# TOPICAL REVIEW: Rare region effects at classical, quantum and nonequilibrium phase transitions

@article{Vojta2006TOPICALRR, title={TOPICAL REVIEW: Rare region effects at classical, quantum and nonequilibrium phase transitions}, author={Thomas Vojta}, journal={Journal of Physics A}, year={2006} }

Rare regions, i.e., rare large spatial disorder fluctuations, can dramatically change the properties of a phase transition in a quenched disordered system. In generic classical equilibrium systems, they lead to an essential singularity, the so-called Griffiths singularity, of the free energy in the vicinity of the phase transition. Stronger effects can be observed at zero-temperature quantum phase transitions, at nonequilibrium phase transitions and in systems with correlated disorder. In some…

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