Exact null octagon
نویسندگان
چکیده
منابع مشابه
Exact null tachyons from renormalization group flows
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. We construct exact two-dimensional conformal field theories, corresponding to closed string tachyon and metric prof...
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We construct exact 2d CFTs, corresponding to closed string tachyon and metric profiles invariant under shifts in a null coordinate, which can be constructed from any 2d renormalization group flow. These solutions satisfy first order equations of motion in the conjugate null coordinate. The direction along which the tachyon varies is identified precisely with the wordsheet scale, and the tachyon...
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Exact non-static spherically symmetric solutions of the Einstein equations for a null fluid source with pressure P and density ρ related by P = kρa are given. The a = 1 metrics are asymptotically flat for 1/2 < k ≤ 1 and cosmological for 0 < k < 1/2. The k = 1 metric is the known charged Vaidya solution. In general the metrics have multiple apparent horizons. In the long time limit, the asympto...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2020
ISSN: 1029-8479
DOI: 10.1007/jhep05(2020)070