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Energy landscape and flow dynamics measurements of driven-dissipative systems

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2024

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Dumont, Vincent
Catalini, Letizia
Margiani, Gabriel
Eichler, Alexander

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Deutsche Forschungsgemeinschaft (DFG): 449653034
Deutsche Forschungsgemeinschaft (DFG): SFB1432
Swiss National Science Foundation: CRSII5_206008/1

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Physical Review Research. American Physical Society (APS). 2024, 6(4), 043012. eISSN 2643-1564. Verfügbar unter: doi: 10.1103/physrevresearch.6.043012

Zusammenfassung

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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530 Physik

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ISO 690DUMONT, 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.6.043012
BibTex
@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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