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Microwave experiments using open chaotic cavities in the realm of the effective Hamiltonian formalism
Author(s) -
Kuhl U.,
Legrand O.,
Mortessagne F.
Publication year - 2013
Publication title -
fortschritte der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/prop.201200101
Subject(s) - hamiltonian (control theory) , eigenfunction , microwave , physics , minimal coupling , chaotic , classical mechanics , formalism (music) , quantum mechanics , statistical physics , computer science , mathematics , art , mathematical optimization , musical , eigenvalues and eigenvectors , artificial intelligence , visual arts
The description of open quantum system successfully uses the concept of the effective Hamiltonian, which takes into account the coupling to the environment. The concept can be extended to classical waves. Experimentally, classical waves are very convenient as they allow to control boundaries, coupling and absorption. We combine here recent works with microwaves investigating properties of open systems which can be described by an effective Hamiltonian. This ranges from spectral properties like modifications to level dynamics, width distribution and coupling fidelity to spatial properties like intensity distributions and complexness parameter which describes the non‐orthogonality of eigenfunctions.