Nonlinear Odd Viscoelastic Effect
- URL: http://arxiv.org/abs/2511.22706v1
- Date: Thu, 27 Nov 2025 18:59:34 GMT
- Title: Nonlinear Odd Viscoelastic Effect
- Authors: Ashwat Jain, Wojciech J. Jankowski, M. Mehraeen, Robert-Jan Slager,
- Abstract summary: We show that dissipationless effects arise upon combining strains in two directions, yielding momentum flow in the third direction.<n>We demonstrate that the effect arises from nontrivial geometric tensors in quantum states, and can be scaled up with integer topological invariants.<n>Our findings unravel the role of multistate geometry in viscoelastic phenomena, paving a path for experimental observation of uncharted nonlinear odd viscoelastic responses in quantum systems.
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- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We uncover a class of nonlinear odd viscoelastic effects in three spatial dimensions. We show that these dissipationless effects arise upon combining strains in two orthogonal directions, yielding momentum flow in the third direction. We demonstrate that the effect arises from nontrivial geometric tensors in quantum states, and can be scaled up with integer topological invariants. We further demonstrate that the effect fingerprints the multiband Hilbert-space geometry of underlying quantum states, as encoded in three-state geometric tensors. Our findings unravel the role of multistate geometry in viscoelastic phenomena, paving a path for experimental observation of uncharted nonlinear odd viscoelastic responses in quantum systems.
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