3 papers
hep-th2011
Combinatorics in N = 1 Heterotic Vacua
Seung-Joo Lee
We briefly review an algorithmic strategy to explore the landscape of heterotic E8 \times E8 vacua, in the context of compactifying smooth Calabi-Yau three-folds with vector bundle…
astro-ph2004
Generalised cosmological scaling solutions
Edmund J. Copeland, Seung-Joo Lee, James E. Lidsey +1
Motivated by the recent interest in cosmologies arising from energy density modifications to the Friedmann equation, we analyse the scaling behaviour for a broad class of these cos…
astro-ph2004
Cosmological evolution of general scalar fields in a brane-world cosmology
Shuntaro Mizuno, Seung-Joo Lee, Edmund J. Copeland
We study the cosmology of a general scalar field and barotropic fluid during the early stage of a brane-world where the Friedmann constraint is dominated by the square of the energ…