Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Christian Križan"'
Autor:
Janka Biznárová, Amr Osman, Emil Rehnman, Lert Chayanun, Christian Križan, Per Malmberg, Marcus Rommel, Christopher Warren, Per Delsing, August Yurgens, Jonas Bylander, Anita Fadavi Roudsari
Publikováno v:
npj Quantum Information, Vol 10, Iss 1, Pp 1-8 (2024)
Abstract We demonstrate aluminum-on-silicon planar transmon qubits with time-averaged T 1 energy relaxation times of up to 270 μs, corresponding to Q = 5 million, and a highest observed value of 501 μs. Through materials analysis techniques and num
Externí odkaz:
https://doaj.org/article/20bfc73ce0604c19a9c2c8f419ef1076
Autor:
Sandoko Kosen, Hang-Xi Li, Marcus Rommel, Robert Rehammar, Marco Caputo, Leif Grönberg, Jorge Fernández-Pendás, Anton Frisk Kockum, Janka Biznárová, Liangyu Chen, Christian Križan, Andreas Nylander, Amr Osman, Anita Fadavi Roudsari, Daryoush Shiri, Giovanna Tancredi, Joonas Govenius, Jonas Bylander
Publikováno v:
PRX Quantum, Vol 5, Iss 3, p 030350 (2024)
Quantum processors require a signal-delivery architecture with high addressability (low crosstalk) to ensure high performance already at the scale of dozens of qubits. Signal crosstalk causes inadvertent driving of quantum gates, which will adversely
Externí odkaz:
https://doaj.org/article/b4c9438783c84d1198810be2120f0e78
Autor:
Christopher W. Warren, Jorge Fernández-Pendás, Shahnawaz Ahmed, Tahereh Abad, Andreas Bengtsson, Janka Biznárová, Kamanasish Debnath, Xiu Gu, Christian Križan, Amr Osman, Anita Fadavi Roudsari, Per Delsing, Göran Johansson, Anton Frisk Kockum, Giovanna Tancredi, Jonas Bylander
Publikováno v:
npj Quantum Information, Vol 9, Iss 1, Pp 1-9 (2023)
Abstract While all quantum algorithms can be expressed in terms of single-qubit and two-qubit gates, more expressive gate sets can help reduce the algorithmic depth. This is important in the presence of gate errors, especially those due to decoherenc
Externí odkaz:
https://doaj.org/article/41f8802f57ad4d95921f53c8f133518c
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
Autor:
Andreas Bengtsson, Christian Križan, Anton Frisk Kockum, Jonas Bylander, Göran Johansson, Daryoush Shiri, Per Delsing, Xiu Gu, Marika Svensson, Giulia Ferrini, Philip Krantz, Giovanna Tancredi, Ida-Maria Svensson, Christopher Warren, Pontus Vikstål
Publikováno v:
Physical Review Applied
Present-day, noisy, small or intermediate-scale quantum processors---although far from fault-tolerant---support the execution of heuristic quantum algorithms, which might enable a quantum advantage, for example, when applied to combinatorial optimiza
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6348ad1411bd45a8703441405069ff2
http://arxiv.org/abs/1912.10495
http://arxiv.org/abs/1912.10495