Quanten-Dynamik topologisch nichttrivialer Systeme mit Coulomb-Blockade-Effekten
Zusammenfassung der Projektergebnisse
To sum up, the joint Russian-German grant has shown successful and efficient collaboration of two international groups. All the main goals of the project have been achieved. There have been investigated several new phenomena including: Overheating effects in single-electron turnstiles and superconducting qubits under the drive and tunable methods of evacuating nonequilibrium quasiparticles by introducing Abrikosov vortices into the sample; Fundamental limitations on the operation times of the Majorana bound states which are the inevitable elements of fault-tolerant quantum computing devices; Realization of the phase battery (phi-Josephson junction with the spontaneous nontrivial phase difference) in superconducting hybrid systems; Geometric effects of the curvature in the most perspective platform of the fault-tolerant quantum computing, namely, in the semiconducting nanowires with strong spin-orbit coupling with the induced superconductivity in the external magnetic field; Generation of new dynamical (Higgs) modes of the superconducting order parameter in the hybrid systems under the quench; Investigation of the thermal fluctuation and measurement back action in superconducting hybrid single-electron systems under the steady-state or time-dependent drive conditions. All of the above effects are relevant for and may find their applications in such fields as metrology, precise single-electron pumping, electronic cooling, Josephson nanoelectronics, and quantum computing (including fault-tolerant computations). Some of the above phenomena has already realized experimentally (also in the close collaboration with the project members).
Projektbezogene Publikationen (Auswahl)
- “Interplay of the inverse proximity effect and magnetic field in out-ofequilibrium single-electron devices”, Phys. Rev. Applied 7, 054021 (2017)
S. Nakamura, Y. A. Pashkin, M. Taupin, V. F. Maisi, I. M. Khaymovich, A. S. Mel’nikov, J. T. Peltonen, J. P. Pekola, Y. Okazaki, S. Kashiwaya, S. Kawabata, A. S. Vasenko, J.-S. Tsai, N.-H. Kaneko
(Siehe online unter https://doi.org/10.1103/physrevapplied.7.054021) - “Nonlocality and dynamic response of Majorana states in fermionic superfluids”, New J. Phys. 19, 123026 (2017)
I. M. Khaymovich, J. P. Pekola, A. S. Mel’nikov
(Siehe online unter https://doi.org/10.1088/1367-2630/aa983d) - “Inverse proximity effect in semiconductor Majorana nanowires”, Beilstein J. Nanotechnol., 9, 1184 (2018)
A. A. Kopasov, I. M. Khaymovich, A. S. Mel’nikov
(Siehe online unter https://doi.org/10.3762/bjnano.9.109) - “Electronic structure of mesoscopic superconducting disc: Quasiparticle tunneling between the giant vortex core and the disk edge”, Phys. Rev. B 99, 134512 (2019)
A. V. Samokhvalov, I. A. Shereshevskii, N. K. Vdovicheva, M. Taupin, I. M. Khaymovich, J. P. Pekola, A. S. Mel’nikov
(Siehe online unter https://doi.org/10.1103/physrevb.99.134512) - “Extreme reductions of entropy in an electronic double dot”, Phys. Rev. B 99, 115422 (2019)
S. Singh, É. Roldán, I. Neri, I. M. Khaymovich, D. S. Golubev, V. F. Maisi, J. T. Peltonen, F. Jülicher, J. P. Pekola
(Siehe online unter https://doi.org/10.1103/physrevb.99.115422) - “Higgs modes in superconducting systems with proximity effect”, Phys. Rev. B 100, 104515 (2019)
V. L. Vadimov, I. M. Khaymovich, and A. S. Mel’nikov
(Siehe online unter https://doi.org/10.1103/physrevb.100.104515) - “Thermodynamics in Single-Electron Circuits and Superconducting Qubits”, Annu. Rev. Condens. Matter Phys. 10, 193–212 (2019)
J. P. Pekola, I. M. Khaymovich
(Siehe online unter https://doi.org/10.1146/annurev-conmatphys-033117-054120) - “Time-reversal symmetric Crooks and Gallavotti-Cohen fluctuation relations in driven classical Markovian systems”, J. Stat. Mech. (2019) 054006
A. Mandaiya and I. M. Khaymovich
(Siehe online unter https://doi.org/10.1088/1742-5468/ab11c1) - “Universal First-Passage-Time Distribution of Non-Gaussian Currents”, Phys. Rev. Lett. 122, 230602 (2019)
S. Singh, P. Menczel, D. S. Golubev, I. M. Khaymovich, J. T. Peltonen, C. Flindt, K. Saito, É. Roldán, J. P. Pekola
(Siehe online unter https://doi.org/10.1103/physrevlett.122.230602)
