12 citations · 35 across the 7 of their papers we have counts for
7 papers
Tracking real-space quantum state breathing through Floquet-projector geometry
Arpit Raj, Johannes Mitscherling, Björn Trauzettel
Periodic driving of spatially periodic quantum systems generates band structures that are absent in static crystals. We present a quantum geometric theory to characterize the Floqu…
Light-induced pseudo-magnetic fields in three-dimensional topological semimetals
Arpit Raj, Swati Chaudhary, Martin Rodriguez-Vega +3
In this work, we show that suitably designed spatially varying linearly polarized light provides a versatile route to generate and control pseudo-magnetic fields in Weyl semimetals…
Giant Shift Current in Electrically-Tunable Superlattice Bilayer Graphene
Nabil Atlam, Swati Chaudhary, Arpit Raj +4
Recent introduction of superlattice potentials has opened new avenues for engineering tunable electronic band structures featuring topologically nontrivial moiré-like bands. Here w…
Nonlinear optical responses and quantum geometry in rhombohedral trilayer graphene
Abigail Postlewaite, Arpit Raj, Swati Chaudhary +1
We theoretically study the nonlinear optical response of ABC trilayer graphene with inversion symmetry broken by the application of a displacement field perpendicular to the trilay…
Self-consistent evaluation of proximity and inverse proximity effects with pair-breaking in diffusive SN junctions
Arpit Raj, Patrick A. Lee, Gregory A. Fiete
We consider a planar superconducting-normal-metal (SN) junction with both inelastic and spin-flip scattering processes present. In the diffusive limit, we use a one-dimensional for…
Nonlinear optical responses in multi-orbital topological superconductors
Arpit Raj, Abigail Postlewaite, Swati Chaudhary +1
We theoretically study first and second-order optical responses in a transition metal dichalcogenide monolayer with distinct trivial, nodal, and time-reversal invariant topological…
Photogalvanic response in multi-Weyl semimetals
Arpit Raj, Swati Chaudhary, Gregory A. Fiete
We investigate the dependence of the photogalvanic response of a multi-Weyl semimetal on its topological charge, tilt, and chemical potential. We derive analytical expressions for…