74 citations · 83 across the 8 of their papers we have counts for
8 papers
Magic Without Entanglement: Exact Revivals and Their Fisher Information Origin
Rishabh Jha, Karun Gadge
Magic and entanglement are independent quantum resources, yet their exact relation in many-body dynamics has remained elusive. We uncover two structural principles. First, at any s…
A comparative study of perturbative and nonequilibrium Green's function approaches for Floquet sidebands in periodically driven quantum systems
Karun Gadge, Marco Merboldt, Michael Schüler +6
We compare two complementary theoretical approaches to compute and interpret Floquet sidebands in periodically driven quantum materials: a first-order perturbative approach (first-…
Temporal Entanglement Transitions in the Periodically Driven Ising Chain
Karun Gadge, Abhinav Prem, Rishabh Jha
Periodically driven quantum systems can host non-equilibrium phenomena without static analogs, including in their entanglement dynamics. Here, we discover …
Stability of Floquet sidebands and quantum coherence in 1D strongly interacting spinless fermions
Karun Gadge, Salvatore R. Manmana
For strongly correlated quantum systems, fundamental questions about the formation and stability of Floquet-Bloch sidebands (FBs) upon periodic driving remain unresolved. Here, we…
Observation of Floquet states in graphene
Marco Merboldt, Michael Schüler, David Schmitt +11
Recent advances in the field of condensed-matter physics have unlocked the potential to realize and control emergent material phases that do not exist in thermal equilibrium. One o…
Valley-controlled photoswitching of metal-insulator nanotextures
Hannes Böckmann, Jan Gerrit Horstmann, Felix Kurtz +5
Spatial heterogeneity and phase competition are hallmarks of strongly-correlated materials, promising tunable functionality on the nanoscale. Light-induced switching of a correlate…
Disentanglement, disorder lines, and Majorana edge states in a solvable quantum chain
Gennady Y. Chitov, Karun Gadge, P. N. Timonin
We study the exactly solvable 1D model: the dimerized chain with uniform and staggered transverse fields, equivalent upon fermionization to the noninteracting dimerized Kitaev…
Anomalous transport in Kane fermions
Karun Gadge, Sumanta Tewari, Gargee Sharma
Kane fermions are characterized by a linear Dirac cone intersecting with a flat band, resembling a pseudo-spin-1 Dirac semimetal. Similar to relativistic Dirac fermions, Kane fermi…