Time-Energy coherent states and adiabatic scattering

Details Time-Energy coherent states and adiabatic scattering Time-Energy coherent states and adiabatic scattering

2002-02-14

arxiv.org/abs/math-ph/0202021v1

Physics

Mathematical Physics

11 pages, 1 figure

Scientific paper

Coherent states in the time-energy plane provide a natural basis to study adiabatic scattering. We relate the (diagonal) matrix elements of the scattering matrix in this basis with the frozen on-shell scattering data. We describe an exactly solvable model, and show that the error in the frozen data cannot be estimated by the Wigner time delay alone. We introduce the notion of energy shift, a conjugate of Wigner time delay, and show that for incoming state $\rho(H_0)$ the energy shift determines the outgoing state.

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