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Slowly changing potential problems in Quantum Mechanics: Adiabatic theorems, ergodic theorems, and scattering

Journal Article · · Journal of Mathematical Physics
DOI:https://doi.org/10.1063/1.4954498· OSTI ID:22596650

We employ the recently developed multi-time scale averaging method to study the large time behavior of slowly changing (in time) Hamiltonians. We treat some known cases in a new way, such as the Zener problem, and we give another proof of the adiabatic theorem in the gapless case. We prove a new uniform ergodic theorem for slowly changing unitary operators. This theorem is then used to derive the adiabatic theorem, do the scattering theory for such Hamiltonians, and prove some classical propagation estimates and asymptotic completeness.

OSTI ID:
22596650
Journal Information:
Journal of Mathematical Physics, Journal Name: Journal of Mathematical Physics Journal Issue: 7 Vol. 57; ISSN JMAPAQ; ISSN 0022-2488
Country of Publication:
United States
Language:
English

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