3–7 Jun 2019
Europe/Berlin timezone

New Structures in Axion Halos on Super-de Broglie Scales

4 Jun 2019, 12:25
20m
Main Lecture Hall (Physics Department)

Main Lecture Hall

Physics Department

Oral Morning 22

Speaker

Dr Erik Lentz (University of Goettingen)

Description

It was recently shown that axion dark matter, as a highly-correlated Bose fluid, contains extra-classical physics on super-de Broglie and cosmological length scales. The extra-classical physics comes in the form of an exchange-correlation interaction, induced by the constraints of symmetric particle exchange and inter-axion correlations from self-gravitation. Exchange-correlation physics creates opportunities for axion dark matter to form cosmological structures unique from standard cold dark matter. This talk presents our most recent results in studying axion structure formation with exchange-correlation interactions, including N-body simulations of full collapse and virialization of isolated halos. Novel structures induced by exchange-correlation interactions are found to be created in even the most violent collapses. Applications to observation and axion search efforts are also discussed.

Primary author

Dr Erik Lentz (University of Goettingen)

Co-authors

Dr Leslie Rosenberg (University of Washington) Dr Thomas Quinn (University of Washington)

Presentation materials