School of Science

News

9 Mar 2016

Professor Yuri Pashkin to give this year's Mott lecture on 16th March

On Wednesday 16th March, Professor Yuri Pashkin, from Lancaster University, will present the 2016 Sir Nevill Mott Annual Lecture.

The series of lectures was initiated in 1995 when Sir Nevill visited the Department of Physics and presented a lecture entitled "65 Years in Physics".  The lecture was a great success and Sir Nevill kindly permitted his name to be associated with an annual lecture series to be given by distinguished invited speakers.

This year's speaker, Professor Yuri Pashkin, is Chair of Experimental Condensed Matter Physics at Lancaster University and his research interests include quantum computing with superconducting nanocircuits, quantum metrology with Coulomb blockade devices and nanoelectromechanical systems.

His talk at Loughborough University is titled: "Why superconducting circuits are good for quantum technologies" (abstract below).The lecture is free to attend and all staff and students within the School of Science are encouraged to attend.

Time: 5.15pm

Location: W.0.01 - Sir David Davies Building

Abstract: 

Development of quantum technologies dictates the necessity of finding a proper physical system that could satisfy stringent requirements on quantum coherence of individual components, their scalability, good controllability of device parameters, ease of fabrication, etc.  

Superconducting nanoelectronic devices are among the most promising for many applications in which quantum behaviour becomes important and may satisfy all the requirements imposed. Superconductors possess two properties that are crucial prerequisites for the observation of quantum effects:(i) they can carry dc current with zero resistance and (ii)  have a gap in the energy spectrum. While the first property ensures dissipationless charge transport in the material, the second property protects charge carriers, the Cooper pairs, from low-energy excitations. This gives a possibility to prepare, manipulate and measure quantum states in superconducting circuits and use them for practical purposes. Also, the fabrication process for superconducting electronics is well established.In my talk I will give a brief introduction of the field and then focus on two types of circuits that are currently being intensively studied for applications in quantum information processing and quantum metrology. Besides explaining the physics of the superconducting devices, I will also pay attention to some technical issues involved. In the end, I will describe Lancaster efforts in quantum technologies.