No chiral truncation of quantum log gravity?
In: Journal of High Energy Physics, Jg. 2010 (2010-03-01), Heft 3, S. 1-21
Online
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Zugriff:
At the classical level, chiral gravity may be constructed as a consistent truncation of a larger theory called log gravity by requiring that left-moving charges vanish. In turn, log gravity is the limit of topologically massive gravity (TMG) at a special value of the coupling (the chiral point). We study the situation at the level of linearized quantum fields, focussing on a unitary quantization. While the TMG Hilbert space is continuous at the chiral point, the left-moving Virasoro generators become ill-defined and cannot be used to define a chiral truncation. In a sense, the left-moving asymptotic symmetries are spontaneously broken at the chiral point. In contrast, in a non-unitary quantization of TMG, both the Hilbert space and charges are continuous at the chiral point and define a unitary theory of chiral gravity at the linearized level. [ABSTRACT FROM AUTHOR]
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Titel: |
No chiral truncation of quantum log gravity?
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Autor/in / Beteiligte Person: | Andrade, Tomás ; Marolf, Donald |
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Zeitschrift: | Journal of High Energy Physics, Jg. 2010 (2010-03-01), Heft 3, S. 1-21 |
Veröffentlichung: | 2010 |
Medientyp: | academicJournal |
ISSN: | 1126-6708 (print) |
DOI: | 10.1007/JHEP03(2010)029 |
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