H-Branes and Chiral Strings

Ian I. Kogan; Nuno B.B. Reis

H-Branes and Chiral Strings

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arxiv hep-th/0107163 v1 pith:CW2A5USJ submitted 2001-07-19 hep-th gr-qc

Ian I. Kogan , Nuno B.B. Reis This is my paper · ORCID

classification hep-thgr-qc

keywords stringsboundarychiralh-branessinglespacestatesaction

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We add a simple boundary term to the Polyakov action and construct a new class of D-branes with a single null direction. On the string world-sheet the system is described by a single quantized left-mode sector of a conformal field theory. By a Wick rotation of spacetime, we map open strings attached to these branes into chiral closed strings. We suggest that these so-called H-branes describe quantum horizons - black hole, cosmological (de-Sitter), etc. We show how one can get a space/phase space transmutation near the horizon and discuss the new features of boundary states which become squeezed states.

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Traversable wormhole for string, but not for particle
hep-th 2024-12 reject novelty 6.0 of 10

A two-parameter NS-NS wormhole background admits chiral string solutions that cross the singular boundary surfaces that particles and ordinary strings cannot.

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