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Paper detail

Hidden free energy released by explicit parity-time-symmetry breaking

It is shown that the familiar two-stream instability is the result of spontaneous parity-time (PT)-symmetry breaking in a conservative system, and more importantly, explicit PT-symmetry breaking by viscosity can destabilize the system in certain parameter regimes that are stable when viscosity vanishes. This reveals that complex systems may possess hidden free energies protected by PT-symmetry and viscosity, albeit dissipative, can expose the systems to these freed energies by breaking PT-symmetry explicitly. Such a process is accompanied by instability and total variation growth.

preprint2026arXivOpen access
Hong QinWilliam DorlandBen Y. Israeli
physics.plasm-phphysics.comp-phmath-phmath.MPphysics.flu-dyn
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Hong QinWilliam DorlandBen Y. Israeli

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