Hawking Temperature in Taub-NUT (A)dS spaces via the Generalized Uncertainty Principle (2009)
Kouwn, Seyen, Lee, Chong Oh, Oh, Phillial
Using the extended forms of the Heisenberg uncertainty principle from string theory and the quantum gravity theory, we drived Hawking temperature of a Taub-Nut-(A)dS black hole. In spite of their...
Cardy-Verlinde Formula in Taub-NUT/Bolt-(A)dS space (2008)
We consider a finite action for a higher dimensional Taub-NUT/Bolt-(A)dS space via the so-called counter term subtraction method. In the limit of high temperature, we show that the Cardy-Verlinde...
3-dimensional holographic trace anomaly from AdS/CFT correspondence (2008)
We explicitly obtain energy-momentum tensor at the asymptotic 3-dimensional region of Schwarzschild AdS$_4$ and Taub-NUT-(A)dS$_4$ using the so-called `counter-term subtraction method' in...
Evolution of Tachyon Kink with Electric Field (2006)
Cho, Inyong, Kwon, O-Kab, Lee, Chong Oh
We investigate the decay of an inhomogeneous D1-brane wrapped on a $S^1$ with an electric field. The model that we consider consists of an array of tachyon kink and anti-kink with a constant electric...
Late Time Behaviors of an Inhomogeneous Rolling Tachyon (2006)
We study an inhomogeneous decay of an unstable D-brane in the context of Dirac-Born-Infeld~(DBI)-type effective action. We consider tachyon and electromagnetic fields with dependence of time and one...
BPS D-branes from an Unstable D-brane (2005)
Kim, Chanju, Kim, Yoonbai, Kwon, Hwang-hyun, Kwon, O-Kab, Lee, Chong Oh
We search for exact tachyon kink solutions of DBI type effective action describing an unstable D-brane with worldvolume gauge field turned in both the flat and a curved background. There are various...
Domain Walls in Noncommutative Field Theories (2004)
Kim, Yoonbai, Kwon, O-Kab, Lee, Chong Oh
We study kinks in a wide class of noncommutative (NC) field theories. We find rich structure of the static kinks in DBI type NC tachyon action for an unstable D$p$-brane with general constant open...
Unstable D-branes and String Cosmology (2004)
Kim, Chanju, Kim, Hang Bae, Kim, Yoonbai, Kwon, O-Kab, Lee, Chong Oh
Cosmological implication of rolling tachyons is reported in the context of effective field theory. With a brief review of rolling tachyons in both flat and curved spacetimes, we study the string...
Brane World of Warp Geometry: An Introductory Review (2003)
Kim, Yoonbai, Lee, Chong Oh, Lee, Ilbong, Lee, JungJai
Basic idea of Randall-Sundrum brane world model I and II is reviewed with detailed calculation. After introducing the brane world metric with exponential warp factor, metrics of Randall-Sundrum...
Tachyon Kinks on Unstable Dp-branes (2003)
Kim, Chanju, Kim, Yoonbai, Kwon, O-Kab, Lee, Chong Oh
In the context of tachyon effective theory coupled to Born-Infeld electromagnetic fields, we obtain all possible singularity-free static flat configurations of codimension one on unstable Dp-branes....
Kim, Chanju, Kim, Yoonbai, Lee, Chong Oh
We study Born-Infeld type tachyonic effective action of unstable D2-brane with a runaway potential and find rich structure of static regular solitonic solutions. There exists only periodic array of...