36 citations · 80 across the 5 of their papers we have counts for
5 papers
On minimal Type IIB solutions with commuting 7-branes
Andrea Chaney, Christoph F. Uhlemann
We construct Type IIB supergravity solutions with geometry warped over a disc with two boundary points where 5-branes emerge and punctures with 7-brane monodromy.…
Fuzzy Space-Times
A. Chaney, A. Stern
Four-dimensional manifolds with changing signature are obtained by taking the large limit of fuzzy solutions to a Lorentzian matrix model. The regions of Lorentzian sign…
Matrix Model Approach to Cosmology
A. Chaney, Lei Lu, A. Stern
We perform a systematic search for rotationally invariant cosmological solutions to matrix models, or more specifically the bosonic sector of Lorentzian IKKT-type matrix models, in…
Lorentzian Fuzzy Spheres
A. Chaney, Lei Lu, A. Stern
We show that fuzzy spheres are solutions of IKKT matrix models. The fuzzy sphere solutions serve as toy models of closed noncommutative cosmologies where big ban…
BTZ Black Hole Entropy from a Chern-Simons Matrix Model
A. Chaney, Lei Lu, A. Stern
We examine a Chern-Simons matrix model which we propose as a toy model for studying the quantum nature of black holes in 2+1 gravity. Its dynamics is described by two m…