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Detection of avoided crossings by fidelity

✍ Scribed by Patrick Plötz; Michael Lubasch; Sandro Wimberger

Book ID
108237210
Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
381 KB
Volume
390
Category
Article
ISSN
0378-4371

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## Abstract A purely mathematical heuristic model is examined in order to explain the existence of an avoided crossing between two dispersion curves calculated for a certain potential energy surface designed to simulate the dynamics of a linear polyethylene chain. The model shows that a third mode