There has been a great deal of effort over the last 25 years to make high-fidelity quantum gates in a variety of physical sys tems\, which has been very successful. Multiple technologies have reac hed the threshold fidelity level required for quantum error correction to work. However\, these mostly began as physics experiments without too much thought as to how we can make millions of qubits and millions of interconnected quantum gates for useful quantum computers. I will discuss an alternative approach\, using electron spins as the qubits\, but with the electron bound to superfluid helium. These are extremely mobile with very low disorder and low intrinsic decoherence. The stra tegy has been to first start with a materials system and qubits which are scalable\, but with a clear path to quantum devices. I will discus s calculations of various decoherence mechanisms\, our work to demonst rate scalability\, and progress towards quantum devices.
\nThis event starts at 3:30pm with refreshments\, followed at 3:45pm by a sh ort presentation by Rabeeya Hamid (Kats group) titled "Passive visible imaging of low-intensity near-infrared light via triplet-triplet anni hilation". The invited presentation starts at 4pm.
URL:https://www.physics.wisc.edu/events/?id=9322 END:VEVENT END:VCALENDAR