Rezonáns többszintű amplitúdó csillapító csatornák

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Resonant Multilevel Amplitude Damping Channels PlatoBlockchain Data Intelligence. Vertical Search. Ai.

Stefano Chessa^1,2 és a Vittorio Giovannetti¹

¹NEST, Scuola Normale Superiore és Istituto Nanoscienze-CNR, I-56126 Pisa, Olaszország
²Elektromos és számítástechnikai mérnök, Illinoisi Egyetem Urbana-Champaign, Urbana, Illinois, 61801, USA

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Absztrakt

We introduce a new set of quantum channels: resonant multilevel amplitude damping (ReMAD) channels. Among other instances, they can describe energy dissipation effects in multilevel atomic systems induced by the interaction with a zero-temperature bosonic environment. At variance with the already known class of multilevel amplitude damping (MAD) channels, this new class of maps allows the presence of an environment unable to discriminate transitions with identical energy gaps. After characterizing the algebra of their composition rules, by analyzing the qutrit case, we show that this new set of channels can exhibit degradability and antidegradability in vast regions of the allowed parameter space. There we compute their quantum capacity and private classical capacity. We show that these capacities can be computed exactly also in regions of the parameter space where the channels aren’t degradable nor antidegradable.

► BibTeX adatok

@article{Chessa2023resonantmultilevel, doi = {10.22331/q-2023-01-19-902}, url = {https://doi.org/10.22331/q-2023-01-19-902}, title = {Resonant {M}ultilevel {A}mplitude {D}amping {C}hannels}, author = {Chessa, Stefano and Giovannetti, Vittorio}, journal = {{Quantum}}, issn = {2521-327X}, publisher = {{Verein zur F{“{o}}rderung des Open Access Publizierens in den Quantenwissenschaften}}, volume = {7}, pages = {902}, month = jan, year = {2023}<br /> }

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Idézi

Nem sikerült lekérni Az adatok által hivatkozott kereszthivatkozás utolsó próbálkozáskor 2023-01-19 14:14:17: Nem sikerült lekérni a 10.22331/q-2023-01-19-902 hivatkozás által hivatkozott adatokat a Crossref-től. Ez normális, ha a DOI-t nemrég regisztrálták. Tovább SAO/NASA HIRDETÉSEK művekre hivatkozó adat nem található (utolsó próbálkozás 2023-01-19 14:14:18).

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