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Bulgakov, E. N. Phase rigidity and avoided level crossings in the complex energy plane / E. N. Bulgakov, I. . Rotter, A. F. Sadreev> // Phys. Rev. E. - 2006. - Vol. 74, Is. 5. - Ст. 56204, DOI 10.1103/PhysRevE.74.056204. - Cited References: 40
. - ISSN 1539-3755РУБ Physics, Fluids & Plasmas + Physics, Mathematical Рубрики: OPEN QUANTUM-SYSTEMS FANO RESONANCES S-MATRIX DOT CONTINUUM TRANSMISSION COHERENCE TRANSPORT BILLIARDS PROBE Кл.слова (ненормированные): Eigenvalues and eigenfunctions -- Hamiltonians -- Resonance -- Rigidity -- Semiconductor quantum dots -- Biorthogonal eigenfunctions -- Open quantum system -- Phase rigidity -- Quantum theory Аннотация: We consider the effective Hamiltonian of an open quantum system, its biorthogonal eigenfunctions phi(lambda), and define the value r(lambda)=(phi(lambda)parallel to phi(lambda))/ that characterizes the phase rigidity of the eigenfunctions phi(lambda). In the scenario with avoided level crossings, r(lambda) varies between 1 and 0 due to the mutual influence of neighboring resonances. The variation of r(lambda) is an internal property of an open quantum system. In the literature, the phase rigidity rho of the scattering wave function Psi(E)(C) is considered. Since Psi(E)(C) can be represented in the interior of the system by the phi(lambda), the phase rigidity rho of the Psi(E)(C) is related to the r(lambda) and therefore also to the mutual influence of neighboring resonances. As a consequence, the reduction of the phase rigidity rho to values smaller than 1 should be considered, at least partly, as an internal property of an open quantum system in the overlapping regime. The relation to measurable values such as the transmission through a quantum dot, follows from the fact that the transmission is, in any case, resonant at energies that are determined by the real part of the eigenvalues of the effective Hamiltonian. We illustrate the relation between phase rigidity rho and transmission numerically for small open cavities.
WOS, Scopus, Читать в сети ИФ Держатели документа: Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia Linkoping Univ, Dept Phys & Measurement Technol, S-58183 Linkoping, Sweden ИФ СО РАН Max-Planck-Institut fur Physik Komplexer Systeme, D-01187 Dresden, Germany Kirensky Institute of Physics, 660036 Krasnoyarsk, Russian Federation Department of Physics and Measurement, Technology Linkoping University, S-581 83 Linkoping, Sweden Доп.точки доступа: Rotter, I.; Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич } Найти похожие
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