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- H. W. Lee
- 1999

We study the gauge bosons coupled to spin 2 operators as the singleton fields in three-dimensional anti-de Sitter space(AdS3). One of these can be expressed in terms of a pair of dipole A and B which couple to D and C operators at timelike infinity of AdS3. These operators form the logarithmic conformal field theory(LCFT2). Using the correlation function… (More)

- H. W. Lee
- 2000

We discuss the Randall-Sundrum (RS) gauge in the brane-world. We begin with the de Donder gauge (transverse-tracefree) in five dimensions for comparison. One finds that h55 = 0 and h5μ has a tachyonic mass. Hence we have to set h5μ = 0. This leads to the RS gauge. It appears that the RS gauge is so restrictive for the five massless states, whereas it is… (More)

- Sunja Kim, Jin Seok Kim, Hagyung Lee
- Osong public health and research perspectives
- 2010

OBJECTIVES
Currently, the incidence of scrub typhus has increased in urban areas. In this study, we described the epidemiological characteristics of scrub typhus cases reported in the urban areas of Korea in 2009.
METHODS
We analysed the case investigation reports of scrub typhus cases that were collected in Korea in 2009. Specially, the different risk… (More)

- Y. S. Myung, H. W. Lee
- 2005

We study the wave equation for a massive scalar in three-dimensional AdS-black hole spacetimes to understand the unitarity issues in a semiclassical way. Here we introduce four interesting spacetimes: the non-rotating BTZ black hole (NBTZ), pure AdS spacetime (PADS), massless BTZ black hole (MBTZ), and extremal BTZ black hole (EBTZ). Our method is based on… (More)

- H. W. Lee
- 2008

We study the wave equation for a minimally coupled massive scalar in Ddimensional de Sitter space. We compute the absorption cross section to investigate its cosmological horizon in the southern diamond. By analogy of the quantum mechanics, it is found that there is no absorption in de Sitter space. This means that de Sitter space is usually in thermal… (More)

- H. W. Lee, Y. S. Myung, Jin Young Kim, D. K. Park
- 1997

We investigate the black string in the context of the string theories. It is shown that the graviton is the only propagating mode in the (2+1)– dimensional extremal black string background. Both the dilation and axion turn out to be non-propagating modes.

- H. W. Lee
- 2003

We study the dynamical behavior of the dilaton in the background of threedimensional Kerr-de Sitter space which is inspired from the low-energy string effective action. The Kerr-de Sitter space describes the gravitational background of a point particle whose mass and spin are given by 1−M and J and its curvature radius is given by l. In order to study the… (More)

- H. W. Lee
- 2000

We discuss the Randall-Sundrum (RS) choice for hMN in the brane-world. We begin with the de Donder gauge (transverse-tracefree) including scalar(h55), vector(h5μ) and tensor(hμν) in five dimensions for comparison. One finds that h55 = 0 and h5μ = 0. This leads to the RS choice. It appears that the RS choice is so restrictive for the five massless states,… (More)

- Hungsoo Kim, H. W. Lee, Y. S. Myung
- 2008

We study cosmological application of the holographic energy density in the Brans-Dicke theory. Considering the holographic energy density as a dynamical cosmological constant, it is more natural to study it in the Brans-Dicke theory than in general relativity. Solving the Friedmann and Brans-Dicke field equations numerically, we clarify the role of… (More)

- Jin Young Kim, H. W. Lee
- 1997

We study the Giddings–Strominger wormholes in string theories. We found a non–singular wormhole solution and analyzed the perturbation around this wormhole solution. We have used the bilinear action to obtain Schrödinger– type equation for perturbation fields assuming a linear relation between the perturbation fields. With this analysis, we found an… (More)