Российский Квантовый Центр Russian Quantum Center

Superconducting Quantum Circuits group / Группа Сверхпроводящие квантовые цепи

Group lead: Руководитель: Alexey Ustinov Алексей Устинов

Research Topics: Направления исследований:

  • Superconducting quantum circuits; Сверхпроводящие квантовые цепи;
  • Quantum metamaterials; Квантовые метаматериалы;
  • Quantum microwave photonics; Квантовые микроволны;
  • Hybrid quantum systems; Гибридные квантовые системы;
  • Close collaboration with ISSP RAS (Prof. Ryazanov) on Josephson π-junctions based on superconductor-ferromagnet technology, enabling both digital and quantum circuits; Тесное сотрудничество с ИФТТ РАН (проф. Рязанов) по джозефсоновским π-контактам, основанным на технологии сверпроводник-ферромагнетик;
  • Superconducting qubits and microwave circuits; Сверхпроводящие кубиты и микроволновые резонаторы;
  • Scalable quantum information circuit architectures. Масштабируемые архитектуры цепей для квантовых вычислений.

Members | Участники

  • Oleg Astafiev (Affiliated Faculty)
  • Evgeni Il'ichev (Affiliated Faculty)
  • Ivan Khrapach (Postdoctoral Fellow)
  • Vladimir Oboznov
  • Valery Ryazanov (Affiliated Faculty)
  • Vlad Shkolnikov (PhD Student)
  • Kirill Shulga (PhD Student)
  • Jean-Loup Smirr (Postdoctoral Fellow)
  • Nikolay Stepakov
  • Alexey Ustinov (Professor)

Publications | Публикации

Articles | Статьи

S. Butz, A.K. Feofanov, K.G. Fedorov, H. Rotzinger, A.U. Thomann, B. Mackrodt, R. Dolata, V.B. Geshkenbein, G. Blatter and A.V. Ustinov
Flux-dependent crossover between quantum and classical behavior in a dc SQUID
Physical Review Letters 113(24): 247005 (5 pp.), 11 Dec 2014.

P. Macha, G. Oelsner, J.M. Reiner, M. Marthaler, S. Andre, G. Schon, U. Hubner, H.G. Meyer, E. Il'ichev and A.V. Ustinov
Implementation of a quantum metamaterial using superconducting qubits
Nature Communications 5: 5146 (6 pp.), 14 Oct 2014. PDF.

A.S. Averkin, A. Karpov, K. Shulga, E. Glushkov, N. Abramov, U. Huebner, E. Il'ichev and A.V. Ustinov
Broadband sample holder for microwave spectroscopy of superconducting qubits
Review of Scientific Instruments 85: 104702 (5 pp.), 8 Oct 2014. PDF.

T.E. Golikova, M.J. Wolf, D. Beckmann, I.E. Batov, I.V. Bobkova, A.M. Bobkov and V.V. Ryazanov
Nonlocal supercurrent in mesoscopic multiterminal SNS Josephson junction in the low-temperature limit
Physical Review B - Condensed Matter and Materials Physics 89(10): 104507 (6 pp.), 7 Aug 2014.

P. Jung, A.V. Ustinov and S.M. Anlage
Progress in superconducting metamaterials
Superconductor Science and Technology 27: 073001 (13 pp.), 28 May 2014. PDF.

A.V. Shcherbakova, K.G. Fedorov, K. Shulga, V.V. Ryazanov, V.V. Bolginov, V.A. Oboznov, S.V. Egorov, V.O. Shkolnikov, M.J. Wolf, D. Beckmann and A.V. Ustinov
Fabrication and measurements of hybrid Nb/Al Josephson junctions and ux qubits with pi-shifters
arXiv.org:1405.0373, 2 May 2014.

K.G. Fedorov, A.V. Shcherbakova, M.J. Wolf, D. Beckmann and A.V. Ustinov
Fluxon Readout of a Superconducting Qubit
Physical Review Letters 112: 160502 (5 pp.), 25 Apr 2014. PDF.

S. Butz, A.K. Feofanov, K.G. Fedorov, H. Rotzinger, A.U. Thomann, B. Mackrodt, R. Dolata, V.B. Geshkenbein, G. Blatter and A.V. Ustinov
Flux Dependent Crossover Between Quantum and Classical Behavior in a dc-SQUID
arXiv.org:1404.3602, 15 Apr 2014.

J. Zimmer, V. Vogt, A. Fiebig, S.V. Syzranov, A. Lukashenko, R. Schafer, H. Rotzinger, A. Shnirman, M. Marthaler and A.V. Ustinov
Thermally activated conductance in arrays of small Josephson junctions
Physical Review B 88: 144506, 27 Jun 2013. PDF.

K.G. Fedorov, A.V. Shcherbakova, R. Schafer and A.V. Ustinov
Josephson vortex coupled to a flux qubit
Applied Physics Letters 102: 132602 (4 pp.), 3 Apr 2013. PDF.



Lecture Courses | Курсы лекций