21 citations · 32 across the 7 of their papers we have counts for
3 papers · 1 filter
Nonadiabatic transitions during a passage near a critical point
Nikolai A. Sinitsyn, Vijay Ganesh Sadhasivam, Fumika Suzuki
The passage through a critical point of a many-body quantum system leads to abundant nonadiabatic excitations. Here, we explore a regime, in which the critical point is not crossed…
Thermal quenching of classical and semiclassical scrambling
Vijay Ganesh Sadhasivam, Andrew C. Hunt, Lars Meuser +2
Quantum scrambling often gives rise to short-time exponential growth in out-of-time-ordered correlators (OTOCs). The scrambling rate over an isolated saddle point at finite tempera…
Instantons and the quantum bound to chaos
Vijay Ganesh Sadhasivam, Lars Meuser, David R. Reichman +1
We investigate why the Lyapunov exponents of out-of-time-ordered correlators (OTOCs) satisfy a universal bound by probing imaginary-time path-integral spa…