Dmitry Pushin, Assistant Professor, Institute for Quantum Computing,Department of Physics and Astronomy, University of Waterloo.
Abstract
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. Nowadays neutrons, even with their ~ 15 minute lifetime, are used to study problems ranging from current flow in common batteries to cosmological dark energy. I focus on the neutron as a quantum particle. We use a Mach-Zehnder neutron interferometer to fork a neutron into superposition states separated by decimeters, to exploit macroscopic quantum interference. I discuss recent experimental searches for dark energy, the use of quantum information concepts to enhance coherence, and the twisting of neutron waves.
Site web du groupe du Pr Pushin
Cette conférence est présentée par le RQMP Versant Nord du Département de physique de l'Université de Montréal et le Département de génie physique de Polytechnique Montréal.
