Zobrazeno 1 - 10
of 154
pro vyhledávání: '"Rotzinger H"'
Autor:
Kämmerer, J. N., Masis, S., Hambardzumyan, K., Lenhard, P., Strobel, U., Lisenfeld, J., Rotzinger, H., Ustinov, A. V.
The microwave-driven dynamics of the superconducting phase difference across a Josephson junction is now widely employed in superconducting qubits and quantum circuits. With the typical energy level separation frequency of several GHz, cooling these
Externí odkaz:
http://arxiv.org/abs/2411.15048
Autor:
Bartolo, T. C., Smith, J. S., Schön, Yannick, Voss, Jan Nicolas, Cyster, M. J., Ustinov, A. V., Rotzinger, H., Cole, J. H.
Granular aluminium is a high kinetic inductance thin film superconductor which, when formed into nanowires can undergo an intrinsic electromigration process. We use a combination of experimental and computational approaches to investigate the role of
Externí odkaz:
http://arxiv.org/abs/2111.12910
Autor:
Maleeva, N., Grünhaupt, L., Klein, T., Levy-Bertrand, F., Dupré, O., Calvo, M., Valenti, F., Winkel, P., Friedrich, F., Wernsdorfer, W., Ustinov, A. V., Rotzinger, H., Monfardini, A., Fistul, M. V., Pop, I. M.
Publikováno v:
Nature Communicationsvolume 9, 3889 (2018)
The introduction of crystalline defects or dopants can give rise to so-called "dirty superconductors", characterized by reduced coherence length and quasiparticle mean free path. In particular, granular superconductors such as Granular Aluminum (GrAl
Externí odkaz:
http://arxiv.org/abs/1802.01859
Akademický článek
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Publikováno v:
Phys. Rev. B 92, 014421 (2015)
Interfacing photonic and solid-state qubits within a hybrid quantum architecture offers a promising route towards large scale distributed quantum computing. In that respect, hybrid quantum systems combining circuit QED with ions doped into solids are
Externí odkaz:
http://arxiv.org/abs/1501.01499
Autor:
Probst, S., Kukharchyk, N., Rotzinger, H., Tkalcec, A., Wünsch, S., Wieck, A. D., Siegel, M., Ustinov, A. V., Bushev, P. A.
Publikováno v:
Appl. Phys. Lett. 105, 162404 (2014)
We report on hybrid circuit QED experiments with focused ion beam implanted Er$^{3+}$ ions in Y$_2$SiO$_5$ coupled to an array of superconducting lumped element microwave resonators. The Y$_2$SiO$_5$ crystal is divided into several areas with distinc
Externí odkaz:
http://arxiv.org/abs/1409.7667
Autor:
Rotzinger, H., Skacel, S. T., Pfirrmann, M., Voss, J. N., Münzberg, J., Probst, S., Bushev, P., Weides, M. P., Ustinov, A. V., Mooij, J. E.
We investigate thin films of conducting aluminium-oxide, also known as granular aluminium, as a material for superconducting high quality, high kinetic inductance circuits. The films are deposited by an optimised reactive DC magnetron sputter process
Externí odkaz:
http://arxiv.org/abs/1408.4347
Autor:
Skacel, S. T., Kaiser, Ch., Wuensch, S., Rotzinger, H., Lukashenko, A., Jerger, M., Weiss, G., Siegel, M., Ustinov, A. V.
We have investigated dielectric losses in amorphous SiO thin films under operating conditions of superconducting qubits (mK temperatures and low microwave powers). For this purpose, we have developed a broadband measurement setup employing multiplexe
Externí odkaz:
http://arxiv.org/abs/1407.0985
Autor:
Probst, S., Tkalcec, A., Rotzinger, H., Rieger, D., Floch, J-M. Le, Goryachev, M., Tobar, M. E., Ustinov, A. V., Bushev, P. A.
Publikováno v:
Phys. Rev. B 90, 100404 (R) (2014)
We present cavity QED experiments with an Er:YSO crystal magnetically coupled to a 3D cylindrical sapphire loaded copper resonator. Such waveguide cavities are promising for the realization of a superconducting quantum processor. Here, we demonstrate
Externí odkaz:
http://arxiv.org/abs/1406.3535
Autor:
Tkalcec, A., Probst, S., Rieger, D., Rotzinger, H., Wünsch, S., Kukharchyk, N., Wieck, A. D., Siegel, M., Ustinov, A. V., Bushev, P.
Publikováno v:
Phys. Rev. B 90, 075112 (2014)
Quantum memories are integral parts of both quantum computers and quantum communication networks. Naturally, such a memory is embedded into a hybrid quantum architecture, which has to meet the requirements of fast gates, long coherence times and long
Externí odkaz:
http://arxiv.org/abs/1402.5242