4 papers
The probe limit in MHD and its implications for magnetic transport
Giorgio Frangi, Matej Bajec, Guri K. Buza +2
Many phenomenological and effective field-theoretical (EFT) applications of magnetohydrodynamics (MHD) in the presence of a background magnetic field employ a simplifying assumptio…
Geometrisation of Ohm's reciprocity relation in a holographic plasma
Giorgio Frangi
It has been recently pointed out that the familiar reciprocity relation between the conductivity and resistivity , which I refer to as $\textit{Ohm's reciprocity relation}…
Quantum origin of Ohm's reciprocity relation and its violation: conductivity as inverse resistivity
Giorgio Frangi, Sašo Grozdanov
Conventional wisdom teaches us that the electrical conductivity in a material is the inverse of its resistivity. In this work, we show that when both of these transport coefficient…
Wilsonian renormalisation group and thermal field theory in the Schwinger-Keldysh closed-time-path formalism
Giorgio Frangi, Sašo Grozdanov
We study perturbative Wilsonian renormalisation group (RG) for the scalar theory at finite temperature to one loop order in the Schwinger-Keldysh closed-time-path (CTP) form…