7 papers
Spin relaxation of heavy quarks from momentum diffusion in the quark-gluon plasma
Ankit Kumar, Sourav Dey, Vinod Chandra +1
Heavy-quark spin dynamics in the quark-gluon plasma provides a potential probe of the interaction between heavy quarks and the medium. We develop a stochastic framework in which th…
Spin dynamics and polarization in relativistic systems: recent developments
Sourav Dey, Arpan Das, Hiranmaya Mishra +1
We review recent theoretical and experimental developments in spin dynamics and polarization phenomena in relativistic systems, with a particular focus on heavy-ion collisions. The…
Quantum spin dynamics of heavy quarks and polarization observables in relativistic heavy-ion collisions
Sunil Jaiswal, Sourav Dey, Amaresh Jaiswal
We develop a quantum spin-density-matrix framework for heavy-quark spin dynamics in relativistic heavy-ion collisions. Starting from an initial polarization induced along the magne…
Dissipative spin hydrodynamics in Bjorken flow and thermal dilepton production
Sejal Singh, Sourav Dey, Arpan Das +2
We investigate the boost-invariant expansion of a recently developed first-order spin hydrodynamic framework in which the spin chemical potential is treated as a leading-order hydr…
Rotational Brownian motion and heavy quark polarization in QCD medium
Sourav Dey, Amaresh Jaiswal
We consider the rotational Brownian motion of heavy quark in QCD medium and provide analytical results for polarization of open heavy-flavor hadrons. We calculate expressions for v…
Energy-momentum correlators of fermions at finite temperature and density
Sourav Dey, Samapan Bhadury, Wojciech Florkowski +2
Equal-time commutators of different components of the energy-momentum tensor at spatially separated points are calculated for a relativistic quantum Fermi gas at finite temperature…
Diffusion coefficient matrix for multiple conserved charges: a Kubo approach
Sourav Dey, Amaresh Jaiswal, Hiranmaya Mishra
The strongly interacting matter created in relativistic heavy-ion collisions possesses several conserved quantum numbers, such as baryon number, strangeness, and electric charge. T…