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Koshelets, V. P.; Dmitriev, P. N.; Ermakov, A. B.; Filippenko, L. V.; Sobolev, A. S.; Torgashin, M. Yu.; Borisov, V. B. |
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Superconducting flux-flow oscillators for THz integrated receiver |
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Abstract |
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2005 |
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Presented at the second Franco-Russian Seminar on Nanotechnologies |
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SIR |
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Lille, France |
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521 |
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Vaks, V. L.; Kurin, V. V.; Pankratov, A. L.; Koshelets, V. P. |
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Investigation of spectral properties of phase-focked flux flow oscillator |
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2005 |
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ISEC |
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PD-04 |
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SIR, FFO |
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Netherlands |
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522 |
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Hoogeveen, R. W. M.; Yagoubov, P. A.; de Lange, A.; Selig, A. M.; Koshelets, V. P.; Ellison B. N.; Birk, M. |
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Title |
Superconducting integrated receiver development for TELIS |
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Conference Article |
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Year |
2005 |
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Proc. 12th International Symposium on Remote Sensing |
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Bruges, Belgium |
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523 |
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Koshelets, V. P.; Borisov, V. B.; Dmitriev, P. N.; Ermakov, A. B.; Filippenko, L. V.; Khudchenko, A. V.; Kiselev, O. S.; Lapitskaya, I. L.; Sobolev, A. S.; Torgashin, M. Yu.; Yagoubov, P. A.; Hoogeveen, R. W. M. |
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Title |
Integrated submillimeter receiver for TELIS |
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Journal Article |
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2006 |
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Joint International Workshop “Nanosensors and Arrays of Quantum Dots and Josephson Junctions for space applications”, 10th International Workshop “From Andreev Reflection to the Earliest Universe” |
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Bjorkliden, Kiruna, Sweden |
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no |
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527 |
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Feofanov, A. K.; Oboznov, V. A.; Bol'Ginov, V. V.; Lisenfeld, J.; Poletto, S.; Ryazanov, V. V.; Rossolenko, A. N.; Khabipov, M.; Balashov, D.; Zorin, A. B.; Dmitriev, P. N.; Koshelets, V. P.; Ustinov, A. V. |
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Title |
Implementation of superconductor/ferromagnet/ superconductor |
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Journal Article |
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2010 |
Publication |
Nature Physics |
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Nat. Phys. |
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6 |
Issue |
8 |
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593-597 |
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fromIPMRAS |
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Abstract |
High operation speed and low energy consumption may allow the superconducting digital single-flux-quantum circuits to outperform traditional complementary metal-oxide-semiconductor logic. The remaining major obstacle towards high element densities on-chip is a relatively large cell size necessary to hold a magnetic flux quantum Φ0. Inserting a π-type Josephson junction in the cell is equivalent to applying flux Φ0/2 and thus makes it possible to solve this problem. Moreover, using π-junctions in superconducting qubits may help to protect them from noise. Here we demonstrate the operation of three superconducting circuits-two of them are classical and one quantum-that all utilize such π-phase shifters realized using superconductor/ferromagnet/superconductor sandwich technology. The classical circuits are based on single-flux-quantum cells, which are shown to be scalable and compatible with conventional niobium-based superconducting electronics. The quantum circuit is a π-biased phase qubit, for which we observe coherent Rabi oscillations. We find no degradation of the measured coherence time compared to that of a reference qubit without a π-junction. |
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RPLAB @ gujma @ |
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805 |
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