W E L C O M E | learn more |
Research Center for Quantum Information
Institute of Physics, Slovak Academy of Sciences
Dúbravská cesta 9, 84511 Bratislava, Slovakia
Tel: (+421 +2) 20910701
Fax: (+421 +2) 5477-6085
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N E W S | old news |
  10.01.2017 seminar
NONLOCAL SEMINAR :: http://nlseminar.weebly.com ::
13:15-14:00 Siddharth Karumanchi (Brno): Conferencing encoders
14:30-15:15 Michal Sedlák (Bratislava): Storing and retrieving quantum channels
15:45-16:30 Matej Pivoluska (Vienna): On layered quantum key distribution

Date: 26/01/2017 (Thursday), 12:00-18:00
Place: RCQI, Bratislava
  11.11.2016 Research publication
Signatures of Hyperfine, Spin-Orbit, and Decoherence Effects in a Pauli Spin Blockade
We detect in real time interdot tunneling events in a weakly coupled two-electron double quantum dot in GaAs. At finite magnetic fields, we observe two characteristic tunneling times Td and Tb, belonging to, respectively, a direct and a blocked (spin-flip-assisted) tunneling. The latter corresponds to the lifting of a Pauli spin blockade, and the tunneling times ratio η=Tb/Td characterizes the blockade efficiency. We find pronounced changes in the behavior of η upon increasing the magnetic field, with η increasing, saturating, and increasing again. We explain this behavior as due to the crossover of the dominant blockade-lifting mechanism from the hyperfine to spin-orbit interactions and due to a change in the contribution of the charge decoherence.
by T. Fujita, P. Stano, G. Allison, K. Morimoto, Y. Sato, M. Larsson, J.-H. Park, A. Ludwig, A. D. Wieck, A. Oiwa, and S. Tarucha
Phys. Rev. Lett. 117, 206802 (2016) |+++| (Editor's suggestion)
APVV-0808-12 (QIMABOS)
S E M I N A R S | more |
21/03 11:00
Ilya A. Luchnikov (Moscow)
Exact solution of collision models with correlated environment in tensor network formalism and its applications

24/03 11:00
Kamil Yu. Magadov (Moscow)
Absolutely separating quantum maps and channels
V I S I T O R S | history |

06.02-07.02 Jaroslav Pavličko
(UPJŠ, Košice, Slovakia)

13.02-14.02 Maurice A. de Gosson
(Vienna University, Austria)

15.02-17.02 Piotr Frackiewicz
(Pomeranian University, Slupsk, Poland)