• Development of superconducting structures with unique electromagnetic characteristics and the study of their physical properties...

Russia’s first superconducting qubit

Scientists from leading universities and scientific centers actually created the first in Russia superconducting qubit necessary for the quantum computer creation. A group of researchers led by Oleg Astafiev (MIPT), Alexey Ustinov  and Valery Ryazanov  worked on this project. Alexey Ustinov shared his comments on this outstanding invention.

First steps towards qubit creation were made two years ago in 2013, when researchers from the Laboratory of Superconductive Materials, NUST «МISiS» together with the Russian Quantum Center led by Alexey Ustinov measured the qubit for the first time. However, the qubit under investigation was manufactured in Germany by the group of researchers led by prof. Eugeny Iliechev whose new laboratory in currently under construction in Novosibirsk. Creation of the Russian know-how for the superconducting qubit manufacturing was quite effort consuming.

The process of qubit measuring meant its penetration by microwave radiation with a subsequent measuring of such radiation phase shift. The measurements proved that the obtained system was indeed a qubit with two fundamental states. Qubit’s principal property to acquire two-state superposition simultaneously was also demonstrated.

Creation of the superconducting qubit know-how by 2015 required more resources both human and technological hence almost every R&D center in Russia competent in the field of superconducting quantum devices participated in this scientific experiment.

Prof. Alexey Ustinov, Head of the Laboratory for Superconductive Materials, NUST «МISiS», professor at Karlsruhe Institute of Technology shared the following comments on this outstanding experiment for the Russian science:
«Now it is obvious that critical mass has accumulated in Russia, i.e. scientific centers, equipment, know-how, researchers and developments; this is the foundation for the competition with the leading world research centers including the field of quantum computer creation. No doubt, NUST «МISiS» is a prominent member of this scientific community – so far there are only four labs in Russia capable to conduct experiments involving qubits, and our research team is among the best».

According to Alexey Ustinov, «Quantum computer will allow deciphering any messages coded by modern cryptographic algorithms. Its creation will lead to vast changes in data security systems. Besides, quantum computers will allow using principally new information technology systems responsible for the data quantum processing. Quantum computing devices will provide for a broad spectrum of solutions, for instance synthesis of materials with desired properties, complex image sorting, optimization and recognition problems, and quantum system modeling as such. The majority of such problems has no solution using common classic computers».

Alexey Ustinov in the Laboratory for superconducting metamaterials

Alexey Ustinov in the Laboratory for superconducting metamaterials

Schmidt seminar on superconductivity

Laboratory for superconducting metamaterials organises the series of Schmidt seminars on superconductivity with invited famous scientists with original reports on superconductivity.

The seminar is named after Vadim V. Schmidt.

V.V. Schmidt (1927-1985) – an outstanding Russian (Soviet) scientist, professor of MISIS, the organizer and head (in 1978-1985.) of the Laboratory of Superconductivity at the Institute of Solid

Vadim V. Schmidt

Vadim V. Schmidt

State Physics RAS, the author of one of the most popular textbooks on superconductivity. This remarkable book “Introduction to the physics of superconductors”, endured for two editions, based on a course of lectures, which Vadim V. for a number of years (30 years ago) read at the Moscow Institute of Steel and Alloys. V.V. Schmidt is one of the founders of the theory of fluctuations in low-dimensional superconductors, the author of several models of pinning of Abrikosov vortices and thermoelectric phenomena in superconducting systems. Interest in this area is related to the close interaction between Vadim V. Schmidt and Vitaly L. Ginzburg with his theoretical division at P.N. Lebedev Physical Institute of the Russian Academy of Sciences. Vadim V. was a permanent member of the famous ” Ginzburg workshops” held on Wednesdays in the LPI. It is the format of the workshop, as well as “Schmidt Monday” in Chernogolovka, we would like to replicate in organized “Schmidt seminar on superconductivity.” The venue is NUST “MISIS”, is known for its tradition in the study of superconductivity in connection with the work of the Department of Theoretical Physics, which was headed by Alexei Abrikosov in 1976-1991 gg., got in 2003 the Nobel Prize in Physics together with Vitaly L. Ginzburg for pioneering work in the theory of superconductors.

The organizers of the seminar, students of V.V. Schmidt:

Golubov A.A., Professor of Moscow Institute of Physics and Technology and University of Twente (Netherlands), a graduate of MISIS.

Ryazanov V.V., Professor of Moscow Institute of Physics and Technology, chief researcher of the lab in MISIS, Head of the Laboratory of superconductivity in the Institute of Solid State Physics RAS in Chernogolovka.

Ustinov A.V., Professor of Karlsruhe Institute of Technology (Germany), Head of the Laboratory of superconducting metamaterials NUST “MISIS”.

Last Schmidt seminars on superconductivity

Date Title Speaker
1 November 13, 2014 Superconducting detectors Prof. Dr. Il’ichev Evgeny V. ( Institute of Photonic technology, Jena, Germany)
2 November 27, 2014 Phase-sensitive experiments for determination of the symmetry of the superconducting order parameter in superconducting ferro-pnictides Prof. Dr. A. A. Golubov (University of Twente, the Netherlands; Moscow Institute of Physics and Technology, Russia;  MISIS graduate)
3 December 11, 2014 Cold-Electron Bolometer: Physics and Applications Prof. Dr. Leonid S. Kuzmin (Chalmers University of Technology, Sweden; NSTU, N. Novgorod; SINP, MSU, Moscow)
4 December 25, 2014 Quantum tunneling and thermal activation in SQUID Prof. Dr. Alexey Ustinov (Karlsruhe Institute of Technology, Germany; Head of the laboratory for superconducting metamaterials, NUST “MISiS”, Russia)
5 January 29, 2015 Superconducting spin valves Prof. Dr. Mikhail Yur’evich Kupriyanov (Lomonosov Moscow State University)
6 February 12, 2015 Cold-Electron Bolometer: Physics and Applications Prof. Dr. Sergey V. Shitov (Institute of Radio Engineering and Electronics, Russian Academy of Sciences – IREE RAS, Moscow, Russia; NUST MISiS, Moscow, Russia)
7 February 26, 2015 Study of THz emission spectra Bi2Sr2CaCu2O8 mesa structures using superconducting integrated receiver Prof. Dr. Valery Koshelets  (Institute of Radio Engineering and Electronics, Russian Academy of Sciences – IREE RAS, Moscow, Russia)
8 March 26, 2015 Superconducting quantum metamaterials Prof. Dr. Mikhail Fistul (Ruhr University, Bochum, Germany)
9 April 09, 2015 Vortex states in multiply connected superconductors and hybrid structures Prof. Dr. Alexey Samohvalov (The Institute for Physics of Microstructures of the Russian Academy of Sciences IPM RAS, Nizhny Novgorod, Russia)
10 April 23, 2015 Magnetometer systems based on SQUIDs for biomedical applications Prof. Dr. Yuri Maslennikov (Institute of Radio Engineering and Electronics, Russian Academy of Sciences – IREE RAS, Moscow, Russia; Research and Production Association “Cryoton”)
11 May 21, 2015 Volt-streaming conversion Josephson structures based on superconducting quantum interferometers Prof. Dr. Nikolay V. Klenov, (Faculty of Physics, Lomonosov Moscow State University)
12 June 21, 2015 Superconducting computer: status and prospects Prof. Dr. Alexander Kirichenko (HYPRES, USA)
13 July 2, 2015 Dynamical Lamb Effect in a coupled system of superconducting qubit and microwave resonator Prof. Dr. Walter Pogosov (All-Russia Research Institute of Automatics VNIIA)
14 July 16, 2015 Superconducting Hybrid Quantum Systems Prof. Dr. Rudolf Gross (Walther-Meissner-Institut, Technische Universität München, Germany)
15 July 23, 2015 Superconducting Nanowire Single-Photon and THz Detectors Prof. Dr. Michael Siegel (Karlsruhe Institute of Technology, Germany)
16  November 26, 2015 Odd-frequency pairing and Andreev bound states Prof. Dr. Yukio Tanaka (Nagoya University, Japan)
17 December 17, 2015 Probing contextuality with superconducting quantum circuits Prof. Dr. Arkady Fedorov (The University of Queensland, Australia)
18 April 7, 2016 Quantum coherence in a qubit chain induced by self-induced transparent electromagnetic pulses Prof. Dr. Nikolaos Lazaridis (Crete University, Greece)
19 November 15, 2018 Magnetic-field-induced parity effect in insulating Josephson junction chains Prof. Timothy Duty (University of New South Wales, Australia)
20 December 13, 2018 Electromagnetic Aharonov-Bohm like proximity effect in planar superconductor-ferromagnet structures Prof. Dr. A. Buzdin (University Bordeaux, France)
21 June 5, 2019 Chirality-controlled spontaneous currents in spin-orbit coupled superconducting rings Prof. Dr. A. Buzdin (University Bordeaux, France)
22 June 19, 2019 Nonequilibrium superconductivity with spin-splitting fields: spin transport and thermoelectric effects
Prof. Dr. Mikhail Silaev (University of Jyväskylä, Finland)