Violations of local equilibrium and linear response in classical lattice theories

Details Violations of local equilibrium and linear response in classical lattice theories Violations of local equilibrium and linear response in classical lattice theories

2001-10-17

arxiv.org/abs/hep-ph/0110224v1

Phys.Lett. A309 (2003) 377-381

Physics

High Energy Physics

High Energy Physics - Phenomenology

7pp, 4figs, talk given by KA at "Thermal field theory and applications" workshop 2001

Scientific paper

10.1016/S0375-9601(03)00293-7

We study the dynamics of $\phi^4$ theory and the FPU $\beta$ model under thermal gradients, from first principles. We analyze quantitatively how local equilibrium and linear response are violated, paying special care to how we find observables that unambiguously display these violations. Relations between these quantities to equations of state are also examined. Further, we discuss how we can approach similar dynamical problems in continuum quantum field theory. We analyze how close we are to obtaining the continuum results.

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