2 papers
physics.comp-ph2022
SuperNest: accelerated nested sampling applied to astrophysics and cosmology
Aleksandr Petrosyan, William James Handley
We present a method for improving the performance of nested sampling as well as its accuracy. Building on previous work by Chen et al., we show that posterior repartitioning may be…
cond-mat.stat-mech2021
Relativistic Langevin Equation derived from a particle-bath Lagrangian
Aleksandr Petrosyan, Alessio Zaccone
We show how a relativistic Langevin equation can be derived from a Lorentz-covariant version of the Caldeira-Leggett particle-bath Lagrangian. In one of its limits, we identify the…