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On the Schrödinger Equation for Time-Dependent Hamiltonians with a Constant Form Domain

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URI: https://hdl.handle.net/10016/35247
ISSN: 2227-7390
DOI: https://doi.org/10.3390/math10020218
UXXI: AR/0000030936
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Schrodinger_MATHEMATICS_2022.pdf (407.41 KB)
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2022-01-11
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MDPI AG
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Abstract
We study two seminal approaches, developed by B. Simon and J. Kisynski, to the wellposedness of the Schrödinger equation with a time-dependent Hamiltonian. In both cases, the Hamiltonian is assumed to be semibounded from below and to have a constant form domain, but a possibly non-constant operator domain. The problem is addressed in the abstract setting, without assuming any specific functional expression for the Hamiltonian. The connection between the two approaches is the relation between sesquilinear forms and the bounded linear operators representing them. We provide a characterisation of the continuity and differentiability properties of form-valued and operator-valued functions, which enables an extensive comparison between the two approaches and their technical assumptions.
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Schrödinger equation, Time-dependent hamiltonian, Hilbert scales, Time-dependent domain
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Balmaseda, A., Lonigro, D., & Pérez-Pardo, J. M. (2022). On the Schrödinger Equation for Time-Dependent Hamiltonians with a Constant Form Domain. In Mathematics, 10(2), 218-238
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