244 citations · 890 across the 16 of their papers we have counts for
4 papers · 1 filter
Constructing Auxiliary Dynamics for Nonequilibrium Stationary States by Variance Minimization
Ushnish Ray, Garnet Kin-Lic Chan
We present a strategy to construct guiding distribution functions (GDFs) based on variance minimization. Auxiliary dynamics via GDFs mitigates the exponential growth of variance as…
Dynamical phase behavior of the single- and multi-lane asymmetric simple exclusion process via matrix product states
Phillip Helms, Ushnish Ray, Garnet Kin-Lic Chan
We analyze the dynamical phases of the current-biased 1D and multi-lane open asymmetric simple exclusion processes (ASEP), using matrix product states and the density matrix renorm…
Exact fluctuations of nonequilibrium steady states from approximate auxiliary dynamics
Ushnish Ray, Garnet Kin-Lic Chan, David T. Limmer
We describe a framework to significantly reduce the computational effort to evaluate large deviation functions of time integrated observables within nonequilibrium steady states. W…
Importance sampling large deviations in nonequilibrium steady states. I
Ushnish Ray, Garnet Kin-Lic Chan, David T. Limmer
Large deviation functions contain information on the stability and response of systems driven into nonequilibrium steady states, and in such a way are similar to free energies for…