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Dynamical tachyons on fuzzy spheres
David Berenstein, Diego Trancanelli
We study the spectrum of off-diagonal fluctuations between displaced fuzzy spheres in the BMN plane wave matrix model. The displacement is along the plane of the fuzzy spheres. We…
Lessons in quantum gravity from quantum field theory
David Berenstein
This paper reviews advances in the understanding of quantum gravity based on field theory calculations in the AdS/CFT correspondence.
Non-adiabaticity and improved back-reaction
Curtis T. Asplund, David Berenstein
We treat quantum back-reaction in time dependent processes for quantum field theory in various simplified models. The first example is a harmonic oscillator whose frequency depends…
The shape of emergent quantum geometry from an N=4 SYM minisuperspace approximation
David Berenstein, Yuichiro Nakada
We study numerically various wave functions in a gauged matrix quantum mechanics of six commuting hermitian matrices. Our simulations span ranges of up to 10000. Th…
A viable axion from gauged flavor symmetries
David Berenstein, Erik Perkins
We consider a string inspired non-supersymmetric extension of the standard model with gauged anomalous U(1) flavor symmetries. Consistency requires the Green-Schwarz mechanism to c…