Quadratic temperature dependence of the inverse Hall angle from chiral fluctuations in the doped Hubbard model

The normal state of strongly interacting electron systems exhibits a range of anomalous transport behaviors that remain poorly understood. We use determinant quantum Monte Carlo (DQMC) simulations to study the t-t'-U Hubbard model in the presence of a magnetic field, focusing on the emergence of unconventional temperature-dependent transport signatures. We observe key scaling behaviours associated with strange metallicity, namely a quadratic scaling of the inverse Hall angle, T-linear resistivity, and 1/T scaling of R_H, without requiring disorder or other extrinsic effects. We explore a possible physical mechanism behind these scaling behaviours by considering chiral fluctuations. Our findings demonstrate the extent to which intrinsic electronic correlations can account for the transport signatures of the strange metal state.