Spontaneous currents in Josephson junctions between unconventional superconductors and d-wave qubits (Review Article)
The modern physics of superconductivity can be called the physics of unconventional superconductivity. The discovery of the d-wave symmetry of the order parameter in high-temperature superconductors and the triplet superconductivity in compound Sr₂RuO₄ has caused a huge stream of theoretical and...
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| Дата: | 2004 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2004
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| Назва видання: | Физика низких температур |
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| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/119829 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Spontaneous currents in Josephson junctions between unconventional superconductors and d-wave qubits (Review Article) / Yu.A. Kolesnichenko, A.N. Omelyanchouk, A.M. Zagoskin // Физика низких температур. — 2004. — Т. 30, № 7-8. — С. 714-737. — Бібліогр.: 125 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
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irk-123456789-1198292017-06-11T03:03:33Z Spontaneous currents in Josephson junctions between unconventional superconductors and d-wave qubits (Review Article) Kolesnichenko, Yu.A. Omelyanchouk, A.N. Zagoskin, A.M. Сверхпроводимость и мезоскопические структуры The modern physics of superconductivity can be called the physics of unconventional superconductivity. The discovery of the d-wave symmetry of the order parameter in high-temperature superconductors and the triplet superconductivity in compound Sr₂RuO₄ has caused a huge stream of theoretical and experimental investigations of unconventional superconductors. In this review we discuss novel aspects of Josephson effect related to the symmetry of the order parameter. The most intriguing of them is spontaneous current generation in an unconventional weak link. The example of a Josephson junction as a grain boundary between two disorientated d-wave or f-wave superconductors, is considered in detail. Josephson current–phase relations and the phase dependences of the spontaneous current, that flows along the interface are analyzed. The spontaneous current and spontaneous phase difference are manifestations of the time-reversal symmetry (T ) breaking states in the system. We analyzed the region of appearance of T -breaking states as function of temperature and mismatch angle. A review of the basics of superconducting qubits with emphasis on specific properties of d-wave qubits is given. Recent results in the problem of decoherence in d-wave qubits, which is the major concern for any qubit realization, are presented. 2004 Article Spontaneous currents in Josephson junctions between unconventional superconductors and d-wave qubits (Review Article) / Yu.A. Kolesnichenko, A.N. Omelyanchouk, A.M. Zagoskin // Физика низких температур. — 2004. — Т. 30, № 7-8. — С. 714-737. — Бібліогр.: 125 назв. — англ. 0132-6414 PACS: 74.50.+r, 74.72.–h, 74.70.Pq, 74.70.Tx, 85.25.–j http://dspace.nbuv.gov.ua/handle/123456789/119829 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
Сверхпроводимость и мезоскопические структуры Сверхпроводимость и мезоскопические структуры |
| spellingShingle |
Сверхпроводимость и мезоскопические структуры Сверхпроводимость и мезоскопические структуры Kolesnichenko, Yu.A. Omelyanchouk, A.N. Zagoskin, A.M. Spontaneous currents in Josephson junctions between unconventional superconductors and d-wave qubits (Review Article) Физика низких температур |
| description |
The modern physics of superconductivity can be called the physics of unconventional superconductivity.
The discovery of the d-wave symmetry of the order parameter in high-temperature superconductors
and the triplet superconductivity in compound Sr₂RuO₄ has caused a huge stream of
theoretical and experimental investigations of unconventional superconductors. In this review we
discuss novel aspects of Josephson effect related to the symmetry of the order parameter. The most
intriguing of them is spontaneous current generation in an unconventional weak link. The example
of a Josephson junction as a grain boundary between two disorientated d-wave or f-wave superconductors,
is considered in detail. Josephson current–phase relations and the phase dependences of
the spontaneous current, that flows along the interface are analyzed. The spontaneous current and
spontaneous phase difference are manifestations of the time-reversal symmetry (T ) breaking states
in the system. We analyzed the region of appearance of T -breaking states as function of temperature
and mismatch angle. A review of the basics of superconducting qubits with emphasis on specific
properties of d-wave qubits is given. Recent results in the problem of decoherence in d-wave
qubits, which is the major concern for any qubit realization, are presented. |
| format |
Article |
| author |
Kolesnichenko, Yu.A. Omelyanchouk, A.N. Zagoskin, A.M. |
| author_facet |
Kolesnichenko, Yu.A. Omelyanchouk, A.N. Zagoskin, A.M. |
| author_sort |
Kolesnichenko, Yu.A. |
| title |
Spontaneous currents in Josephson junctions between unconventional superconductors and d-wave qubits (Review Article) |
| title_short |
Spontaneous currents in Josephson junctions between unconventional superconductors and d-wave qubits (Review Article) |
| title_full |
Spontaneous currents in Josephson junctions between unconventional superconductors and d-wave qubits (Review Article) |
| title_fullStr |
Spontaneous currents in Josephson junctions between unconventional superconductors and d-wave qubits (Review Article) |
| title_full_unstemmed |
Spontaneous currents in Josephson junctions between unconventional superconductors and d-wave qubits (Review Article) |
| title_sort |
spontaneous currents in josephson junctions between unconventional superconductors and d-wave qubits (review article) |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
2004 |
| topic_facet |
Сверхпроводимость и мезоскопические структуры |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/119829 |
| citation_txt |
Spontaneous currents in Josephson junctions between unconventional superconductors and d-wave qubits (Review Article) / Yu.A. Kolesnichenko, A.N. Omelyanchouk, A.M. Zagoskin // Физика низких температур. — 2004. — Т. 30, № 7-8. — С. 714-737. — Бібліогр.: 125 назв. — англ. |
| series |
Физика низких температур |
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| first_indexed |
2023-10-18T20:35:31Z |
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2023-10-18T20:35:31Z |
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1796150601863659520 |