22 Papers
27 Citations
Daeho Ro is an academic researcher from Asia Pacific Center for Theoretical Physics. The author has contributed to research in topics: Scalar field & Instanton. The author has an hindex of 6, co-authored 22 publications. Previous affiliations of Daeho Ro include Sogang University.
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Papers
Fubini instantons in curved space
TL;DR: In this article, the authors considered two different types of the tachyonic potential, one having only a quartic term and the other having both the quartic and quadratic terms, and showed that there exist several kinds of new O(4)-symmetric Fubini instanton solution, which are possible only if gravity is taken into account.
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c-theorem of the entanglement entropy
TL;DR: In this article, the renormalization group flow in a two-dimensional conformal field theory deformed by a relevant operator is investigated from a holographic point of view, and the c-function of the entanglement entropy along the RG flow analytically and numerically, which reproduces the expected central charges of UV and IR.
Quantum entanglement in inflationary cosmology
TL;DR: In this article, the authors investigated the time-dependent entanglement entropy in the AdS space with a dS boundary which represents an expanding spacetime and showed that the Ryu-Takayanagi formula, which is usually valid in the static spacetime, provides a leading contribution to the timedependent entropy.
Dilaton Field Released under Collision of Dilatonic Black Holes with Gauss-Bonnet Term
Bogeun Gwak,Daeho Ro +1 more
TL;DR: In this paper, the upper limit of the gravitational radiation released by two dilatonic black holes was investigated by analyzing the Gauss-Bonnet term, where the energy radiated by the dilaton hair is maximized when the horizon of one black hole is minimized for a fixed second.
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Quantum entanglement in inflationary cosmology
TL;DR: In this paper, the authors investigated the holographic quantum entanglement of a visible universe in an inflationary cosmology and showed that the quantum entagglement between the visible and invisible universes divided by the cosmic event horizon decreases monotonically in time.
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