期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 10, 页码 -出版社
SPRINGER
DOI: 10.1088/1126-6708/2008/10/045
关键词
AdS-CFT Correspondence; Models of Quantum Gravity
资金
- NSF [PHY-0245068, PHY-0758032]
- NSF CAREER [PHY-0645435]
- Scuola Normale Superiore
- Galileo Galilei Institute in Florence
- Centro de Estudios Cientificos CECS
- CCPP at New York University
- Division Of Physics
- Direct For Mathematical & Physical Scien [0758032, GRANTS:13857203] Funding Source: National Science Foundation
A recent paper [1] claims that topologically massive gravity contains only chiral boundary excitations at a particular value of the Chern-Simons coupling. On the other hand, propagating bulk degrees of freedom with negative norm were found even at the chiral point in [2]. The two references use very different methods, making comparison of their respective claims difficult. In this letter, we use the method of [1] to construct a tower of physical propagating bulk states satisfying standard AdS boundary conditions. Our states have finite norm, with sign opposite to that of right-moving boundary excitations. Our results thus agree with [2] and disagree with [1].
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