Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Ficheux, Quentin"'
Autor:
Zanuz, Dante Colao, Ficheux, Quentin, Michaud, Laurent, Orekhov, Alexei, Hanke, Kilian, Flasby, Alexander, Panah, Mohsen Bahrami, Norris, Graham J., Kerschbaum, Michael, Remm, Ants, Swiadek, François, Hellings, Christoph, Lazăr, Stefania, Scarato, Colin, Lacroix, Nathan, Krinner, Sebastian, Eichler, Christopher, Wallraff, Andreas, Besse, Jean-Claude
The dominant contribution to the energy relaxation of state-of-the-art superconducting qubits is often attributed to their coupling to an ensemble of material defects which behave as two-level systems. These defects have varying microscopic character
Externí odkaz:
http://arxiv.org/abs/2407.18746
Autor:
Ardati, Waël, Léger, Sébastien, Kumar, Shelender, Suresh, Vishnu Narayanan, Nicolas, Dorian, Mori, Cyril, D'Esposito, Francesca, Vakhtel, Tereza, Buisson, Olivier, Ficheux, Quentin, Roch, Nicolas
Encoding quantum information in quantum states with disjoint wave-function support and noise insensitive energies is the key behind the idea of qubit protection. While fully protected qubits are expected to offer exponential protection against both e
Externí odkaz:
http://arxiv.org/abs/2402.04495
Autor:
Swiadek, François, Shillito, Ross, Magnard, Paul, Remm, Ants, Hellings, Christoph, Lacroix, Nathan, Ficheux, Quentin, Zanuz, Dante Colao, Norris, Graham J., Blais, Alexandre, Krinner, Sebastian, Wallraff, Andreas
The performance of a wide range of quantum computing algorithms and protocols depends critically on the fidelity and speed of the employed qubit readout. Examples include gate sequences benefiting from mid-circuit, real-time, measurement-based feedba
Externí odkaz:
http://arxiv.org/abs/2307.07765
Autor:
Lazăr, Stefania, Ficheux, Quentin, Herrmann, Johannes, Remm, Ants, Lacroix, Nathan, Hellings, Christoph, Swiadek, Francois, Zanuz, Dante Colao, Norris, Graham J., Panah, Mohsen Bahrami, Flasby, Alexander, Kerschbaum, Michael, Besse, Jean-Claude, Eichler, Christopher, Wallraff, Andreas
Publikováno v:
2023
The ability to execute high-fidelity operations is crucial to scaling up quantum devices to large numbers of qubits. However, signal distortions originating from non-linear components in the control lines can limit the performance of single-qubit gat
Externí odkaz:
http://arxiv.org/abs/2212.01077
Autor:
Luneau, Jacquelin, Dutreix, Clément, Ficheux, Quentin, Delplace, Pierre, Douçot, Benoît, Huard, Benjamin, Carpentier, David
Publikováno v:
Phys. Rev. Research 4, 013169 (2022)
In this article, we develop a description of topological pumps as slow classical dynamical variables coupled by a quantum system. We discuss the cases of quantum Hall pumps, Thouless pumps, and the more recent Floquet pumps based frequency converters
Externí odkaz:
http://arxiv.org/abs/2109.12897
Autor:
Stevens, Jeremy, Szombati, Daniel, Maffei, Maria, Elouard, Cyril, Assouly, Réouven, Cottet, Nathanaël, Dassonneville, Rémy, Ficheux, Quentin, Zeppetzauer, Stefan, Bienfait, Audrey, Jordan, Andrew N., Auffèves, Alexia, Huard, Benjamin
Publikováno v:
Physical Review Letters, 129, 110601 (2022)
Qubits are physical, a quantum gate thus not only acts on the information carried by the qubit but also on its energy. What is then the corresponding flow of energy between the qubit and the controller that implements the gate? Here we exploit a supe
Externí odkaz:
http://arxiv.org/abs/2109.09648
Autor:
Somoroff, Aaron, Ficheux, Quentin, Mencia, Raymond A., Xiong, Haonan, Kuzmin, Roman V., Manucharyan, Vladimir E.
Increasing the degree of control over physical qubits is a crucial component of quantum computing research. We report a superconducting qubit of fluxonium type with the Ramsey coherence time reaching $T_2^*= 1.48 \pm 0.13 \mathrm{~ms}$, which exceeds
Externí odkaz:
http://arxiv.org/abs/2103.08578
Autor:
Xiong, Haonan, Ficheux, Quentin, Somoroff, Aaron, Nguyen, Long B., Dogan, Ebru, Rosenstock, Dario, Wang, Chen, Nesterov, Konstantin N., Vavilov, Maxim G., Manucharyan, Vladimir E.
Large scale quantum computing motivates the invention of two-qubit gate schemes that not only maximize the gate fidelity but also draw minimal resources. In the case of superconducting qubits, the weak anharmonicity of transmons imposes profound cons
Externí odkaz:
http://arxiv.org/abs/2103.04491
Publikováno v:
PRX Quantum 2, 020345 (2021)
We propose a family of microwave-activated entangling gates on two capacitively coupled fluxonium qubits. A microwave pulse applied to either qubit at a frequency near the half-frequency of the $|00\rangle - |11\rangle$ transition induces two-photon
Externí odkaz:
http://arxiv.org/abs/2011.10011
Autor:
Ficheux, Quentin, Nguyen, Long B., Somoroff, Aaron, Xiong, Haonan, Nesterov, Konstantin N., Vavilov, Maxim G., Manucharyan, Vladimir E.
Publikováno v:
Phys. Rev. X 11, 021026 (2021)
We demonstrate a controlled-Z gate between capacitively coupled fluxonium qubits with transition frequencies $72.3~\textrm{MHz}$ and $136.3~\textrm{MHz}$. The gate is activated by a $61.6~\textrm{ns}$ long pulse at the frequency between non-computati
Externí odkaz:
http://arxiv.org/abs/2011.02634