Measuring the $W$-hair of String Black Holes

Details Measuring the $W$-hair of String Black Holes Measuring the $W$-hair of String Black Holes

1992-03-05

arxiv.org/abs/hep-th/9203012v1

Phys.Lett.B284:43-49,1992

Physics

High Energy Physics

High Energy Physics - Theory

23 pages

Scientific paper

10.1016/0370-2693(92)91922-V

We have argued previously that the infinitely many gauge symmetries of string theory provide an infinite set of conserved (gauge) quantum numbers ($W$-hair) which characterise black hole states and maintain quantum coherence. Here we study ways of measuring the $W$-hair of spherically-symmetric four-dimensional objects with event horizons, treated as effectively two-dimensional string black holes. Measurements can be done either through the s-wave scattering of light particles off the string black-hole background, or through interference experiments of Aharonov-Bohm type. In the first type of measurement, selection rules

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