216 citations · 1.6k across the 27 of their papers we have counts for
8 papers · 1 filter
Transport on a topological insulator surface with a time-dependent magnetic barrier
Adithi Udupa, K. Sengupta, Diptiman Sen
We study transport across a time-dependent magnetic barrier present on the surface of a three-dimensional topological insulator. We show that such a barrier can be implemented for…
Dynamical Freezing and Scar Points in Strongly Driven Floquet Matter: Resonance vs Emergent Conservation Laws
Asmi Haldar, Diptiman Sen, Roderich Moessner +1
We consider a clean quantum system subject to strong periodic driving. The existence of a dominant energy scale, , can generate considerable structure in an effective descri…
Collapse and revival of quantum many-body scars via Floquet engineering
Bhaskar Mukherjee, Sourav Nandy, Arnab Sen +2
The presence of quantum scars, athermal eigenstates of a many-body Hamiltonian with finite energy density, leads to absence of ergodicity and long-time coherent dynamics in closed…
Dynamics of quasiperiodically driven spin systems
Sayak Ray, Subhasis Sinha, Diptiman Sen
We study the stroboscopic dynamics of a spin- object subjected to -function kicking in the transverse magnetic field which is generated following the Fibonacci sequence. The…
Low temperature saturation of phase coherence length in topological insulators
Saurav Islam, Semonti Bhattacharyya, Hariharan Nhalil +7
Implementing topological insulators as elementary units in quantum technologies requires a comprehensive understanding of the dephasing mechanisms governing the surface carriers in…
Effective theories for quantum spin clusters: Geometric phases and state selection by singularity
Subhankar Khatua, Diptiman Sen, R. Ganesh
Magnetic systems with frustration often have large classical degeneracy. We show that their low-energy physics can be understood as dynamics within the space of classical ground st…