Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Cerfontaine, Pascal"'
Achieving high fidelity control of spin qubits with conventional electron dipole spin resonance (EDSR) requires large magnetic field gradients of about 1 mT/nm, which also couple the qubit to charge noise, and large drive amplitudes of order 1 mV. Th
Externí odkaz:
http://arxiv.org/abs/2208.10548
Calibration of quantum gates is a necessary hurdle to overcome on the way to a reliable quantum computer. In a recent paper, a protocol called Gate Set Calibration protocol (GSC) has been introduced and used to learn coherent errors from multi-qubit
Externí odkaz:
http://arxiv.org/abs/2206.03417
Realistic modeling of qubit systems including noise and constraints imposed by control hardware is required for performance prediction and control optimization of quantum processors. We introduce qopt, a software framework for simulating qubit dynami
Externí odkaz:
http://arxiv.org/abs/2110.05873
Autor:
Le, Isabel Nha Minh, Teske, Julian D., Hangleiter, Tobias, Cerfontaine, Pascal, Bluhm, Hendrik
Publikováno v:
Phys. Rev. Applied 17, 024006 (2022)
Auto-correlated noise appears in many solid state qubit systems and hence needs to be taken into account when developing gate operations for quantum information processing. However, explicitly simulating this kind of noise is often less efficient tha
Externí odkaz:
http://arxiv.org/abs/2103.09126
Publikováno v:
Phys. Rev. Res. 3, 043047 (2021)
Correlated, non-Markovian noise is present in many solid-state systems employed as hosts for quantum information technologies, significantly complicating the realistic theoretical description of these systems. In this regime, the effects of noise on
Externí odkaz:
http://arxiv.org/abs/2103.02403
Publikováno v:
Phys. Rev. Lett. 127, 170403 (2021)
Many qubit implementations are afflicted by correlated noise not captured by standard theoretical tools that are based on Markov approximations. While independent gate operations are a key concept for quantum computing, it is actually not possible to
Externí odkaz:
http://arxiv.org/abs/2103.02385
Publikováno v:
Phys. Rev. A 102, 022416 (2020)
Based on numerically-optimized real-device gates and parameters we study the performance of the phase-flip (repetition) code on a linear array of Gallium Arsenide (GaAs) quantum dots hosting singlet-triplet qubits. We first examine the expected perfo
Externí odkaz:
http://arxiv.org/abs/2002.05136
Autor:
Cerfontaine, Pascal, Botzem, Tim, Ritzmann, Julian, Humpohl, Simon Sebastian, Ludwig, Arne, Schuh, Dieter, Bougeard, Dominique, Wieck, Andreas D., Bluhm, Hendrik
Publikováno v:
Nature Communications 11, 4144 (2020)
Semiconductor spin qubits have recently seen major advances in coherence time and control fidelities, leading to a single-qubit performance that is on par with other leading qubit platforms. Most of this progress is based on microwave control of sing
Externí odkaz:
http://arxiv.org/abs/1906.06169
Publikováno v:
Physical Review Applied 13, 044071 (2020)
The precise and automated calibration of quantum gates is a key requirement for building a reliable quantum computer. Unlike errors from decoherence, systematic errors can in principle be completely removed by tuning experimental parameters. Here, we
Externí odkaz:
http://arxiv.org/abs/1906.00950
Autor:
Teske, Julian D., Humpohl, Simon, Otten, René, Bethke, Patrick, Cerfontaine, Pascal, Dedden, Jonas, Ludwig, Arne, Wieck, Andreas D., Bluhm, Hendrik
While spin qubits based on gate-defined quantum dots have demonstrated very favorable properties for quantum computing, one remaining hurdle is the need to tune each of them into a good operating regime by adjusting the voltages applied to electrosta
Externí odkaz:
http://arxiv.org/abs/1901.01972