Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Jorge Fernández-Pendás"'
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:
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 High Energy Physics, Vol 2018, Iss 4, Pp 1-42 (2018)
Abstract Holographic RG flows can be better understood with the help of radially conserved charges. It was shown by various authors that the bulk gauge and diffeomorphism symmetries lead to the conservation of the zero mode of the holographic U(1) cu
Externí odkaz:
https://doaj.org/article/3596302b223348a1bbd2567fb3851cb7
Autor:
Xiu Gu, Jorge Fernández-Pendás, Pontus Vikstål, Tahereh Abad, Christopher Warren, Andreas Bengtsson, Giovanna Tancredi, Vitaly Shumeiko, Jonas Bylander, Göran Johansson, Anton Frisk Kockum
Publikováno v:
PRX Quantum, Vol 2, Iss 4, p 040348 (2021)
Near-term quantum computers are limited by the decoherence of qubits to only being able to run low-depth quantum circuits with acceptable fidelity. This severely restricts what quantum algorithms can be compiled and implemented on such devices. One w
Externí odkaz:
https://doaj.org/article/8ac8de3f976b45d08b0c4a1653f0fd8e
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 9, Pp 1-13 (2017)
Abstract The chiral magnetic and vortical effects denote the generation of dissipationless currents due to magnetic fields or rotation. They can be studied in holographic models with Chern-Simons couplings dual to anomalies in field theory. We study
Externí odkaz:
https://doaj.org/article/4279117abde24ee8aa9c2d63a4ba1c4e
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
Publikováno v:
Physical review letters. 129(15)
Quantum information processing is in real systems often limited by dissipation, stemming from remaining uncontrolled interaction with microscopic degrees of freedom. Given recent experimental progress, we consider weak dissipation, resulting in a sma
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
Physical Review
instname
Physical Review
We compute anomalous transport phenomena sourced by vector and axial magnetic fields in out-of-equilibrium setups produced by Vaidya background metrics in holography. We use generalized Vaidya metrics that include momentum relaxation induced by massl
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 9, Pp 1-13 (2017)
Journal of High Energy Physics
Journal of High Energy Physics
The chiral magnetic and vortical effects denote the generation of dissipationless currents due to magnetic fields or rotation. They can be studied in holographic models with Chern-Simons couplings dual to anomalies in field theory. We study a hologra