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Updated: Jan 11, 2026
08:55
Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
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Nonreciprocally coupled spin glasses: Exceptional-point-mediated phase transitions and aging
Giulia Garcia Lorenzana1,2, Ada Altieri2, Giulio Biroli1
1Laboratoire de Physique de l'École normale supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, F-75005 Paris, France.
Physical Review. E
|November 18, 2025
Summary
Nonreciprocal interactions in disordered systems do not always destroy aging. The system
Area of Science:
- Statistical Mechanics
- Complex Systems
Background:
- Disordered systems exhibit aging, a slowdown in dynamics.
- Nonreciprocal interactions were thought to disrupt aging.
Purpose of the Study:
- Investigate how system structure affects aging with nonreciprocity.
- Explore aging in macroscopic, complex agents with nonreciprocal coupling.
Main Methods:
- Dynamical mean-field theory calculations.
- Modeling two identical spin glasses with nonreciprocal coupling.
Main Results:
- A finite temperature transition to a non-time-translationally-invariant regime.
- Macroscopic oscillations superimposed on aging, mediated by exceptional points.
- System rotation in the plane of lowest energy modes.
Conclusions:
- Aging can survive nonreciprocal interactions in systems with macroscopic agents.
- Distinguishes between microscopic and macroscopic nonreciprocity effects on aging.
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