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Extracting the lifetime of a synthetic two-level system
Gabriel Margiani, Sebastian Guerrero, Toni L. Heugel +11
The Kerr Parametric Oscillator (KPO) is a nonlinear resonator system that is often described as a synthetic two-level system. In the presence of noise, the system switches between…
Strong parametric coupling between two ultra-coherent membrane modes
David Hälg, Thomas Gisler, Eric C. Langman +5
We demonstrate parametric coupling between two modes of a silicon nitride membrane. We achieve the coupling by applying an oscillating voltage to a sharp metal tip that approaches…
Many-body localization in the interpolating Aubry-André-Fibonacci model
Antonio Štrkalj, Elmer V. H. Doggen, Igor V. Gornyi +1
We investigate the localization properties of a spin chain with an antiferromagnetic nearest-neighbour coupling, subject to an external quasiperiodic on-site magnetic field. The qu…
Emerging dissipative phases in a superradiant quantum gas with tunable decay
Francesco Ferri, Rodrigo Rosa-Medina, Fabian Finger +5
Exposing a many-body system to external drives and losses can transform the nature of its phases and opens perspectives for engineering new properties of matter. How such character…
Second-order topological modes in two-dimensional continuous media
Jan Košata, Oded Zilberberg
We present a symmetry-based scheme to create 0D second-order topological modes in continuous 2D systems. We show that a metamaterial with a \textit{p6m}-symmetric pattern exhibits…
Ising machines with strong bilinear coupling
Toni L. Heugel, Oded Zilberberg, Christian Marty +2
Networks of coupled parametric resonators (parametrons) hold promise for parallel computing architectures. En route to realizing complex networks, we report an experimental and the…