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cond-mat.stat-mech2026
Diffusive-to-Ballistic transition in a Persistent Random Walk
Amit Pradhan, Reshmi Roy, Purusattam Ray
We study persistent random walk with time dependent velocity reversal probabilities and identify a criterion for a non-equilibrium dynamical transition. As a representative example…
cond-mat.stat-mech2025
Effect of presence of rigid impurities in a system of annihilating domain walls with dynamic bias
Reshmi Roy, Parongama Sen
The dynamics of interacting domain walls, regarded as a system of particles which are biased to move towards their nearest neighbours and annihilate when they meet, have been studi…
cond-mat.stat-mech2024
Queues with resetting: a perspective
Reshmi Roy, Arup Biswas, Arnab Pal
Performance modeling is a key issue in queuing theory and operation research. It is well-known that the length of a queue that awaits service or the time spent by a job in a queue…