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19.370  Articles
1 of 1.937 pages  |  10  records  |  more records»
We study spectral behaviour of linear operator using matrix diagonalisation method and notice that spectral breaking is an inherent behaviour in PT -symmetry .

We continue in the direction of our paper on PT-Symmetry in (Generalized) Effect Algebras and Partial Groups. Namely we extend our considerations to the setting of weakly ordered partial groups. In this setting, any operator weakly ordered partial group i... see more

We briefly explain some simple arguments based on pseudo Hermiticity, supersymmetry and PT-symmetry which explain the reality of the spectrum of some non-Hermitian Hamiltonians. Subsequently we employ PT-symmetry as a guiding principle to construct deform... see more

We present a general procedure by which solvable non-central potentials can be obtained in 2 and 3 dimensions by the separation of the angular and radial variables. The method is applied to generate solvable non-central PT-symmetric potentials in polar co... see more

We investigate the Gross-Pitaevskii equation for a Bose-Einstein condensate in a PT symmetric double-well potential by means of the time-dependent variational principle and numerically exact solutions. A one-dimensional and a fully three-dimensional setup... see more

Problems of the Standard Model, associated with the introduction of an electromagnetic field as a linear combination of fields on which various gauge groups representations are implemented, are analyzed. In this paper, we pay attention to the fact th... see more

Introduction: To evaluate the cosmetic results and recurrence of unilateral frontalis sling surgery using a silicone rod compared with autogenous fascia lata in cases of simple congenital ptosis.Methods: This is a retrospective comparative study of 59 pat... see more

The wave functions and the energy spectrum of PT-/non-PT-Symmetric and non-Hermitian Hulthen potential are of an exponential type and are obtained via the path integral. The path integral is constructed using parametric time and point transformation.

The PT symmetric potential V0[cos(2px/a) + i? sin(2px/a)] has a completely real spectrum for ? = 1, and begins to develop complex eigenvalues for ? > 1. At the symmetry-breaking threshold ? = 1 some of the eigenvectors become degenerate, giving rise to... see more

1 of 1.937 pages  |  10  records  |  more records»