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- Korea Institute for Advanced StudyKR14 papers
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4 papers · 1 filter
Noncommutative BTZ Black Hole in Polar Coordinates
Ee Chang-Young, Daeho Lee, Youngone Lee
Based on the equivalence between the three dimensional gravity and the Chern-Simons theory, we obtain a noncommutative BTZ black hole solution as a solution of $U(1,1)\times U(1,1)…
Cosmological Imprint of the Second Law of Thermodynamics
Hyeong-Chan Kim, Jae-Weon Lee, Jungjai Lee
We study the evolution of the universe in the presence of inflaton, matter, radiation, and holographic dark energy. The time evolution of the scale factor is obtained by solving th…
Is dark energy from cosmic Hawking radiation?
Jae-Weon Lee, Hyeong-Chan Kim, Jungjai Lee
It is suggested that dark energy is the energy of the Hawking radiation from a cosmic horizon. Despite of its extremely low Gibbons-Hawking temperature, this radiation could have t…
Geometrical properties of the trans-spherical solutions in higher dimensions
Gungwon Kang, Hyeong-Chan Kim, Jungjai Lee
We investigate the geometrical properties of static vacuum -brane solutions of Einstein gravity in dimensions, which have spherical symmetry of orthogonal to…