ELFT HÍRADÓ

[tcsaba AT eik.bme.hu]

                     M E G H Í V Ó - I N V I T A T I O N

     Seminar series of the Department of Theoretical Physics at the
           Budapest University of Technology and Economics


                              András Pályi
                         (Department of Physics,
              Budapest University of Technology and Economics)

                  Valley qubit in a silicon quantum dot


Recent experiments on silicon-based nanostructures have seen  
breakthroughs toward quantum information processing. The valley degree  
of freedom of the electrons plays a fundamental role in these devices,  
and the lowest two single-electron energy eigenstates of such a  
quantum dot can form a so-called "valley qubit". In the talk, I will  
characterize the interaction of such a qubit with external and  
phonon-induced electric fields, discuss how that interaction can be  
utilized to coherently control and measure the qubit state, and how  
the same interactions can lead to the loss of information encoded in  
the qubit.

Idöpont: 2015. december 11., 10:15
Helyszín: BME Fizikai Intézet, Elméleti Fizika Tanszék,
Budafoki út 8. F-épület, III lépcsöház, szemináriumi szoba


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