Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Motzoi F"'
Autor:
García-Azorín, P., Cárdenas-López, F. A., Huber, G. B. P., Romero, G., Werninghaus, M., Motzoi, F., Filipp, S., Sanz, M.
Multi-mode superconducting circuits offer a promising platform for engineering robust systems for quantum computation. Previous studies have shown that single-mode devices cannot simultaneously exhibit resilience against multiple decoherence sources
Externí odkaz:
http://arxiv.org/abs/2407.18895
Autor:
Jerger, M., Motzoi, F., Gao, Y., Dickel, C., Buchmann, L., Bengtsson, A., Tancredi, G., Warren, C. W., Bylander, J., DiVincenzo, D., Barends, R., Bushev, P. A.
A key challenge in quantum computing is speeding up measurement and initialization. Here, we experimentally demonstrate a dispersive measurement method for superconducting qubits that simultaneously measures the qubit and returns the readout resonato
Externí odkaz:
http://arxiv.org/abs/2406.04891
Publikováno v:
EPL 123, 60001 (2018)
The task of controlling a quantum system under time and bandwidth limitations is made difficult by unwanted excitations of spectrally neighboring energy levels. In this article we review the Derivative Removal by Adiabatic Gate (DRAG) framework. DRAG
Externí odkaz:
http://arxiv.org/abs/1809.04919
Autor:
Dickel, C., Wesdorp, J. J., Langford, N. K., Peiter, S., Sagastizabal, R., Bruno, A., Criger, B., Motzoi, F., DiCarlo, L.
Publikováno v:
Phys. Rev. B 97, 064508 (2018)
While the on-chip processing power in circuit QED devices is growing rapidly, an open challenge is to establish high-fidelity quantum links between qubits on different chips. Here, we show entanglement between transmon qubits on different cQED chips
Externí odkaz:
http://arxiv.org/abs/1712.06141
Publikováno v:
Phys. Rev. A 94, 032306 (2016)
We show that the use of shaped pulses improves the fidelity of a Rydberg blockade two-qubit entangling gate by several orders of magnitude compared to previous protocols based on square pulses or optimal control pulses. Using analytical Derivative Re
Externí odkaz:
http://arxiv.org/abs/1605.08891
Publikováno v:
Phys. Rev. A 93, 012324 (2016)
We present a few-parameter ansatz for pulses to implement a broad set of simultaneous single-qubit rotations in frequency-crowded multilevel systems. Specifically, we consider a system of two qutrits whose working and leakage transitions suffer from
Externí odkaz:
http://arxiv.org/abs/1509.04152
Publikováno v:
Phys. Rev. A 84, 022307 (2011)
In this article, we develop a numerical method to find optimal control pulses that accounts for the separation of timescales between the variation of the input control fields and the applied Hamiltonian. In traditional numerical optimization methods,
Externí odkaz:
http://arxiv.org/abs/1102.0584
Publikováno v:
Phys. Rev. A 83, 012308 (2011)
In qubits made from a weakly anharmonic oscillator the leading source of error at short gate times is leakage of population out of the two dimensional Hilbert space that forms the qubit. In this paper we develop a general scheme based on an adiabatic
Externí odkaz:
http://arxiv.org/abs/1011.1949
Autor:
Chow, J. M., DiCarlo, L., Gambetta, J. M., Motzoi, F., Frunzio, L., Girvin, S. M., Schoelkopf, R. J.
Publikováno v:
Phys. Rev. A 82, 040305(R) (2010)
We employ pulse shaping to abate single-qubit gate errors arising from the weak anharmonicity of transmon superconducting qubits. By applying shaped pulses to both quadratures of rotation, a phase error induced by the presence of higher levels is cor
Externí odkaz:
http://arxiv.org/abs/1005.1279
Publikováno v:
Phys. Scr. T137, 014021 (2009)
We apply optimal control theory to determine the shortest time in which an energy eigenstate of a weakly anharmonic oscillator can be created under the practical constraint of linear driving. We show that the optimal pulses are beatings of mostly the
Externí odkaz:
http://arxiv.org/abs/0909.4788