359 citations · 1.5k across the 43 of their papers we have counts for
31 papers · 1 filter
Entropy production of resetting processes
Francesco Mori, Kristian Stølevik Olsen, Supriya Krishnamurthy
Stochastic systems that undergo random restarts to their initial state have been widely investigated in recent years, both theoretically and in experiments. Oftentimes, however, re…
Non-monotonic skewness of currents in non-equilibrium steady states
Sreekanth K Manikandan, Biswajit Das, Raunak Dey +3
Measurements of any property of a microscopic system are bound to show significant deviations from the average, due to thermal fluctuations. For time-integrated currents such as he…
Estimating time-dependent entropy production from non-equilibrium trajectories
Shun Otsubo, Sreekanth K Manikandan, Takahiro Sagawa +1
The rate of entropy production provides a useful quantitative measure of a non-equilibrium system and estimating it directly from time-series data from experiments is highly desira…
Eikonal solutions for moment hierarchies of Chemical Reaction Networks in the limits of large particle number
Eric Smith, Supriya Krishnamurthy
Trajectory-based methods are well-developed to approximate steady-state probability distributions for stochastic processes in large-system limits. The trajectories are solutions to…
Inferring entropy production from short experiments
Sreekanth K Manikandan, Deepak Gupta, Supriya Krishnamurthy
We provide a strategy for an exact inference of the average as well as the fluctuations of the entropy production in non-equilibrium systems in the steady state, from the measureme…
Efficiency fluctuations in microscopic machines
Sreekanth K Manikandan, Lennart Dabelow, Ralf Eichhorn +1
Nanoscale machines are strongly influenced by thermal fluctuations, contrary to their macroscopic counterparts. As a consequence, even the efficiency of such microscopic machines b…
Path-reversal, Doi-Peliti generating functionals, and dualities between dynamics and inference for stochastic processes
Eric Smith, Supriya Krishnamurthy
Fluctuation theorems may be partitioned into those that apply the probability measure under the original stochastic process to reversed paths, and those that construct a new, adjoi…
Exact results for the finite time thermodynamic uncertainty relation
Sreekanth K Manikandan, Supriya Krishnamurthy
We obtain exact results for the recently discovered finite-time thermodynamic uncertainty relation in a stochastically driven system with non-Gaussian work statistics, both in the…
Asymptotics of work distributions in a stochastically driven system
Sreekanth K Manikandan, Supriya Krishnamurthy
We determine the asymptotic forms of work distributions at arbitrary times , in a class of driven stochastic systems using a theory developed by Engel and Nickelsen (EN theory)…
Solving Moment Hierarchies for Chemical Reaction Networks
Supriya Krishnamurthy, Eric Smith
The study of Chemical Reaction Networks (CRN's) is a very active field. Earlier well-known results \cite{Feinberg:def_01:87, Anderson:product_dist:10} identify a topological quanti…
An alternate view of complexity in k-SAT problems
Supriya Krishnamurthy, Sumedha
The satisfiability threshold for constraint satisfaction problems is that value of the ratio of constraints (or clauses) to variables, above which the probability that a random ins…
Balanced K-SAT and Biased random K-SAT on trees
Sumedha, Supriya Krishnamurthy, Sharmistha Sahoo
We study and solve some variations of the random K-satisfiability problem - balanced K-SAT and biased random K-SAT - on a regular tree, using techniques we have developed earlier(a…
Clustering of solutions in hard satisfiability problems
John Ardelius, Erik Aurell, Supriya Krishnamurthy
We study the structure of the solution space and behavior of local search methods on random 3-SAT problems close to the SAT/UNSAT transition. Using the overlap measure of similarit…
Persistence properties of a system of coagulating and annihilating random walkers
Supriya Krishnamurthy, R. Rajesh, Oleg Zaboronski
We study a d-dimensional system of diffusing particles that on contact either annihilate with probability 1/(q-1) or coagulate with probability (q-2)/(q-1). In 1-dimension, the sys…
Statistical theory of the continuous double auction
Eric Smith, J. Doyne Farmer, Laszlo Gillemot +1
Most modern financial markets use a continuous double auction mechanism to store and match orders and facilitate trading. In this paper we develop a microscopic dynamical statistic…
Slow relaxation due to optimization and restructuring: Solution on a hierarchical lattice
Janos Torok, Supriya Krishnamurthy, Janos Kertesz +1
Motivated by the large strain shear of loose granular materials we introduced a model which consists of consecutive optimization and restructuring steps leading to a self organizat…
Shearing of loose granular materials: A statistical mesoscopic model
Janos Torok, Supriya Krishnamurthy, Janos Kertesz +1
A two-dimensional lattice model for the formation and evolution of shear bands in granular media is proposed. Each lattice site is assigned a random variable which reflects the loc…
Kang-Redner Anomaly in Cluster-Cluster Aggregation
Supriya Krishnamurthy, R. Rajesh, Oleg Zaboronski
The large time, small mass, asymptotic behavior of the average mass distribution $\pb$ is studied in a -dimensional system of diffusing aggregating particles for $1\leq d \leq 2…
Effect of spatial bias on the nonequilibrium phase transition in a system of coagulating and fragmenting particles
R. Rajesh, Supriya Krishnamurthy
We examine the effect of spatial bias on a nonequilibrium system in which masses on a lattice evolve through the elementary moves of diffusion, coagulation and fragmentation. When…
Coarsening and Slow-Dynamics in Granular Compaction
A. Baldassarri, S. Krishnamurthy, V. Loreto +1
We address the problem of the microscopic reorganization of a granular medium under a compaction process in the framework of Tetris-like models. We point out the existence of regio…
Self-Quenched Dynamics
Janos Torok, Supriya Krishnamurthy, Janos Kertesz +1
We introduce a model for the slow relaxation of an energy landscape caused by its local interaction with a random walker whose motion is dictated by the landscape itself. By choosi…
Self-organization, Localization of Shear Bands and Aging in Loose Granular Materials
Janos Torok, Supriya Krishnamurthy, Janos Kertesz +1
We introduce a mesoscopic model for the formation and evolution of shear bands in loose granular media. Numerical simulations reveal that the system undergoes a non-trivial self-or…
Phase Transition in the Takayasu Model with Desorption
Satya N. Majumdar, Supriya Krishnamurthy, Mustansir Barma
We study a lattice model where particles carrying different masses diffuse, coalesce upon contact, and also unit masses adsorb to a site with rate or desorb from a site with no…
Nonequilibrium Phase Transition in a Model of Diffusion, Aggregation and Fragmentation
Satya N. Majumdar, Supriya Krishnamurthy, Mustansir Barma
We study the nonequilibrium phase transition in a model of aggregation of masses allowing for diffusion, aggregation on contact and fragmentation. The model undergoes a dynamical p…