Handedness of complex PT-symmetric potential barriers

Details Handedness of complex PT-symmetric potential barriers Handedness of complex PT-symmetric potential barriers

2003-12-18

arxiv.org/abs/quant-ph/0312151v1

Phys.Lett. A324 (2004) 152-158

Physics

Quantum Physics

9 pages and 4 figures

Scientific paper

10.1016/j.physleta.2004.03.002

Generally, when imaginary part of an optical potential is non-symmetric the reflectivity, $R(E)$, shows left/right handedness, further if it is not negative-definite the reflection and transmission, $T(E)$, coefficients become anomalous in some energy intervals and absorption is indefinite ($\pm$). We find that the complex PT-symmetric potentials could be exceptional in this regard. They may act effectively like an absorptive potential for any incident energy provided the particle enters from the preferred (absorptive) side.

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