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Scaling of cosmic string loops
Vitaly Vanchurin, Ken D. Olum, Alexander Vilenkin
We study the spectrum of loops as a part of a complete network of cosmic strings in flat spacetime. After a long transient regime, characterized by production of small loops at the…
Energy conditions for a generally coupled scalar field outside a reflecting sphere
Delia Schwartz-Perlov, Ken D. Olum
We calculate the stress-energy tensor for a scalar field with general curvature coupling, outside a perfectly reflecting sphere with Dirichlet boundary conditions. For conformal co…
Plate with a hole obeys the averaged null energy condition
Noah Graham, Ken D. Olum
The negative energy density of Casimir systems appears to violate general relativity energy conditions. However, one cannot test the averaged null energy condition (ANEC) using sta…
Cosmic string scaling in flat space
Vitaly Vanchurin, Ken Olum, Alexander Vilenkin
We investigate the evolution of infinite strings as a part of a complete cosmic string network in flat space. We perform a simulation of the network which uses functional forms for…