Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Kestutis Grigoras"'
Publikováno v:
Advanced Electronic Materials, Vol 10, Iss 7, Pp n/a-n/a (2024)
Abstract Low‐power nonvolatile memories operating down to deep cryogenic temperatures are important for a large spectrum of applications from high‐performance computing, electronics interfacing quantum computing hardware to space‐based electron
Externí odkaz:
https://doaj.org/article/e47c65e525c34c9abdc9b9aa6605e1d2
Autor:
Liangyu Chen, Hang-Xi Li, Yong Lu, Christopher W. Warren, Christian J. Križan, Sandoko Kosen, Marcus Rommel, Shahnawaz Ahmed, Amr Osman, Janka Biznárová, Anita Fadavi Roudsari, Benjamin Lienhard, Marco Caputo, Kestutis Grigoras, Leif Grönberg, Joonas Govenius, Anton Frisk Kockum, Per Delsing, Jonas Bylander, Giovanna Tancredi
Publikováno v:
npj Quantum Information, Vol 9, Iss 1, Pp 1-7 (2023)
Abstract High-fidelity and rapid readout of a qubit state is key to quantum computing and communication, and it is a prerequisite for quantum error correction. We present a readout scheme for superconducting qubits that combines two microwave techniq
Externí odkaz:
https://doaj.org/article/8c3871fbf1624c9781796e27cc450677
Autor:
Hang-Xi Li, Daryoush Shiri, Sandoko Kosen, Marcus Rommel, Lert Chayanun, Andreas Nylander, Robert Rehammar, Giovanna Tancredi, Marco Caputo, Kestutis Grigoras, Leif Gronberg, Joonas Govenius, Jonas Bylander
Publikováno v:
IEEE Transactions on Quantum Engineering, Vol 4, Pp 1-12 (2023)
In superconducting quantum processors, the predictability of device parameters is of increasing importance as many laboratories scale up their systems to larger sizes in a 3-D-integrated architecture. In particular, the properties of superconducting
Externí odkaz:
https://doaj.org/article/1bf40183450747f580a9485e2790ac86
Autor:
Liangyu Chen, Hang-Xi Li, Yong Lu, Christopher W. Warren, Christian J. Križan, Sandoko Kosen, Marcus Rommel, Shahnawaz Ahmed, Amr Osman, Janka Biznárová, Anita Fadavi Roudsari, Benjamin Lienhard, Marco Caputo, Kestutis Grigoras, Leif Grönberg, Joonas Govenius, Anton Frisk Kockum, Per Delsing, Jonas Bylander, Giovanna Tancredi
Publikováno v:
npj Quantum Information, Vol 9, Iss 1, Pp 1-1 (2023)
Externí odkaz:
https://doaj.org/article/0cb5c8f00ca344cb8bf78abf149ab270
Autor:
Mohammad Samani, Christian P. Scheller, Omid Sharifi Sedeh, Dominik M. Zumbühl, Nikolai Yurttagül, Kestutis Grigoras, David Gunnarsson, Mika Prunnila, Alexander T. Jones, Jonathan R. Prance, Richard P. Haley
Publikováno v:
Physical Review Research, Vol 4, Iss 3, p 033225 (2022)
Temperatures below 1 mK on-chip hold great potential for quantum physics but present a great challenge due to the lack of suitable thermometry and the detrimental pulse-tube vibrations of cryogen-free refrigerators. Here, we solve the pulse-tube prob
Externí odkaz:
https://doaj.org/article/44f22a60466a4d94ad10e59843ff7048
Autor:
Aapo Varpula, Kirsi Tappura, Jonna Tiira, Kestutis Grigoras, Olli-Pekka Kilpi, Kuura Sovanto, Jouni Ahopelto, Mika Prunnila
Publikováno v:
APL Photonics, Vol 6, Iss 3, Pp 036111-036111-11 (2021)
Infrared (IR) radiation detectors are used in numerous applications from thermal imaging to spectroscopic gas sensing. Obtaining high speed and sensitivity, low-power operation, and cost-effectiveness with a single technology remains to be a challeng
Externí odkaz:
https://doaj.org/article/25a9065e47be441aac3cbaeffa7b48ed
Autor:
Tomi Ryynänen, Anssi Pelkonen, Kestutis Grigoras, Oili M. E. Ylivaara, Tanja Hyvärinen, Jouni Ahopelto, Mika Prunnila, Susanna Narkilahti, Jukka Lekkala
Publikováno v:
Frontiers in Neuroscience, Vol 13 (2019)
Low noise platinum black or sputtered titanium nitride (TiN) microelectrodes are typically used for recording electrical activity of neuronal or cardiac cell cultures. Opaque electrodes and tracks, however, hinder the visibility of the cells when ima
Externí odkaz:
https://doaj.org/article/badd64e9cedb4b5d8ca2c5574eb5d642
Autor:
Aapo Varpula, Kestutis Grigoras, Kirsi Tappura, Andrey V. Timofeev, Andrey Shchepetov, Juha Hassel, Jouni Ahopelto, Mika Prunnila
Publikováno v:
Proceedings, Vol 2, Iss 13, p 894 (2018)
The state-of-the-art infrared (IR) detection uses quantum photodetectors and bolometers. Quantum IR photodetectors are expensive and require cooling, and exotic and toxic materials. Whereas, bolometers are cost-efficient and uncooled, but they are mu
Externí odkaz:
https://doaj.org/article/98286b2a8b68460b97d640aa161ece60
Publikováno v:
Proceedings, Vol 2, Iss 13, p 883 (2018)
Microchips have been designed and fabricated for the fast thermal characterization of samples by extension of the 3-omega method. Both solid and liquid samples can be measured by applying a small amount of material under investigation on the chip con
Externí odkaz:
https://doaj.org/article/1bf70e10c3fd4a6b8752af3ef94c0c1b
Autor:
Sandoko Kosen, Hang-Xi Li, Marcus Rommel, Daryoush Shiri, Christopher Warren, Leif Grönberg, Jaakko Salonen, Tahereh Abad, Janka Biznárová, Marco Caputo, Liangyu Chen, Kestutis Grigoras, Göran Johansson, Anton Frisk Kockum, Christian Križan, Daniel Pérez Lozano, Graham J Norris, Amr Osman, Jorge Fernández-Pendás, Alberto Ronzani, Anita Fadavi Roudsari, Slawomir Simbierowicz, Giovanna Tancredi, Andreas Wallraff, Christopher Eichler, Joonas Govenius, Jonas Bylander
Publikováno v:
Kosen, S, Li, H X, Rommel, M, Shiri, D, Warren, C, Grönberg, L, Salonen, J, Abad, T, Biznárová, J, Caputo, M, Chen, L, Grigoras, K, Johansson, G, Kockum, A F, Križan, C, Lozano, D P, Norris, G J, Osman, A, Fernández-Pendás, J, Ronzani, A, Roudsari, A F, Simbierowicz, S, Tancredi, G, Wallraff, A, Eichler, C, Govenius, J & Bylander, J 2022, ' Building blocks of a flip-chip integrated superconducting quantum processor ', Quantum Science and Technology, vol. 7, no. 3, 035018 . https://doi.org/10.1088/2058-9565/ac734b
Quantum Science and Technology vol.7(2022)
Quantum Science and Technology vol.7(2022)
We have integrated single and coupled superconducting transmon qubits into flip-chip modules. Each module consists of two chips -- one quantum chip and one control chip -- that are bump-bonded together. We demonstrate time-averaged coherence times ex