Zobrazeno 1 - 10
of 678
pro vyhledávání: '"Wagner, TH"'
Autor:
Golod, T., Rydh, A., Krasnov, V. M., Marozau, I., Uribe-Laverde, M. A., Satapathy, D. K., Wagner, Th., Bernhard, C.
Publikováno v:
Phys. Rev. B 87, 134520 (2013)
We study the perpendicular transport characteristics of small superconductor/ferromagnetic insulator/superconductor (YBa$_2$Cu$_3$O$_{7-x}$/LaMnO$_{3+\delta}$/YBa$_2$Cu$_3$O$_{7-x}$) tunnel junctions. At a large bias voltage $V\sim 1$ V we observe a
Externí odkaz:
http://arxiv.org/abs/1206.2053
Autor:
Satapathy, D. K., Uribe-Laverde, M. A., Marozau, I., Malik, V. K., Das, S., Wagner, Th., Marcelot, C., Stahn, J., Brück, S., Rühm, A., Macke, S., Tietze, T., Goering, E., Frañó, A., Kim, J. -H., Wu, M., Benckiser, E., Keimer, B., Devishvili, A., Toperverg, B. P., Merz, M., Nagel, P., Schuppler, S., Bernhard, C.
Publikováno v:
Phys. Rev. Lett. 108, 197201 (2012)
Using neutron reflectometry and resonant x-ray techniques we studied the magnetic proximity effect (MPE) in superlattices composed of superconducting YBa$_2$Cu$_3$O$_7$ (YBCO) and ferromagnetic-metallic (FM-M) La$_{0.67}$Ca$_{0.33}$MnO$_{3}$ (LCMO) o
Externí odkaz:
http://arxiv.org/abs/1111.5772
Autor:
van der Ploeg, S. H. W., Izmalkov, A., Grajcar, M., Huebner, U., Linzen, S., Uchaikin, S., Wagner, Th., Smirnov, A. Yu., Brink, A. Maassen van den, Amin, M. H. S., Zagoskin, A. M., Il'ichev, E., Meyer, H. -G.
Controllable adiabatic evolution of a multi-qubit system can be used for adiabatic quantum computation (AQC). This evolution ends at a configuration where the Hamiltonian of the system encodes the solution of the problem to be solved. As a first step
Externí odkaz:
http://arxiv.org/abs/cond-mat/0702580
Autor:
Grajcar, M., Izmalkov, A., van der Ploeg, S. H. W., Linzen, S., Plecenik, T., Wagner, Th., Huebner, U., Il'ichev, E., Meyer, H. -G., Smirnov, A. Yu., Love, Peter J., Brink, Alec Maassen van den, Amin, M. H. S., Uchaikin, S., Zagoskin, A. M.
Publikováno v:
Phys. Rev. Lett._96_, 047006 (2006)
We present the first experimental results on a device with more than two superconducting qubits. The circuit consists of four three-junction flux qubits, with simultaneous ferro- and antiferromagnetic coupling implemented using shared Josephson junct
Externí odkaz:
http://arxiv.org/abs/cond-mat/0509557
Autor:
Shnyrkov, V. I., Wagner, Th., Born, D., Shevchenko, S. N., Krech, W., Omelyanchouk, A. N., Il'ichev, E., Meyer, H. -G.
Publikováno v:
Phys. Rev. B 73, 024506 (2006)
We investigated both theoretically and experimentally dynamic features of a phase-biased charge qubit consisting of a single-Cooper-pair transistor closed by a superconducting loop. The effective inductance of the qubit was probed by a high-quality t
Externí odkaz:
http://arxiv.org/abs/cond-mat/0507583
Autor:
Grajcar, M., Izmalkov, A., van der Ploeg, S. H. W., Linzen, S., Il'ichev, E., Wagner, Th., Hubner, U., Meyer, H. -G., Brink, Alec Maassen van den, Uchaikin, S., Zagoskin, A. M.
Publikováno v:
Phys. Rev. B 72, 020503(R) (2005)
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 inductances of the qubit loops. The coupling sign and magnitude were measured b
Externí odkaz:
http://arxiv.org/abs/cond-mat/0501085
Autor:
Il'ichev, E., Smirnov, A. Yu., Grajcar, M., Izmalkov, A., Born, D., Oukhanski, N., Wagner, Th., Krech, W., Meyer, H. -G., Zagoskin, A. M.
Publikováno v:
Fizika Nizkikh Temperatur 30, 823 (2004)
We implement the impedance measurement technique (IMT) for characterization of interferometer-type superconducting qubits. In the framework of this method, the interferometer loop is inductively coupled to a high-quality tank circuit. We show that th
Externí odkaz:
http://arxiv.org/abs/cond-mat/0402559
Autor:
Born, D., Shnyrkov, V. I., Krech, W., Wagner, Th., Il'ichev, E., Grajcar, M., Huebner, U., Meyer, H. -G.
Publikováno v:
Phys. Rev. B 70, 180501 (2004)
We implemented experimentally an interferometer-type charge qubit consisting of a single-Cooper-pair transistor closed by a superconducting loop that is in flip-chip configuration inductively coupled to a radio frequency tank circuit. The tank permit
Externí odkaz:
http://arxiv.org/abs/cond-mat/0312696
Autor:
Izmalkov, A., Grajcar, M., Il'ichev, E., Wagner, Th., Meyer, H. -G., Smirnov, A. Yu., Amin, M. H. S., Brink, Alec Maassen van den, Zagoskin, A. M.
Publikováno v:
Phys. Rev. Lett. 93, 037003 (2004)
We have studied the low-frequency magnetic susceptibility of two inductively coupled flux qubits using the impedance measurement technique (IMT), through their influence on the resonant properties of a weakly coupled high-quality tank circuit. In a s
Externí odkaz:
http://arxiv.org/abs/cond-mat/0312332
Autor:
Izmalkov, A., Grajcar, M., Il'ichev, E., Oukhanski, N., Wagner, Th., Meyer, H. -G., Krech, W., Amin, M. H. S., Brink, Alec Maassen van den, Zagoskin, A. M.
Publikováno v:
Europhys. Lett. 65, 844 (2004)
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 adiabatic evolution. This effect takes on renewed relevance due to the obse
Externí odkaz:
http://arxiv.org/abs/cond-mat/0307506