Large Gauge Transformations in Double Field Theory
Jul, 201239 pages
Published in:
- JHEP 02 (2013) 075
e-Print:
- 1207.4198 [hep-th]
Report number:
- MIT-CTP-4385,
- LMU-ASC~48-12
View in:
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Abstract: (Springer)
Finite gauge transformations in double field theory can be defined by the exponential of generalized Lie derivatives. We interpret these transformations as ‘generalized coordinate transformations’ in the doubled space by proposing and testing a formula that writes large transformations in terms of derivatives of the coordinate maps. Successive generalized coordinate transformations give a generalized coordinate transformation that differs from the direct composition of the original two. Instead, it is constructed using the Courant bracket. These transformations form a group when acting on fields but, intriguingly, do not associate when acting on coordinates.Note:
- 40 pages, v2: discussion of dilaton added, to appear in JHEP
- transformation: gauge
- derivative: Lie
- double field theory
- p Xi
- diffeomorphism
- Xi/c
- commutation relations
References(58)
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