Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Marina Kudra"'
Autor:
Axel M. Eriksson, Théo Sépulcre, Mikael Kervinen, Timo Hillmann, Marina Kudra, Simon Dupouy, Yong Lu, Maryam Khanahmadi, Jiaying Yang, Claudia Castillo-Moreno, Per Delsing, Simone Gasparinetti
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract Linear bosonic modes offer a hardware-efficient alternative for quantum information processing but require access to some nonlinearity for universal control. The lack of nonlinearity in photonics has led to encoded measurement-based quantum
Externí odkaz:
https://doaj.org/article/df8cc2f8a34040ebbe461f16d4bef6fe
Autor:
Yong Lu, Marina Kudra, Timo Hillmann, Jiaying Yang, Hang-Xi Li, Fernando Quijandría, Per Delsing
Publikováno v:
npj Quantum Information, Vol 9, Iss 1, Pp 1-11 (2023)
Abstract We have designed a tunable nonlinear resonator terminated by a SNAIL (Superconducting Nonlinear Asymmetric Inductive eLement). Such a device possesses a Kerr-free point in which the external magnetic flux allows to suppress the Kerr interact
Externí odkaz:
https://doaj.org/article/5f89991205924032abcf110e7da2f584
Autor:
Marina Kudra, Mikael Kervinen, Ingrid Strandberg, Shahnawaz Ahmed, Marco Scigliuzzo, Amr Osman, Daniel Pérez Lozano, Mats O. Tholén, Riccardo Borgani, David B. Haviland, Giulia Ferrini, Jonas Bylander, Anton Frisk Kockum, Fernando Quijandría, Per Delsing, Simone Gasparinetti
Publikováno v:
PRX Quantum, Vol 3, Iss 3, p 030301 (2022)
Hosting nonclassical states of light in three-dimensional microwave cavities has emerged as a promising paradigm for continuous-variable quantum information processing. Here we experimentally demonstrate high-fidelity generation of a range of Wigner-
Externí odkaz:
https://doaj.org/article/86962c7cc06f43dbaaa8b846f88a3105
Autor:
Anita Fadavi Roudsari, Daryoush Shiri, Hampus Renberg Nilsson, Giovanna Tancredi, Amr Osman, Ida-Maria Svensson, Marina Kudra, Marcus Rommel, Jonas Bylander, Vitaly Shumeiko, Per Delsing
We report the implementation of a near-quantum-limited, traveling-wave parametric amplifier that uses three-wave mixing (3WM). To favor amplification by 3WM, we use the superconducting nonlinear asymmetric inductive element (SNAIL) loops, biased with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dff0c29c3b77ae7275243b4240053833
http://arxiv.org/abs/2209.07551
http://arxiv.org/abs/2209.07551
Autor:
Marina Kudra, Mikael Kervinen, Ingrid Strandberg, Shahnawaz Ahmed, Marco Scigliuzzo, Amr Osman, Daniel Pérez Lozano, Mats O. Tholén, Riccardo Borgani, David B. Haviland, Giulia Ferrini, Jonas Bylander, Anton Frisk Kockum, Fernando Quijandría, Per Delsing, Simone Gasparinetti
Hosting non-classical states of light in three-dimensional microwave cavities has emerged as a promising paradigm for continuous-variable quantum information processing. Here we experimentally demonstrate high-fidelity generation of a range of Wigner
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c70123ecfba79a55d3ea836addb48362
http://arxiv.org/abs/2111.07965
http://arxiv.org/abs/2111.07965
Publikováno v:
Science Advances
Description
Radiofrequency modulation of dielectric defects reduces fluctuations in superconducting resonators and quantum circuits.
Frequency instability of superconducting resonators and qubits leads to dephasing and time-varying energy l
Radiofrequency modulation of dielectric defects reduces fluctuations in superconducting resonators and quantum circuits.
Frequency instability of superconducting resonators and qubits leads to dephasing and time-varying energy l
Autor:
Jonathan Burnett, David Niepce, Per Delsing, Andreas Bengtsson, Marco Scigliuzzo, Marina Kudra, Jonas Bylander
Publikováno v:
npj Quantum Information, Vol 5, Iss 1, Pp 1-8 (2019)
npj Quantum Information
npj Quantum Information
We benchmark the decoherence of superconducting qubits to examine the temporal stability of energy-relaxation and dephasing. By collecting statistics during measurements spanning multiple days, we find the mean parameters $\overline{T_{1}}$ = 49 $\mu
Autor:
David Niepce, Per Delsing, Björn Wickman, J. Biznárová, Marina Kudra, Jonathan Burnett, Simone Gasparinetti, A. Fadavi Roudsari
Publikováno v:
Applied Physics Letters. 117:070601
We present a comprehensive study of internal quality factors in superconducting stub-geometry three-dimensional cavities made of aluminum. We use wet etching, annealing, and electrochemical polishing to improve the as machined quality factor. We find