Time dependent quantum magnetism: Coherence in solid state physics – Niels Bohr Institute - University of Copenhagen

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Niels Bohr Institute > Calendar > 2009 > Time dependent quantum...

Time dependent quantum magnetism: Coherence in solid state physics

Abstract: Solid state physicists have decades of experience in detecting quantum correlations in the ground state of many-body systems. One particular powerful method is neutron scattering.

I will present new ideas as to how we can add time-dependence to neutron scattering, to ultimately study quantum spin systems out of equilibrium.

This would in particular be interesting close to a quantum phase transition, where the entanglement length in the system may diverge and where coherent oscillations of the order parameter has been predicted.

The talk will start with a review of quantum magnetism and neutron scattering for non-experts.