Low-frequency Landau–Zener–Stückelberg interference in dissipative superconducting qubits
Landau–Zener–Stückelberg (LZS) interference of continuously driven superconducting qubits is studied. Going beyond the second order perturbation expansion, we find a time dependent stationary population evolution as well as unsymmetrical microwave driven Landau–Zener transitions, resulting from the...
Gespeichert in:
| Veröffentlicht in: | Физика низких температур |
|---|---|
| Datum: | 2013 |
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | Englisch |
| Veröffentlicht: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2013
|
| Schlagworte: | |
| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/118651 |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Low-frequency Landau–Zener–Stückelberg interference in dissipative superconducting qubits / Lingjie Du, Dong Lan, Yang Yu // Физика низких температур. — 2013. — Т. 39, № 8. — С. 863–878. — Бібліогр.: 52 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1859484224146374656 |
|---|---|
| author | Du, Lingjie Lan, Dong Yu, Yang |
| author_facet | Du, Lingjie Lan, Dong Yu, Yang |
| citation_txt | Low-frequency Landau–Zener–Stückelberg interference in dissipative superconducting qubits / Lingjie Du, Dong Lan, Yang Yu // Физика низких температур. — 2013. — Т. 39, № 8. — С. 863–878. — Бібліогр.: 52 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | Landau–Zener–Stückelberg (LZS) interference of continuously driven superconducting qubits is studied. Going beyond the second order perturbation expansion, we find a time dependent stationary population evolution as well as unsymmetrical microwave driven Landau–Zener transitions, resulting from the nonresonant terms which are neglected in rotating-wave approximation. For the low-frequency driving, the qubit population at equi-librium is a periodical function of time, owing to the contribution of the nonresonant terms. In order to obtain the average population, it is found that the average approximation based on the perturbation approach can be applied to the low-frequency region. For the extremely low frequency which is much smaller than the decoherence rate, we develop noncoherence approximation by dividing the evolution into discrete time steps during which the co-herence is lost totally. These approximations present comprehensive analytical descriptions of LZS interference in most of parameter space of frequency and decoherence rate, agreeing well with those of the numerical simula-tions and providing a simple but integrated understanding to system dynamics. The application of our models to microwave cooling can obtain the minimal frequency to realize effective microwave cooling.
|
| first_indexed | 2025-11-24T15:47:00Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-118651 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-11-24T15:47:00Z |
| publishDate | 2013 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Du, Lingjie Lan, Dong Yu, Yang 2017-05-30T18:34:46Z 2017-05-30T18:34:46Z 2013 Low-frequency Landau–Zener–Stückelberg interference in dissipative superconducting qubits / Lingjie Du, Dong Lan, Yang Yu // Физика низких температур. — 2013. — Т. 39, № 8. — С. 863–878. — Бібліогр.: 52 назв. — англ. 0132-6414 PACS: 03.65.Yz, 85.25.Dq, 85.25.Cp, 03.67.–a https://nasplib.isofts.kiev.ua/handle/123456789/118651 Landau–Zener–Stückelberg (LZS) interference of continuously driven superconducting qubits is studied. Going beyond the second order perturbation expansion, we find a time dependent stationary population evolution as well as unsymmetrical microwave driven Landau–Zener transitions, resulting from the nonresonant terms which are neglected in rotating-wave approximation. For the low-frequency driving, the qubit population at equi-librium is a periodical function of time, owing to the contribution of the nonresonant terms. In order to obtain the average population, it is found that the average approximation based on the perturbation approach can be applied to the low-frequency region. For the extremely low frequency which is much smaller than the decoherence rate, we develop noncoherence approximation by dividing the evolution into discrete time steps during which the co-herence is lost totally. These approximations present comprehensive analytical descriptions of LZS interference in most of parameter space of frequency and decoherence rate, agreeing well with those of the numerical simula-tions and providing a simple but integrated understanding to system dynamics. The application of our models to microwave cooling can obtain the minimal frequency to realize effective microwave cooling. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Сверхпроводимость, в том числе высокотемпературная Low-frequency Landau–Zener–Stückelberg interference in dissipative superconducting qubits Article published earlier |
| spellingShingle | Low-frequency Landau–Zener–Stückelberg interference in dissipative superconducting qubits Du, Lingjie Lan, Dong Yu, Yang Сверхпроводимость, в том числе высокотемпературная |
| title | Low-frequency Landau–Zener–Stückelberg interference in dissipative superconducting qubits |
| title_full | Low-frequency Landau–Zener–Stückelberg interference in dissipative superconducting qubits |
| title_fullStr | Low-frequency Landau–Zener–Stückelberg interference in dissipative superconducting qubits |
| title_full_unstemmed | Low-frequency Landau–Zener–Stückelberg interference in dissipative superconducting qubits |
| title_short | Low-frequency Landau–Zener–Stückelberg interference in dissipative superconducting qubits |
| title_sort | low-frequency landau–zener–stückelberg interference in dissipative superconducting qubits |
| topic | Сверхпроводимость, в том числе высокотемпературная |
| topic_facet | Сверхпроводимость, в том числе высокотемпературная |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/118651 |
| work_keys_str_mv | AT dulingjie lowfrequencylandauzenerstuckelberginterferenceindissipativesuperconductingqubits AT landong lowfrequencylandauzenerstuckelberginterferenceindissipativesuperconductingqubits AT yuyang lowfrequencylandauzenerstuckelberginterferenceindissipativesuperconductingqubits |