3 papers
cond-mat.stat-mech2026
An exactly solvable macroscopic fluctuation theory of single-file diffusion
Sandeep Jangid, Soumyabrata Saha, Kapil Sharma +4
Single-file diffusion is a ubiquitous phenomenon in low-dimensional systems, arising in transport inside narrow channels. Its natural continuum model is a one-dimensional gas of ex…
cond-mat.stat-mech2026
Effect of slow bonds on current fluctuations in the symmetric simple exclusion process
Soumyabrata Saha, Sandeep Jangid, Kapil Sharma +1
The symmetric simple exclusion process (SSEP) is a paradigmatic model of classical non-equilibrium dynamics. Exact results for large deviations of particle current in the SSEP have…
cond-mat.stat-mech2026
Universal tracer statistics in single-file transport
Soumyabrata Saha, Jitendra Kethepalli, Benjamin Guiselin +2
We uncover an emergent universality in the large-scale, long-time statistics of a one-dimensional hard-rod gas evolving under two fundamentally different classes of microscopic dyn…