Phone: +49 (0) 331 567 7193
Fax: +49 (0) 331 567 7298
email: (@aei.mpg.de) harte
My research is mainly concerned with how objects move in curved spacetimes. This includes
- Self-interaction: How does an object’s “own” (electromagnetic, gravitational, …) field affect its overall motion? What about its spin or mass?
- Extended-body effects: How does something’s shape and internal dynamics influence its motion as a whole?
I’ve developed a non-perturbative formalism that addresses these questions in a wide variety of systems. There is a sense in which both of these types of phenomena are related to a type of “broken symmetry.” I’m continuing to expand upon this and understand its consequences.
I’ve also been interested in the effect of light cone caustics on wave propagation in curved spacetimes. How is the structure of a field affected by such phenomena and what are its consequences for, e.g., the dependence of an object’s self-field on its past history? Are there universal features that allow “Hadamard-like” expressions to be retained beyond a source point’s normal neighborhood? Can geometric objects like Synge’s world function be usefully extended in a similar way?
Here is a link to my publications since 2000 (from Spires)
I received my undergraduate degree in physics from Caltech, and finished my Ph.D. at Penn State in 2007. I was a postdoc at the University of Chicago from 2007-2010, and joined the AEI after that.