December Lecture: Quantum technologies using electron and nuclear spins - Dr. John Morton (University College London)
The annual series of Institute of Physics lectures resumes in November 2013 and continues until March 2014. All of the events are held in the Welcome Rooms of the Royal Society of Edinburgh and the talk begins at 19.30. All attendees are invited to arrive early for a sherry / soft drinks reception from 19.00. On-street parking is available free after 18.30 on site.
Quantum technologies using electron and nuclear spins - Dr. John Morton (University College London)
Abstract: Many conventional technologies have not yet been pushed to their ultimate limits, as defined by the laws of quantum mechanics. Quantum technologies offer the possibility to do just that, yielding more sensitive metrology, more secure communication, and more powerful computation.
The most basic unit of quantum information, the quantum bit (or qubit), can be realized in a wide range of physical systems. I will discuss the use of electron and nuclear spins as qubits, with particular focus on defects in semiconductors, and present a number of recent results which have placed such systems at the forefront of candidates for realising quantum technologies. These include quantum coherence lifetimes ranging from seconds to hours and the ability to measure the spins of individual atoms in real time. Finally, I will discuss some of the outlook for scaling up this work to larger systems to create quantum devices that are more powerful than their classical counterparts