Canali di smorzamento dell'ampiezza multilivello risonanti

Canali di smorzamento dell'ampiezza multilivello risonanti

Canali di smorzamento di ampiezza multilivello risonanti PlatoBlockchain Data Intelligence. Ricerca verticale. Ai.

Stefano Chessa1,2 ed Vittorio Giovannetti1

1NEST, Scuola Normale Superiore e Istituto Nanoscienze-CNR, I-56126 Pisa, Italia
2Ingegneria Elettrica e Informatica, Università dell'Illinois Urbana-Champaign, Urbana, Illinois, 61801, USA

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Astratto

Introduciamo un nuovo set di canali quantistici: canali Resonant Multilevel Amplitude Damping (ReMAD). Tra gli altri casi, possono descrivere gli effetti di dissipazione di energia in sistemi atomici multilivello indotti dall'interazione con un ambiente bosonico a temperatura zero. A differenza della classe già nota dei canali MAD (multilevel amplitude Damping), questa nuova classe di mappe consente la presenza di un ambiente incapace di discriminare transizioni con identici gap energetici. Dopo aver caratterizzato l'algebra delle loro regole di composizione, analizzando il caso qutrit, mostriamo che questo nuovo insieme di canali può mostrare degradabilità e antidegradabilità in vaste regioni dello spazio dei parametri consentiti. Lì calcoliamo la loro capacità quantistica e la capacità classica privata. Mostriamo che queste capacità possono essere calcolate esattamente anche in regioni dello spazio dei parametri dove i canali non sono degradabili né antidegradabili.

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