SCOAP3 Repository 10 records found  Search took 0.02 seconds. 
1. Tower of subleading dual BMS charges / Godazgar, Hadi ; Godazgar, Mahdi ; Pope, C.
We supplement the recently found dual gravitational charges with dual charges for the whole BMS symmetry algebra. [...]
Published in JHEP 1903 (2019) 057 10.1007/JHEP03(2019)057 arXiv:1812.06935
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2. Subleading BMS charges and fake news near null infinity / Godazgar, Hadi ; Godazgar, Mahdi ; Pope, C.
In this paper we establish a relation between the non-linearly conserved New-man-Penrose charges and certain subleading terms in a large- r expansion of the BMS charges in an asymptotically-flat spacetime. [...]
Published in JHEP 1901 (2019) 143 10.1007/JHEP01(2019)143 arXiv:1809.09076
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3. New dual gravitational charges / Godazgar, Hadi ; Godazgar, Mahdi ; Pope, C. N.
We show that there are a further infinite number of, previously unknown, supertranslation charges. [...]
Published in Physical Review D 99 (2019) 10.1103/PhysRevD.99.024013 arXiv:1812.01641
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4. Conformal anomaly for non-conformal scalar fields / Casarin, Lorenzo ; Godazgar, Hadi ; Nicolai, Hermann
We give a general definition of the conformal anomaly for theories that are not classically Weyl invariant and show that this definition yields a quantity that is both finite and local. [...]
Published in Physics letters B 787 (2018) 94-99 10.1016/j.physletb.2018.10.034
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5. Conformal anomalies and the Einstein field equations / Godazgar, Hadi ; Meissner, Krzysztof ; Nicolai, Hermann
We compute corrections to the Einstein field equations which are induced by the anomalous effective actions associated to the type A conformal anomaly, both for the (non-local) Riegert action, as well as for the local action with dilaton. [...]
Published in JHEP 1704 (2017) 165 10.1007/JHEP04(2017)165 arXiv:1612.01296
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6. Consistent 4-form fluxes for maximal supergravity / Godazgar, Hadi ; Godazgar, Mahdi ; Krüger, Olaf ; Nicolai, Hermann
We derive new ansätze for the 4-form field strength of D = 11 supergravity corresponding to uplifts of four-dimensional maximal gauged supergravity. [...]
Published in JHEP 1510 (2015) 169 10.1007/JHEP10(2015)169 arXiv:1507.07684
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7. An SO(3)×SO(3) invariant solution of D = 11 supergravity / Godazgar, Hadi ; Godazgar, Mahdi ; Krüger, Olaf ; Nicolai, Hermann ; et al
We construct a new SO(3)×SO(3) invariant non-supersymmetric solution of the bosonic field equations of D = 11 supergravity from the corresponding stationary point of maximal gauged N = 8 supergravity by making use of the non-linear uplift formulae for the metric and the 3-form potential. [...]
Published in JHEP 1501 (2015) 056 10.1007/JHEP01(2015)056 arXiv:1410.5090
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8. Supersymmetric E 7(7) exceptional field theory / Hadi Godazgar ; Mahdi Godazgar ; Olaf Hohm ; Hermann Nicolai ; et al
We give the supersymmetric extension of exceptional field theory for E 7(7) , which is based on a (4 + 56)-dimensional generalized spacetime subject to a covariant constraint. [...]
Published in JHEP 1409 (2014) 044 10.1007/JHEP09(2014)044 arXiv:1406.3235
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9. Einstein-Cartan calculus for exceptional geometry / Hadi Godazgar ; Mahdi Godazgar ; Hermann Nicolai
In this paper we establish and clarify the link between the recently found E 7(7) generalised geometric structures, which are based on the SU(8) invariant reformulation of D = 11 supergravity proposed long ago, and newer results obtained in the framework of recent approaches to generalised geometry, where E 7(7) duality is built in and manifest from the outset. [...]
Published in JHEP 1406 (2014) 021 10.1007/JHEP06(2014)021 arXiv:1401.5984
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10. Generalised geometry from the ground up / Hadi Godazgar ; Mahdi Godazgar ; Hermann Nicolai
Extending previous work on generalised geometry, we explicitly construct an E 7(7) -valued vielbein in eleven dimensions that encompasses the would be scalar bosonic degrees of freedom after reduction to four dimensions of D = 11 supergravity, by identifying new “generalised vielbeine” in eleven dimensions associated with the dual 6-form potential and the dual graviton. [...]
Published in JHEP 1402 (2014) 075 10.1007/JHEP02(2014)075 arXiv:1307.8295
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