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quant-ph2026
Time-independent counterdiabatic driving for emergent two-level subspaces in many-body systems
Simon Dengis, Peter Schlagheck
The paper demonstrates that constant‑speed geodesic motion in the quantum state manifold leads to a time‑independent counterdiabatic Hamiltonian for emergent two‑level subspaces, a…
quant-ph2024
Quasiclassical theory of out-of-time-ordered correlators
Thomas R. Michel, Juan Diego Urbina, Peter Schlagheck
Out-of-time-ordered correlators (OTOCs), defined via the squared commutator of a time-evolving and a stationary operator, represent observables that provide useful indicators for c…