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- University College LondonGB139 papers
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21 papers · 1 filter
Thermodynamics of dyonic black holes in non-linear electrodynamics
Lewis Croney, Ruth Gregory, Carlos J. Ramírez-Valdez
We investigate dyonic black holes in a weak field expansion of non-linear electrodynamics. The breadth of parameter space permits a rich thermodynamic structure, additional turning…
Crystal Melting, BPS Quivers and Plethystics
Jiakang Bao, Yang-Hui He, Ali Zahabi
We study the refined and unrefined crystal/BPS partition functions of D6-D2-D0 brane bound states for all toric Calabi-Yau threefolds without compact 4-cycles and some non-toric ex…
On Acceleration in Three Dimensions
Gabriel Arenas-Henriquez, Ruth Gregory, Andrew Scoins
We go "back to basics", studying accelerating systems in AdS gravity \textit{ab initio}. We find three classes of geometry, which we interpret by studying holographically the…
Euclidean D-branes in Type IIB string theory on Calabi-Yau threefolds
Sergei Alexandrov, Ashoke Sen, Bogdan Stefański
We compute the contribution of Euclidean D-branes in type IIB string theory on Calabi-Yau threefolds to the metric on the hypermultiplet moduli space in the large volume, weak coup…
Noncommutative spectral geometry, Bogoliubov transformations and neutrino oscillations
Maria Vittoria Gargiulo, Mairi Sakellariadou, Giuseppe Vitiello
In this report we show that neutrino mixing is intrinsically contained in Connes' noncommutative spectral geometry construction, thanks to the introduction of the doubling of algeb…
Spectral action with zeta function regularization
Maxim A. Kurkov, Fedele Lizzi, Mairi Sakellariadou +1
In this paper we propose a novel definition of the bosonic spectral action using zeta function regularization, in order to address the issues of renormalizability and spectral dime…