کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1854953 1529914 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Supersymmetry, PT-symmetry and spectral bifurcation
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
Supersymmetry, PT-symmetry and spectral bifurcation
چکیده انگلیسی

We demonstrate that large class of PT-symmetric complex potentials, which can have isospectral real partner potentials, possess two different superpotentials. In the parameter domain, where the superpotential is unique, the spectrum is real and shape-invariant, leading to translational shift in a suitable parameter by real units. The case of two different superpotentials, leading to same potential, yields broken PT-symmetry, the energy spectra in the two phases being separated by a bifurcation. Interestingly, these two superpotentials generate the two disjoint sectors of the Hilbert space. In the broken case, shape invariance produces complex parametric shifts.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Annals of Physics - Volume 325, Issue 6, June 2010, Pages 1198–1206
نویسندگان
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