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아 래
1. 제목: Generalised cosmological scaling solutions in braneworld and their duality
properties
2. 연사: Lee, Seung Joo (University of Sussex/England)
3. 일시: 2006년 4월 28일(금요일) 오후 3시
4. 장소: 물리학과 세미나실(31355호실)
5. 초록: Motivated by the recent interest in cosmologies arising from energy density modifications to
the Friedmann equation, we analyze the scaling behavior for a broad class of these cosmologies
comprised of scalar fields and background barotropic fluid sources. In particular, we determine the
corresponding scalar field potentials which lead to attractor scaling solutions in a wide class of
braneworld and dark energy scenarios. We show how a number of recent proposals for modifying the
Friedmann equation can be thought of as being dual to one another, and determine the conditions
under which such dualities arise.
