535 citations · 1.1k across the 14 of their papers we have counts for
13 papers
Bootstrap certification of string order in quantum spin chains
Sagnik Banerjee, Haoyu Guo, Debanjan Chowdhury
The many-body bootstrap certifies ground-state properties by minimizing energy over correlators constrained only by positivity, without any variational wavefunction. Its cost, howe…
Resolving unconventional gap structure in kagome superconductors with hybrid microwave circuits
Yejin Lee, Haolin Jin, Sushmita Chandra +12
Unconventional superconductivity is a hallmark of exotic quantum matter, where determining the pairing symmetry is essential for uncovering its microscopic origin. Kagome supercond…
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…
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…
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…
Phonon Induced Energy Relaxation in Quantum Critical Metals
Haoyu Guo, Debanjan Chowdhury
Metals at the brink of electronic quantum phase transitions display high-temperature superconductivity, competing orders, and unconventional charge transport, revealing strong depa…
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…
Floquet-Thermalization via Instantons near Dynamical Freezing
Rohit Mukherjee, Haoyu Guo, Debanjan Chowdhury
Periodically driven Floquet quantum many-body systems have revealed new insights into the rich interplay of thermalization, and growth of entanglement. The phenomenology of dynamic…
Arresting Quantum Chaos Dynamically in Transmon Arrays
Rohit Mukherjee, Haoyu Guo, Keiran Lewellen +1
Ergodic quantum many-body systems evolving under unitary time dynamics typically lose memory of their initial state via information scrambling. Here we consider a paradigmatic tran…
Dynamical Freezing in Exactly Solvable Models of Driven Chaotic Quantum Dots
Haoyu Guo, Rohit Mukherjee, Debanjan Chowdhury
The late-time equilibrium behavior of generic interacting models is determined by the coupled hydrodynamic equations associated with the globally conserved quantities. In the prese…
Strange metal in magic-angle graphene with near Planckian dissipation
Yuan Cao, Debanjan Chowdhury, Daniel Rodan-Legrain +5
Recent experiments on magic-angle twisted bilayer graphene have discovered correlated insulating behavior and superconductivity at a fractional filling of an isolated narrow band.…