2 papers
math-ph2007
Dynamical Lower Bounds for 1D Dirac Operators
Roberto A. Prado, Cesar R. de Oliveira
Quantum dynamical lower bounds for continuous and discrete one-dimensional Dirac operators are established in terms of transfer matrices. Then such results are applied to various m…
math-ph2007
Quantum Hamiltonians with Quasi-Ballistic Dynamics and Point Spectrum
Cesar R. de Oliveira, Roberto A. Prado
Consider the family of Schrödinger operators (and also its Dirac version) on or \[ H^W_{ω,S}=Δ+ λF(S^nω) + W, \quad ω\inΩ, \] where is…