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Superconducting charge sensor coupled to an electron layer in silicon
Máté Jenei, Ruichen Zhao, Kuan Y. Tan +8
Schemes aimed at transferring individual electrons in semiconductor devices and detecting possible transfer errors have increasing importance for metrological applications. We stud…
Waiting time distributions in a two-level fluctuator coupled to a superconducting charge detector
Máté Jenei, Elina Potanina, Ruichen Zhao +7
We analyze charge fluctuations in a parasitic state strongly coupled to a superconducting Josephson-junction-based charge detector. The charge dynamics of the state resembles that…
Controllable freezing of the nuclear spin bath in a single-atom spin qubit
Mateusz T. Mądzik, Thaddeus D. Ladd, Fay E. Hudson +8
The quantum coherence and gate fidelity of electron spin qubits in semiconductors is often limited by noise arising from coupling to a bath of nuclear spins. Isotopic enrichment of…
Coherent electrical control of a single high-spin nucleus in silicon
Serwan Asaad, Vincent Mourik, Benjamin Joecker +12
Nuclear spins are highly coherent quantum objects. In large ensembles, their control and detection via magnetic resonance is widely exploited, e.g. in chemistry, medicine, material…
A silicon quantum-dot-coupled nuclear spin qubit
Bas Hensen, Wister Wei Huang, Chih-Hwan Yang +9
Single nuclear spins in the solid state have long been envisaged as a platform for quantum computing, due to their long coherence times and excellent controllability. Measurements…
Silicon quantum processor unit cell operation above one Kelvin
C. H. Yang, R. C. C. Leon, J. C. C. Hwang +12
Quantum computers are expected to outperform conventional computers for a range of important problems, from molecular simulation to search algorithms, once they can be scaled up to…
Coherent spin control of s-, p-, d- and f-electrons in a silicon quantum dot
R. C. C. Leon, C. H. Yang, J. C. C. Hwang +12
Once the periodic properties of elements were unveiled, chemical bonds could be understood in terms of the valence of atoms. Ideally, this rationale would extend to quantum dots, o…