Joseph Salfi, UBC, December 2, 2019, 14:00, "Hole Spin Qubits".

Interest in spin-based quantum bits in solids has greatly intensified in the quantum information community in recent years. Besides the small on-chip areas and well-understood qubit manipulation and coupling schemes of spin qubits, recent experiments have shown that spin qubits possess the longest coherence times of all solid-state qubits in isotope purified materials, from seconds to minutes. One of these materials, silicon, is the workhorse of the microelectronic industry. In this seminar I will introduce the concept of spin qubits, how they are fabricated, measured, and how logic gates are performed on them. I discuss recent efforts on hole spin-based quantum bits, which offer certain advantages for scalability, but have traditionally not possessed long coherence times. I will present our results demonstrating record-long hole spin coherence times in silicon, hole spin qubit readout in an industrially fabricated transistor, and prospects for applications of spin qubits in quantum simulators.

TRIUMF auditorium. https://www.triumf.ca/home/contact-us/maps-triumf

Organized by Dr. Olivia Di Matteo at TRIUMF, as a Fall 2019 lecture series. https://www.triumf.ca/research-program/lectures-conferences/upcoming-se…