Imperial College London
Alternate

ProfessorKelloggStelle

Faculty of Natural Sciences, Department of Physics

Professor of Physics
 
 
 
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Contact

 

+44 (0)20 7594 7826k.stelle

 
 
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Assistant

 

Mrs Graziela De Nadai-Sowrey +44 (0)20 7594 7843

 
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Location

 

519Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Crampton:2014:10.1007/JHEP12(2014)035,
author = {Crampton, B and Pope, CN and Stelle, KS},
doi = {10.1007/JHEP12(2014)035},
journal = {Journal of High Energy Physics},
pages = {1--26},
title = {Braneworld localisation in hyperbolic spacetime},
url = {http://dx.doi.org/10.1007/JHEP12(2014)035},
year = {2014}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We present a construction employing a type IIA supergravity and 3-form fluxbackground together with an NS5-brane that localises massless gravity near the5-brane worldvolume. The nonsingular underlying type IIA solution is a lift to10D of the vacuum solution of the 6D Salam-Sezgin model and has a hyperbolic${\cal H}^{(2,2)}\times S^1$ structure in the lifting dimensions. A fullyback-reacted solution including the NS5-brane is constructed by recognising the10D Salam-Sezgin vacuum solution as a "brane resolved through transgression."The background hyperbolic structure plays a key r\^ole in generating a mass gapin the spectrum of the transverse-space wave operator, which gives rise to thelocalisation of gravity on the 6D NS5-brane worldvolume, or, equally, in afurther compactification to 4D. Also key to the successful localisation ofgravity is the specific form of the corresponding transverse wavefunctionSchr\"odinger problem, which asymptotically involves a $V=-1/(4\rho^2)$potential, where $\rho$ is the transverse-space radius, and for which theNS5-brane source gives rise to a specific choice of self-adjoint extension forthe transverse wave operator. The corresponding boundary condition as$\rho\to0$ ensures the masslessness of gravity in the effective braneworldtheory. Above the mass gap, there is a continuum of massive states which giverise to small corrections to Newton's law.
AU  - Crampton,B
AU  - Pope,CN
AU  - Stelle,KS
DO  - 10.1007/JHEP12(2014)035
EP  - 26
PY  - 2014///
SN  - 1126-6708
SP  - 1
TI  - Braneworld localisation in hyperbolic spacetime
T2  - Journal of High Energy Physics
UR  - http://dx.doi.org/10.1007/JHEP12(2014)035
UR  - http://arxiv.org/abs/1408.7072v1
UR  - http://hdl.handle.net/10044/1/19985
ER  -
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