184 citations · 1.9k across the 40 of their papers we have counts for
6 papers · 1 filter
Non-Gaussian low-frequency noise as a source of qubit decoherence
Y. M. Galperin, B. L. Altshuler, J. Bergli +1
We study decoherence in a qubit with the distance between the two levels affected by random flips of bistable fluctuators. For the case of a single fluctuator we evaluate explicitl…
Magneto-optical imaging of magnetic flux patterns in superconducting films with antidots
V. V. Yurchenko, R. Woerdenweber, Yu. M. Galperin +3
Superconducting YBaCuO thin films were equipped with a special arrangement of antidots (holes) of 1 micron radius in order to guide the stream of magnetic flux moving in (or out of…
Dendritic and uniform flux jumps in superconducting films
D. V. Denisov, A. L. Rakhmanov, D. V. Shantsev +2
Recent theoretical analysis of spatially-nonuniform modes of the thermomagnetic instability in superconductors [Phys. Rev. B 70, 224502 (2004)] is generalized to the case of a thin…
Size of flux jumps in superconducting films
D. V. Shantsev, A. V. Bobyl, Y. M. Galperin +2
Magneto-optical imaging is used to visualize vortex avalanches in MgB2 films at 4K. Avalanches ranging from 50 to 50000 vortices were detected. The size distribution function has a…
The Dendritic magnetic avalanches in carbon-free MgB thin films with and without a deposited Au layer
Eun-Mi Choi, Hyun-Sook Lee, Hyun Jung Kim +5
From the magneto optics images (MOI), the dendritic magnetic avalanche is known to appear dominantly for thin films of the newly discovered MgB. To clarify the origin of this p…
Rabi oscillations of a qubit coupled to a two-level system
Y. M. Galperin, D. V. Shantsev, J. Bergli +1
The problem of Rabi oscillations in a qubit coupled to a fluctuator and in contact with a heath bath is considered. A scheme is developed for taking into account both phase and ene…