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arXiv · 1907.05179

Stretching potential engineering

Stefano Cusumano·Antonella De Pasquale·Giuseppe Carlo La Rocca·Vittorio Giovannetti
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Abstract

As the possibility to decouple temporal and spatial variations of the electromagnetic field, leading to a wavelength stretching, has been recognized to be of paramount importance for practical applications, we generalize the idea of stretchability from the framework of electromagnetic waves to massive particles. A necessary and sufficient condition which allows one to identify energetically stable configuration of a 1D quantum particle characterized by arbitrary large spatial regions where the associated wave-function exhibit a flat, non-zero profile is presented, together with examples on well-known and widely used potential profiles and an application to 2D models.

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Stefano Cusumano, Antonella De Pasquale, Giuseppe Carlo La Rocca, Vittorio Giovannetti. 2019-07-11. Stretching potential engineering. https://doi.org/10.1088/1751-8121%2Fab59ee

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