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20032011
most citedObservation of an anomalous positron abundance in the cosmic radiation

2.2k citations

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5 papers · 1 filter

cond-mat.supr-con200558 cited

Direct Josephson coupling between superconducting flux qubits

M. Grajcar, A. Izmalkov, S. H. W. van der Ploeg +8

We have demonstrated strong antiferromagnetic coupling between two three-junction flux qubits based on a shared Josephson junction, and therefore not limited by the small inductanc…

cond-mat.supr-con200479 cited

Avalanche-driven fractal flux distributions in NbN superconducting films

I. A. Rudnev, D. V. Shantsev, T. H. Johansen +1

Flux distributions in thin superconducting NbN films placed in a perpendicular magnetic field have been studied using magneto-optical imaging. Below 5.5 K the flux penetrates in th…

cond-mat.supr-con200448 cited

Possible implementation of adiabatic quantum algorithm with superconducting flux qubits

M. Grajcar, A. Izmalkov, E. Il'ichev

We show that an LC parametric transducer can be effectively used to monitor an adiabatic evolution of the superconducting flux qubit. We propose a new scheme to measure the qubit's…

cond-mat.supr-con200366 cited

Observation of macroscopic Landau-Zener transitions in a superconducting device

A. Izmalkov, M. Grajcar, E. Il'ichev +7

A two-level system traversing a level anticrossing has a small probability to make a so-called Landau-Zener (LZ) transition between its energy bands, in deviation from simple adiab…

cond-mat.supr-con200370 cited

Low-frequency measurement of the tunneling amplitude in a flux qubit

M. Grajcar, A. Izmalkov, E. Il'ichev +13

We have observed signatures of resonant tunneling in an Al three-junction qubit, inductively coupled to a Nb LC tank circuit. The resonant properties of the tank oscillator are sen…