2 papers
cond-mat.stat-mech2025
Impurity dynamics in a zero-temperature gas
Umesh Kumar, Abhishek Dhar, P. L. Krapivsky
If energy is suddenly released in a localized region of space uniformly filled with identical stationary hard spheres, the outcome is a blast with an asymptotically spherical shock…
cond-mat.stat-mech2023
Observation of multiple attractors and diffusive transport in a periodically driven Klein-Gordon chain
Umesh Kumar, Seemant Mishra, Anupam Kundu +1
We consider a Klein-Gordon chain that is periodically driven at one end and has dissipation at one or both boundaries. An interesting numerical observation in a recent study~[arXiv…