Structured neutron waves

01/31/2020 - 3:30pm to 5:00pm
Speaker(s) / Presenter(s): 
Dmitry Pushin (Waterloo)

The neutron, one of the most common building blocks of matter, is also a unique probe for studying materials and fundamental interactions. The only electrically-neutral nucleus, the neutron passes through most materials with ease, even at the lowest energies. Neutrons are particularly powerful at characterizing magnetic structures.  In order to extend the applications of neutron physics as a quantum probes/sensors we have developed methods based on Quantum Information Processing for preparing structured waves such as orbital and spin-orbit states of neutrons.  Such states may be prepared for the beam as a whole, or with reference to the coherence length of the neutron wavepacket, which is much smaller than the width of useful beams.  I will show how we can control wave packet momentum distribution by various phase gratings and will describe experiments to prepare and characterize neutron beams with specific orbital and spin-orbit structure based on neutron interferometry and will show how we can apply these methods to other type of probes such as light.

Host: Chris Crawford

Colloqium will be held at Chemistry-Physics building (CP) room 155, located at 505 Rose street. 

Refreshments with the speaker will be served at 3:00 pm in CP-179. 

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