Quantum Criticality — Hertz-Millis-Moriya

At a quantum critical point (QCP), quantum fluctuations diverge at T=0. The Hertz-Millis-Moriya theory describes non-Fermi liquid behavior driven by critical bosonic fluctuations, with self-energy Σ~ω^(2/3) and resistivity ρ~T^(5/3) for 3D antiferromagnets.

QUANTUM CRITICALITY CONTROLS

Tuning parameter r (pressure/B) 0.00

Dynamical exponent z 2

Correlation length exponent ν 0.50

Dimension d 3

Critical fluctuation strength 1.00