- Emeritus

## Gary Morriss

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## Department:

## Research Group(s):

## Education:

- BMath N'cle (NSW),
- PhD Melb.

## Research Interests:

Nonequilibrium statistical mechanics and dynamical systems, New ideas and techniques from the modern theories of chaotic dynamical systems suggest that a new fundamental conceptual basis for a theory of nonequilibrium steady states is possible. We have proved the conjugate pairing rule for a class of thermostatted nonequilibrium steady states and together with Evans and Cohen established the fluctuation theorem.

Probing the hyperbolicity of high dimensional systems at equilibrium and nonequilibrium by calculating the instantaneous stable and unstable manifolds using covariant Lyapunov vectors has given a rich understanding of system behaviour.

Current projects include heat conduction in quasi-one-dimensional systems and nonequilibrium entropy.

## Selected Publications:

Denis J. Evans, E.G.D. Cohen & G. P. Morriss, Probability of Second Law Violations in Shearing Steady States, 1993, *Physical Review Letters, ***71,** 2401-2404; "Erratum", **71, **3616.

C. P. Dettmann & G. P. Morriss, Proof of Lyapunov exponent pairing for systems at constant kinetic energy, 1996, *Physical Review, ***E53,** R5545-5548.

G. P. Morriss & C. P. Dettmann, Thermostats: Analysis and application, 1998, *Chaos,* **8,** 321-336.

T. Taniguchi & G. P. Morriss, Time-oscillating Lyapunov modes and auto-correlation functions for quasi-one-dimensional systems, 2005, *Physical Review Letters*, **94**, 154101-4.

T. Chung, D. Truant & G. P. Morriss, Lyapunov Modes as Fields, 2011* Physical Review* **E83**, 046216.

G. P. Morriss & D. P. Truant, A review of the Hydrodynamic Lyapunov modes of hard disk systems, 2013, *Journal of Physics* A: Math. Theor. **46**, 254010.

G. P. Morriss & D. P. Truant, Dissipation and Entropy Production in Deterministic Heat Conduction of Quasi-one-dimensional Systems, 2013, Phys. Rev. E. **87**, 062144.

G. P. Morriss, Calculating the local nonequilibrium configurational entropy in quasi-one-dimensional heat conduction, 2015, Molecular Simulation, 1066502.