Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Amr Osman"'
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:
Lert Chayanun, Janka Biznárová, Lunjie Zeng, Per Malmberg, Andreas Nylander, Amr Osman, Marcus Rommel, Pui Lam Tam, Eva Olsson, Per Delsing, August Yurgens, Jonas Bylander, Anita Fadavi Roudsari
Publikováno v:
APL Quantum, Vol 1, Iss 2, Pp 026115-026115-10 (2024)
We systematically investigate the influence of the fabrication process on dielectric loss in aluminum-on-silicon superconducting coplanar waveguide resonators with internal quality factors (Qi) of about one million at the single-photon level. These d
Externí odkaz:
https://doaj.org/article/3618182393f14defb112b8b9bcbade3c
Autor:
Marian Soliman, Amr Osman, Sherif A. Eissa, Mohamed Anis, Omar A. Barrada, Mohamed Hasaballah
Publikováno v:
Oftalʹmologiâ, Vol 20, Iss 4, Pp 656-663 (2023)
Purpose. To evaluate the performance and the visual outcomes of Acrysof PanOptix trifocal IOL in terms of safety, efficacy, predictability and assessment of the quality of vision after implantation as regards; contrast sensitivity and ocular aberrati
Externí odkaz:
https://doaj.org/article/578706ff733f457cab7e5464b39e8b6a
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:
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:
Amr Osman, Jorge Fernández-Pendás, Christopher Warren, Sandoko Kosen, Marco Scigliuzzo, Anton Frisk Kockum, Giovanna Tancredi, Anita Fadavi Roudsari, Jonas Bylander
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043001 (2023)
The reproducibility of qubit parameters is a challenge for scaling up superconducting quantum processors. Signal cross talk imposes constraints on the frequency separation between neighboring qubits. The frequency uncertainty of transmon qubits arisi
Externí odkaz:
https://doaj.org/article/da89af3fa78440d6b511650202383024
Publikováno v:
Journal of Orthopaedics, Trauma and Rehabilitation, Vol 29 (2022)
Background The Insall-Burstein posterior-stabilized knee design was first developed in 1978 by adding a central cam mechanism to the articular surface geometry of the total condylar prosthesis to correct its problems being not “rolling back”. Sin
Externí odkaz:
https://doaj.org/article/eea27fe0ede3422bb4eb97995e8d5979
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:
Amr Osman
Publikováno v:
Shedet, Vol 6, Iss 6, Pp 203-211 (2019)
Detecting organic additives in ancient mortars is significant to be carried out as far as mineralogical, chemical, and physical investigations. That characterisation allows understanding the technology of those mortars and is important to make approp
Externí odkaz:
https://doaj.org/article/1d5e083cf59e45fbbd14f059748b0b3e