EXCEPTIONAL POINTS IN OPEN AND PT-SYMMETRIC SYSTEMS
نویسندگان
چکیده
منابع مشابه
Collectivity, Phase Transitions and Exceptional Points in Open Quantum Systems
Phase transitions in open quantum systems, which are associated with the formation of collective states of a large width and of trapped states with rather small widths, are related to exceptional points of the Hamiltonian. Exceptional points are the singularities of the spectrum and eigenfunctions, when they are considered as functions of a coupling parameter. In the present paper this paramete...
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We study the transient behavior in coupled dissipative dynamical systems based on the linear analysis around the steady state. We find that the transient time is minimized at a specific set of system parameters and show that at this parameter set, two eigenvalues and two eigenvectors of the Jacobian matrix coalesce at the same time; this degenerate point is called the exceptional point. For the...
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ژورنال
عنوان ژورنال: Acta Polytechnica
سال: 2014
ISSN: 1805-2363,1210-2709
DOI: 10.14311/ap.2014.54.0106