5 papers
Hydrodynamics without a relaxation gap: memory effects, nonlocality, and superdiffusion
Lorenzo Gavassino, Sukanya Mitra, Rajeev Singh
By studying a simple model of relativistic particles propagating through a background medium with an energy-dependent relaxation time that is unbounded from above, we investigate h…
On the local thermodynamic relations in relativistic spin hydrodynamics
Francesco Becattini, Rajeev Singh
We demonstrate, by providing two specific examples, that the local differential thermodynamic relations used as educated guesses in relativistic hydrodynamics with spin, do not hol…
Spin hydrodynamics on a hyperbolic expanding background
Rajeev Singh, Alexander Soloviev
We study relativistic spin hydrodynamics on the hyperbolic flow background recently identified by Grozdanov. This background corresponds to an -invariant, transver…
Perfect spinfluid: A divergence-type approach
Nick Abboud, Lorenzo Gavassino, Rajeev Singh +1
We present a new formulation of non-dissipative relativistic spin hydrodynamics that incorporates spin degrees of freedom into the divergence-type theory framework. Due to the dive…
On the non-uniqueness of the energy-momentum and spin currents
Rajeev Singh
The macroscopic energy-momentum and spin densities of relativistic spin hydrodynamics are obtained from the ensemble average of their respective microscopic definitions (quantum op…