Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-05-26
J.Phys.A40:F793-F804,2007
Physics
High Energy Physics
High Energy Physics - Theory
13 pages, 12 figures, to appear in Fast Track Communications, Journal of Physics A: Mathematical and Theoretical
Scientific paper
10.1088/1751-8113/40/32/F02
Many dynamical systems, such as the Lotka-Volterra predator-prey model and the Euler equations for the free rotation of a rigid body, are PT symmetric. The standard and well-known real solutions to such dynamical systems constitute an infinitessimal subclass of the full set of complex solutions. This paper examines a subset of the complex solutions that contains the real solutions, namely, those having PT symmetry. The condition of PT symmetry selects out complex solutions that are periodic.
Bender Carl M.
Holm Darryl D.
Hook Daniel W.
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