Perturbation Theory for PT-Symmetric Sinusoidal Optical Lattices at the Symmetry-Breaking Threshold
The <em>PT</em> symmetric potential V<sub>0</sub>[cos(<em>2πx/a</em>) + <em>iλ</em> sin(2<em>πx/a</em>)] has a completely real spectrum for λ ≤ 1, and begins to develop complex eigenvalues for λ > 1. At the symmetry-breaking threshol...
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| Format: | Article |
| Language: | English |
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CTU Central Library
2011-01-01
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| Series: | Acta Polytechnica |
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| Online Access: | https://ojs.cvut.cz/ojs/index.php/ap/article/view/1396 |