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arXiv · 1511.01825

Information Retention by Stringy Black Holes

John Ellis·Nick E. Mavromatos·D. V. Nanopoulos
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Abstract

Building upon our previous work on two-dimensional stringy black holes and its extension to spherically-symmetric four-dimensional stringy black holes, we show how the latter retain information. A key rôle is played by an infinite-dimensional $W_\infty$ symmetry that preserves the area of an isolated black-hole horizon and hence its entropy. The exactly-marginal conformal world-sheet operator representing a massless stringy particle interacting with the black hole necessarily includes a contribution from $W_\infty$ generators in its vertex function. This admixture manifests the transfer of information between the string black hole and external particles. We discuss different manifestations of $W_\infty$ symmetry in black-hole physics and the connections between them.

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John Ellis, Nick E. Mavromatos, D. V. Nanopoulos. 2016-02-08. Information Retention by Stringy Black Holes. https://arxiv.org/abs/1511.01825

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