347 citations · 2k across the 78 of their papers we have counts for
78 papers
Generic Long-Range Order-Parameter Correlations in Metallic Quantum Magnets
T. R. Kirkpatrick, D. Belitz
It is shown that in all types of metallic magnets the coupling of the order parameter to the conduction electrons leads to an order-parameter susceptibility that is long-ranged at…
Comment on "Instability of the ferromagnetic quantum critical point and symmetry of the ferromagnetic ground state in two-dimensional and three-dimensional electron gases with arbitrary spin-orbit splitting"
D. Belitz, T. R. Kirkpatrick
Metallic quantum ferromagnets in the absence of quenched disorder are known to generically undergo a first-order quantum phase transition, avoiding the quantum critical point that…
Diffusion, Long-Time Tails, and Localization in Classical and Quantum Lorentz Models: A Unifying Hydrodynamic Approach
T. R. Kirkpatrick, D. Belitz
Long-time tails, or algebraic decay of time-correlation functions, have long been known to exist both in many-body systems and in models of non-interacting particles in the presenc…
Fluctuation-Response Relation in Non-Equilibrium Systems and Active Matter
T. R. Kirkpatrick, D. Belitz
We use dynamic equations to derive a relation between correlation functions and response or relaxation functions in many-body systems. The relation is very general and holds both i…
A Fluctuation-Response Relation as a Probe of Long-Range Correlations in Non-Equilibrium Quantum and Classical Fluids
T. R. Kirkpatrick, D. Belitz
The absence of a simple fluctuation-dissipation theorem is a major obstacle for studying systems that are not in thermodynamic equilibrium. We show that for a fluid in a non-equili…
Fluctuation-dissipation relation in a non-equilibrium quantum fluid
T. R. Kirkpatrick, D. Belitz
There is no simple fluctuation-dissipation theorem (FDT) for nonequilibrium systems. We show that for a fluid in a nonequilibrium steady state (NESS) characterized by a constant te…