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A Two Qubit Logic Gate in Silicon
M. Veldhorst, C. H. Yang, J. C. C. Hwang +9
Quantum computation requires qubits that can be coupled and realized in a scalable manner, together with universal and high-fidelity one- and two-qubit logic gates \cite{DiVincenzo…
Quantifying the quantum gate fidelity of single-atom spin qubits in silicon by randomized benchmarking
J. T. Muhonen, A. Laucht, S. Simmons +9
Building upon the demonstration of coherent control and single-shot readout of the electron and nuclear spins of individual 31-P atoms in silicon, we present here a systematic expe…
Coherent Control of a Single Silicon-29 Nuclear Spin Qubit
Jarryd J. Pla, Fahd A. Mohiyaddin, Kuan Y. Tan +6
Magnetic fluctuations caused by the nuclear spins of a host crystal are often the leading source of decoherence for many types of solid-state spin qubit. In group-IV materials, the…
An addressable quantum dot qubit with fault-tolerant control fidelity
M. Veldhorst, J. C. C. Hwang, C. H. Yang +8
Exciting progress towards spin-based quantum computing has recently been made with qubits realized using nitrogen-vacancy (N-V) centers in diamond and phosphorus atoms in silicon,…
Storing quantum information for 30 seconds in a nanoelectronic device
Juha T. Muhonen, Juan P. Dehollain, Arne Laucht +7
The spin of an electron or a nucleus in a semiconductor [1] naturally implements the unit of quantum information -- the qubit -- while providing a technological link to the establi…
Single-shot readout and relaxation of singlet/triplet states in exchange-coupled P electron spins in silicon
Juan P. Dehollain, Juha T. Muhonen, Kuan Y. Tan +4
We present the experimental observation of a large exchange coupling eV between two P electron spin qubits in silicon. The singlet and triplet states of t…