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31 papers · 2 filters
A bound on Planck-scale modifications of the energy-momentum composition rule from atomic interferometry
M. Arzano, J. Kowalski-Glikman, A. Walkus
High sensitivity measurements in atomic spectroscopy were recently used in Amelino-Camelia et. al. to constraint the form of possible modifications of the energy-momentum dispersio…
Self-dual Einstein Spaces, Heavenly Metrics and Twistors
Sergei Alexandrov, Boris Pioline, Stefan Vandoren
Four-dimensional quaternion-Kahler metrics, or equivalently self-dual Einstein spaces M, are known to be encoded locally into one real function h subject to Przanowski's Heavenly e…
On Yangian and Long Representations of the Centrally Extended su(2|2) Superalgebra
Gleb Arutyunov, Marius de Leeuw, Alessandro Torrielli
The centrally extended su(2|2) superalgebra is an asymptotic symmetry of the light-cone string sigma model on AdS5 x S5. We consider an evaluation representation of the conventiona…
Near-Horizon Analysis of
Nabamita Banerjee, Suvankar Dutta
It is now well understood that the coefficient of shear viscosity of boundary fluid can be obtained from the horizon values of the effective coupling of transverse graviton in bulk…
Exploring the mirror TBA
Gleb Arutyunov, Sergey Frolov, Ryo Suzuki
We apply the contour deformation trick to the Thermodynamic Bethe Ansatz equations for the AdS_5 \times S^5 mirror model, and obtain the integral equations determining the energy o…
Decoherence in an Interacting Quantum Field Theory: The Vacuum Case
Jurjen F. Koksma, Tomislav Prokopec, Michael G. Schmidt
We apply the decoherence formalism to an interacting scalar field theory. In the spirit of the decoherence literature, we consider a "system field" and an "environment field" that…