3 papers
cond-mat.mtrl-sci2026
Bridging the continuum and the kinetic-Boltzmann theories of heat flow through generalized Knudsen numbers
Nikhil Malviya, Navaneetha K. Ravichandran
Heat conduction in semiconductor crystals is fundamentally governed by the linearized Peierls-Boltzmann equation (LPBE) for phonon transport, that arises out of a kinetic theory fo…
cond-mat.mtrl-sci2026
Examining the microscopic origin of a computationally inexpensive thermal-conductivity-based indicator for phonon hydrodynamics
Nikhil Malviya, Navaneetha K. Ravichandran
Hydrodynamic heat flow, where out-of-equilibrium phonons collectively drift in response to a temperature gradient, has attracted renewed interest following its experimental observa…
cond-mat.mtrl-sci2025
Efficient calculation of phonon dynamics through a low-rank solution of the Boltzmann equation
Nikhil Malviya, Navaneetha K. Ravichandran
Exotic nondiffusive heat transfer regimes such as the second sound, where heat propagates as a damped wave at speeds comparable to those of mechanical disturbances, often occur at…