4 papers
Non-Commutative Space-Times, Black Hole, and Elementary Particle
Mu- in Park
It is shown that elementary black hole can not be distinguished from an elementary particle in the non-commutative space-times (space/space and space/time) at the Planck scale. But…
Open and Closed Universes in Brane-World Cosmology
Hyeong-Chan Kim, Jae Hyung Yee, Mu-In Park
We find two types [called (S) and (A)] of new vacuum solutions of open, flat, and closed universes which are inflating in the brane-world scenario. We show that the warp factor of…
Use of Physical Variables in the Chern-Simons Theories
Mu-In Park
The use of the physical variables in the fashion of Dirac in the three-dimensional Chern-Simons theories is presented. Our previous results are reinterpreted in a new aspect.
(2+1)-Dimensional QED, Anomalous Surface-Term Contributions and Superconductivity
Mu-in Park
It is shown that (2+1)-dimensional QED reveals several unusual effects due to the surface-term contributions. It is also shown that this system provides a new pairing mechanism for…