Parametric Symmetry Breaking in a Nonlinear Resonator
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Much of the physical world around us can be described in terms of harmonic oscillators in thermodynamic equilibrium. At the same time, the far-from-equilibrium behavior of oscillators is important in many aspects of modern physics. Here, we investigate a resonating system subject to a fundamental interplay between intrinsic nonlinearities and a combination of several driving forces. We have constructed a controllable and robust realization of such a system using a macroscopic doubly clamped string. We experimentally observe a hitherto unseen double hysteresis in both the amplitude and the phase of the resonator’s response function and present a theoretical model that is in excellent agreement with the experiment. Our work unveils that the double hysteresis is a manifestation of an out-of-equilibrium symmetry breaking between parametric phase states. Such a fundamental phenomenon, in the most ubiquitous building block of nature, paves the way for the investigation of new dynamical phases of matter in parametrically driven many-body systems and motivates applications ranging from ultrasensitive force detection to low-energy computing memory units.
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LEUCH, Anina, Luca PAPARIELLO, Oded ZILBERBERG, Christian L. DEGEN, Ramasubramanian CHITRA, Alexander EICHLER, 2016. Parametric Symmetry Breaking in a Nonlinear Resonator. In: Physical Review Letters. American Physical Society (APS). 2016, 117(21), 214101. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.117.214101BibTex
@article{Leuch2016-11-18Param-54946, year={2016}, doi={10.1103/PhysRevLett.117.214101}, title={Parametric Symmetry Breaking in a Nonlinear Resonator}, number={21}, volume={117}, issn={0031-9007}, journal={Physical Review Letters}, author={Leuch, Anina and Papariello, Luca and Zilberberg, Oded and Degen, Christian L. and Chitra, Ramasubramanian and Eichler, Alexander}, note={Article Number: 214101} }
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