55 citations · 62 across the 11 of their papers we have counts for
11 papers
Quantum-Geometric Bound on Dynamical Instability in Bosonic Systems
A. M. Tishin
Quantum-geometric speed and dynamical instability are two natural rates for a driven quantum system, and their relation is unsettled even for exactly solvable dynamics. Here we sho…
Geometric Instability and Self-Limitation in Driven Quantum Systems
A. M. Tishin
We develop a unified geometric framework for local non-adiabaticity in driven quantum systems. We show that the previously introduced AMT non adiabaticity parameter arises as a spe…
Local projective reconstruction of driven bosonic Hamiltonians
A. M. Tishin
Inferring a Hamiltonian from a single quantum trajectory is generally non-unique. This ambiguity limits inverse use of projective quantum geometry. Here we show that a nearest-neig…
An Effective Scaling Framework for Non-Adiabatic Mode Dynamics
A. M. Tishin
This study proposes an effective theoretical framework for non-adiabatic parametric excitation in structured media, incorporating a nonlinear frequency regulator U as a stabilizing…
Bogoliubov mode dynamics and non-adiabatic transitions in time-varying condensed media
A. M. Tishin
This study investigates non-adiabatic wave dynamics in condensed media and the transition from adiabatic stability to spectral chaos. We introduce a dimensionless parameter, as a u…
Operating regimes and materials limits of nonlinear magnon dynamics in Co-doped YIG
A. M. Tishin
Magnonic information processing uses Kerr-type four-magnon anharmonicity to bound parametrically driven excitations. Here we show that this anharmonicity is constrained by material…