Friday, February 29, 2008 at 3:00 PM in HA 274
Matthew Corne, Non-Localizability of Electric Coupling and Gravitational Binding of Charged Objects
The energy momentum tensor in general relativity contains only localized contributions to the total energy--momentum. Here, we consider a static, spherically symmetric object consisting of a charged perfect fluid. For this object, the total gravitational mass contains a non--localizable contribution of electric coupling (ordinarily associated with electromagnetic mass). We derive an explicit expression for the total mass which implies that the non--localizable contribution of electric coupling is not bound together by gravity, thus prohibiting the existence of objects with pure Lorentz electromagnetic mass in general relativity.
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Seminar Organizer: Ronald Fulp