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gr-qc1997★ 19 cited
States insensitive to the Unruh effect in multi-level detectors
Karl-Peter Marzlin, J"urgen Audretsch
We give a general treatment of the spontaneous excitation rates and the non-relativistic Lamb shift of constantly accelerated multi-level atoms as a model for multi-level detectors…
gr-qc1993★ 11 cited
Topological Defects in Gravitational Theories with Non Linear Lagrangians
J. Audretsch, A. Economou, C. O. Lousto
The gravitational field of monopoles, cosmic strings and domain walls is studied in the quadratic gravitational theory with , and is compared with the result in…