The PT Symmeter » Hendrik B. Geyer http://ptsymmetry.net PT Symmetry articles and information Wed, 24 Dec 2014 09:54:41 +0000 en hourly 1 http://wordpress.org/?v=3.0.4 PT-symmetric quantum systems with positive P http://ptsymmetry.net/?p=686&utm_source=rss&utm_medium=rss&utm_campaign=pt-symmetric-quantum-systems-with-positive-p http://ptsymmetry.net/?p=686#comments Wed, 25 Jan 2012 07:52:16 +0000 dwh http://ptsymmetry.net/?p=686 Miloslav Znojil, Hendrik B. Geyer

A new version of PT-symmetric quantum theory is proposed and illustrated by an N-site-lattice Legendre oscillator. The essence of the innovation lies in the replacement of parity P (serving as an indefinite metric in an auxiliary Krein space) by its non-involutory alternative P(positive)=Q>0 playing the role of a positive-definite nontrivial metric in an auxiliary, redundant, unphysical Hilbert space. It is shown that the QT-symmetry of this form remains appealing and technically useful.

http://arxiv.org/abs/1201.5058
Quantum Physics (quant-ph)

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