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arXiv · 2408.17360

Nonreciprocal Spin-Glass Transition and Aging

Giulia Garcia Lorenzana·Ada Altieri·Giulio Biroli·Michel Fruchart·Vincenzo Vitelli
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Abstract

Disordered systems generically exhibit aging and a glass transition. Previous studies have long suggested that non-reciprocity tends to destroy glassiness. Here, we show that this is not always the case using a bipartite spherical Sherrington-Kirpatrick model that describes the antagonistic coupling between two identical complex agents modeled as macroscopic spin glasses. Our dynamical mean field theory calculations reveal an exceptional-point mediated transition from a static disorder phase to an oscillating amorphous phase as well as non-reciprocal aging with slow dynamics and oscillations.

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Giulia Garcia Lorenzana, Ada Altieri, Giulio Biroli, Michel Fruchart, Vincenzo Vitelli. 2024-08-30. Nonreciprocal Spin-Glass Transition and Aging. https://doi.org/10.1103/physrevlett.135.187402

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