10 papers
Floquet Quasiparticle Poisoning of Frozonium
Haoyu Guo, Debanjan Chowdhury
Periodic driving can suppress the Josephson nonlinearity of a fluxonium superconducting circuit, producing a nearly harmonic Floquet spectrum at isolated freezing points [K. Lewell…
Dynamical Control of Superconductivity in Superconductor-Ferromagnet Bilayers
Dimitri Pimenov, Nicholas R. Poniatowski, Charlotte G. L. Bøttcher +2
We study a simplified model of a ferromagnetic metal proximitized by a fully-gapped wave superconductor and integrated with a microwave resonator. The low-energy excitations in…
Charting the emergent low-dimensional manifold of quantum materials
Jason Z. Kim, Omri Lesser, Debanjan Chowdhury
The periodic table of elements transformed chemistry by revealing simple organizing principles underlying atomic behavior. Despite decades of effort, no analogous framework has eme…
Can electronic quantum criticality drive phonon-induced linear-in-temperature resistivity?
Haoyu Guo, Debanjan Chowdhury
Optical phonons naturally generate linear-in- resistivity in the high-temperature equipartition regime, but their finite gap prevents this mechanism from surviving to asymptotic…
Competing nonlinearities, criticality, and order-to-chaos transition in deep networks
Omri Lesser, Debanjan Chowdhury
Deep neural networks owe their expressive power to nonlinear activation functions. The effective field theory of signal propagation at initialization reveals a few distinct univers…
Frozonium: Freezing Anharmonicity in Floquet Superconducting Circuits
Keiran Lewellen, Rohit Mukherjee, Haoyu Guo +3
Floquet engineering is a powerful method that can be used to modify the properties of interacting many-body Hamiltonians via the application of periodic time-dependent drives. Here…