91 citations · 114 across the 4 of their papers we have counts for
6 papers
A Variational Principle for the Axisymmetric Stability of Rotating Relativistic Stars
Kartik Prabhu, Joshua S. Schiffrin, Robert M. Wald
It is well known that all rotating perfect fluid stars in general relativity are unstable to certain non-axisymmetric perturbations via the Chandrasekhar-Friedman-Schutz (CFS) inst…
Stationarity of Extremum Entropy Fluid Bodies in General Relativity
Joshua S. Schiffrin
We consider perfect fluid bodies ("stars") in general relativity that are axisymmetric, asymptotically flat, and that admit a maximal hypersurface. We show that configurations that…
Worldline approach to semi-classical conformal blocks
Eliot Hijano, Per Kraus, River Snively
We extend recent results on semi-classical conformal blocks in 2d CFT and their relation to 3D gravity via the AdS/CFT correspondence. We consider four-point functions with two hea…
Turning Point Instabilities for Relativistic Stars and Black Holes
Joshua S. Schiffrin, Robert M. Wald
In the light of recent results relating dynamic and thermodynamic stability of relativistic stars and black holes, we re-examine the relationship between "turning points"---i.e., e…
Dynamic and Thermodynamic Stability of Relativistic, Perfect Fluid Stars
Stephen R. Green, Joshua S. Schiffrin, Robert M. Wald
We consider perfect fluid bodies (stars) in general relativity, characterized by particle number density and entropy per particle. A star is said to be in dynamic equilibrium if it…
Measure and Probability in Cosmology
Joshua S. Schiffrin, Robert M. Wald
General relativity has a Hamiltonian formulation, which formally provides a canonical (Liouville) measure on the space of solutions. In ordinary statistical physics, the Liouville…