Emergent kinetic constraints in open quantum systems

Kinetically constrained spin systems play an important role in understanding key properties of the dynamics of slowly relaxing materials, such as glasses. So far kinetic constraints have been introduced in idealised models aiming to capture specific dynamical properties of these systems. However, recently it has been experimentally shown by [M. Valado et al., arXiv:1508.04384 (2015)] that manifest kinetic constraints indeed govern the evolution of strongly interacting gases of highly excited atoms in a noisy environment. Motivated by this development we address and discuss the question concerning the type of kinetically constrained dynamics which can generally emerge in quantum spin systems subject to strong noise. We discuss an experimentally-realizable case which displays collective behavior, timescale separation and dynamical reducibility.

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