Publikation: Energy landscape and flow dynamics measurements of driven-dissipative systems
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Many experimental techniques aim at determining the energy landscape of a system given and compare it to a model Hamiltonian. This landscape governs the system's evolution in the absence of dissipation. Here, we theoretically propose and experimentally demonstrate a method to measure the energy landscape of a system without knowing its functional form. A crucial ingredient for our method is the presence of dissipation, which enables sampling of the landscape over a large area of phase space through ringdown-type measurements, overcoming the main limitation of previous techniques. We apply the method to a driven-dissipative system–a parametric oscillator–observed in a rotating frame. We first measure the phase-space flow dynamics of the system via ringdown measurements, unveiling its attractors and separatrices. With these measurements, we reconstruct the (quasi-)energy landscape of the system. Furthermore, we demonstrate that our method provides direct experimental access to the so-called symplectic norm of the stationary states of the system, which is tied to the particle- or holelike nature of excitations of these states. In this way, we establish a method to identify qualitative differences between the fluctuations around stabilized minima and maxima of the nonlinear out-of-equilibrium stationary states. Our method constitutes a versatile approach to characterize a wide class of driven-dissipative systems.
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DUMONT, Vincent, Markus BESTLER, Letizia CATALINI, Gabriel MARGIANI, Oded ZILBERBERG, Alexander EICHLER, 2024. Energy landscape and flow dynamics measurements of driven-dissipative systems. In: Physical Review Research. American Physical Society (APS). 2024, 6(4), 043012. eISSN 2643-1564. Verfügbar unter: doi: 10.1103/physrevresearch.6.043012BibTex
@article{Dumont2024-10-04Energ-70978, year={2024}, doi={10.1103/physrevresearch.6.043012}, title={Energy landscape and flow dynamics measurements of driven-dissipative systems}, number={4}, volume={6}, journal={Physical Review Research}, author={Dumont, Vincent and Bestler, Markus and Catalini, Letizia and Margiani, Gabriel and Zilberberg, Oded and Eichler, Alexander}, note={Article Number: 043012} }
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