{'fraction_non_alphanumeric': 0.02177293934681182, 'fraction_numerical': 0.0, 'mean_word_length': 5.0754716981132075, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Dynamics of self-trapping on a dimer with anharmonic coupling.

The dynamics of electron self-trapping on a dimer is studied with Poincar\'e maps. Formation of two symmetric trapping zones consisting of resonant tori is shown to occur as the electron-phonon coupling increases. When the vibrational anharmonic coupling is sufficiently strong, we observe a symmetry breaking caused by the induced stochasticity that destroys all the tori of one trapping zone while leaving those of the other zone unaffected. Chaotic and regular motion, thus, simultaneously exist on different sites, trapping the electron only on the site with periodic motion.