Mateusz T. Mądzik

TL;DR: In this article , a six-qubit processor with a focus on careful Hamiltonian engineering, on a high level of abstraction to program the quantum circuits, and on efficient background calibration is presented.

TL;DR: In this article, the authors demonstrate coherent quantum control of a single 123Sb (spin-7/2) nucleus using localized electric fields produced within a silicon nanoelectronic device.

TL;DR: In this article , the authors demonstrate universal quantum logic operations using a pair of ion-implanted 31P donor nuclei in a silicon nanoelectronic device, and demonstrate entanglement between the two nuclei and the shared electron by producing a Greenberger-Horne-Zeilinger three-qubit state with 92.5(1.0)% fidelity.

TL;DR: In this article, the authors demonstrate coherent quantum control of a single antimony (spin-7/2) nucleus, using localized electric fields produced within a silicon nanoelectronic device.

TL;DR: In this paper, the authors demonstrate the conditional, coherent control of an electron spin qubit in an exchange-coupled pair of donors implanted in silicon, and the coupling strength, $J = 32.06 \pm 0.06$ MHz, is measured spectroscopically with unprecedented precision.