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41 papers · 1 filter
The status of cosmological natural selection
Lee Smolin
The problem of making predictions from theories that have landscapes of possible low energy parameters is reviewed. Conditions for such a theory to yield falsifiable predictions fo…
From noncommutative kappa-Minkowski to Minkowski space-time
Laurent Freidel, Jerzy Kowalski-Glikman, Sebastian Nowak
We show that free -Minkowski space field theory is equivalent to a relativistically invariant, non local, free field theory on Minkowski space-time. The field theory we obtain h…
Derivative F-Terms from Heterotic M-Theory Five-brane Instantons
Evgeny I. Buchbinder
We study non-perturbative effects due to a heterotic M-theory five-brane wrapped on Calabi-Yau threefold. We show that such instantons contribute to derivative F-terms described re…
Mach's Holographic Principle
Justin Khoury, Maulik Parikh
Mach's principle is the concept that inertial frames are determined by matter. We propose and implement a precise formulation of Mach's principle in which matter and geometry are i…
The Quantum Hall Effect in Graphene: Emergent Modular Symmetry and the Semi-circle Law
C. P. Burgess, B. P. Dolan
Low-energy transport measurements in Quantum Hall systems have been argued to be governed by emergent modular symmetries whose predictions are robust against many of the detailed m…
Holography and the scale-invariance of density fluctuations
Joao Magueijo, Lee Smolin, Carlo R. Contaldi
We study a scenario for the very early universe in which there is a fast phase transition from a non-geometric, high temperature phase to a low temperature, geometric phase describ…