. We analyse the linearized case and show the possibility of having black-hole solutions with time-dependent horizons. The latter exist only in the presence of time-dependent `tachyon' matter fields, which constitute the only propagating degrees of freedom in two-dimensional string theory. For real tachyon field configurations it is not possible to obtain solutions with horizons shrinking to a point. On the other hand, such a possibility seems to be realized in the case of string black-hole models formulated on higher world-sheet genera. We connect this latter result with black hole evaporation/decay at a quantum level.}

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G. A. Diamandis, B. C. Georgalas, X. Maintas, N. E. Mavromatos. 1992-10-09. Time-dependent perturbations in two-dimensional String Black Holes. https://doi.org/10.1016/0370-2693(92)91071-g

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