3 papers
hep-th2026
The physical meaning of the Belinfante-Rosenfeld ambiguity
Ioannis Matthaiakakis
Current literature lacks consensus on how to theoretically describe spin polarization and its transport in matter. The underlying reason is the presence of the Belinfante-Rosenfeld…
cond-mat.mes-hall2026
Torsional Hall Viscosity of Massive Chern Insulators: Magnetic Field and Momentum Deformations
Ioannis Matthaiakakis, Weizhen Jia, Raffael L. Klees +7
This work focuses on the non-dissipative, parity-odd spin transport of -dimensional relativistic electrons, generated by torsion, and the torsional Hall viscosity $ζ_{\rm H}…
hep-th2024
The chiral torsional anomaly and the Nieh-Yan invariant with and without boundaries
Johanna Erdmenger, Ioannis Matthaiakakis, René Meyer +1
There exists a long-standing debate regarding the torsion contribution to the 4d chiral anomaly of a Dirac fermion. Central to this debate is the Nieh-Yan anomaly, which has been c…