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arXiv · 2011.06256

Long-range phase order in two dimensions under shear flow

Hiroyoshi Nakano·Yuki Minami·Shin-ichi Sasa
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Abstract

We theoretically and numerically investigate a two-dimensional O(2) model where an order parameter is convected by shear flow. We show that a long-range phase order emerges in two dimensions as a result of anomalous suppression of phase fluctuations by the shear flow. Furthermore, we use the finite-size scaling theory to demonstrate that a phase transition to the long-range ordered state from the disordered state is second order. At a transition point far from equilibrium, the critical exponents turn out to be close to the mean-field value for equilibrium systems.

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Hiroyoshi Nakano, Yuki Minami, Shin-ichi Sasa. 2021-04-01. Long-range phase order in two dimensions under shear flow. https://doi.org/10.1103/physrevlett.126.160604

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