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66 papers · 1 filter
Chaos Rules out Integrability of Strings in AdS_5 x T^{1,1}
Pallab Basu, Leopoldo A. Pando Zayas
We show that certain classical string configurations in AdS_5 x T^{1,1} are chaotic. This answers the question of integrability of string on such backgrounds in the negative. We co…
Non-Stationary Dark Energy Around a Black Hole
Ratindranath Akhoury, David Garfinkle, Ryo Saotome +1
Numerical simulations of the accretion of test scalar fields with non-standard kinetic terms (of the k-essence type) onto a Schwarzschild black hole are performed. We find a full d…
Heating up the Baryonic Branch with U-duality: a unified picture of conifold black holes
Elena Caceres, Carlos Nunez, Leopoldo A. Pando Zayas
We study different aspects of a U-duality recently presented by Maldacena and Martelli and apply it to non-extremal backgrounds. In particular, starting from new non-extremal wrapp…
The Spectrum of Excitations of Holographic Wilson Loops
Alberto Faraggi, Leopoldo A. Pando Zayas
In the holographic framework, a half BPS Wilson loop in supersymmetric Yang-Mills in the fundamental, symmetric or antisymmetric representation of SU(N), is best descr…
Quantum Aspects of Massive Gravity
Minjoon Park
We consider the effect of quantum interactions on Pauli-Fierz massive gravity. With generic graviton cubic interactions, we observe that the 1-loop counterterms do not conform to t…
E7(7) constraints on counterterms in N=8 supergravity
Niklas Beisert, Henriette Elvang, Daniel Z. Freedman +3
We prove by explicit computation that 6-point matrix elements of D^4R^4 and D^6R^4 in N=8 supergravity have non-vanishing single-soft scalar limits, and therefore these operators v…