Publications (47)
Near-Horizon Conformal Symmetry and Black Hole Entropy in Any Dimension
Gungwon Kang, Jun-ichirou Koga, Mu-In Park
Recently, Carlip proposed a derivation of the entropy of the two-dimensional dilatonic black hole by investigating the Virasoro algebra associated with a newly introduced near-hori…
Non-Abelian Proca model based on the improved BFT formalism
Mu-In Park, Young-Jai Park
We present the newly improved Batalin-Fradkin-Tyutin (BFT) Hamiltonian formalism and the generalization to the Lagrangian formulation, which provide the much more simple and transp…
Note on the Abelian Pure CS Theory Based on the Improved BFT Method
Mu-In Park, Young-Jai Park
We reconsider the Abelian pure Chern-Simons theory in three dimensions by using our improved Batalin-Fradkin-Tyutin Hamiltonian formalism. As a result, we show several novel featur…
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.
Fate of Three-Dimensional Black Holes Coupled to a Scalar Field and the Bekenstein-Hawking Entropy
Mu-In Park
Three-dimensional black holes coupled to a self-interacting scalar field is considered. It is known that its statistical entropy Strominger does agree with the Bekens…
No Scalar-Haired Cauchy Horizon Theorem in Charged Gauss-Bonnet Black Holes
Deniz O. Devecioglu, Mu-In Park
Recently, a ``no inner (Cauchy) horizon theorem" for static black holes with non-trivial scalar hairs has been proved in Einstein-Maxwell-scalar theories and also in Einstein-Maxwe…
A New Extension of HoÅava-Lifshitz Gravity and Curing Pathologies of the Scalar Graviton
Taeyoon Moon, Phillial Oh, Mu-In Park
We consider an extension of the HoÅava-Lifshitz gravity with extra conformal symmetry by introducing a scalar field with higher order curvature terms. Relaxing the exact local Wey…
The Quantization of the Chiral Schwinger Model based on the BFT-BFV formalism
Won Tae Kim, Yong-Wan Kim, Mu-In Park +2
We apply newly improved Batalin-Fradkin-Tyutin Hamiltonian method to the chiral Schwinger Model in the case of the regularization ambiguity . We show that one can systematical…
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…
Black Hole as a Wormhole Factory
Sung-Won Kim, Mu-In Park
On general grounds, one may argue that a black hole stops radiation at the Planck mass, where the radiated energy is comparable to the black hole's mass. And also, it has been argu…
The Rotating Black Hole in Renormalizable Quantum Gravity: The Three-Dimensional HoÅava Gravity Case
Mu-In Park
Recently HoÅava proposed a renormalizable quantum gravity, without the ghost problem, by abandoning Einstein's equal-footing treatment of space and time through the anisotropic sc…
On Gauge Invariant Cosmological Perturbations in UV-modified Horava Gravity
Sunyoung Shin, Mu-In Park
We consider gauge invariant cosmological perturbations in UV-modified, z=3 Horava gravity with one scalar matter field, which has been proposed as a renormalizable gravity theory w…
Statistical Entropy of Three-dimensional Kerr-De Sitter Space
Mu-In Park
I consider the (2+1)-dimensional Kerr-De Sitter space and its statistical entropy computation. It is shown that this space has only one (cosmological) event horizon and there is a…
Symmetry Algebras in Chern-Simons Theories with Boundary: Canonical Approach
Mu-In Park
I consider the classical Kac-Moody algebra and Virasoro algebra in Chern-Simons theory with boundary within the Dirac's canonical method and Noether procedure. It is shown that the…
Smeared BTZ Black Hole from Space Noncommutativity
Hyeong-Chan Kim, Mu-In Park, Chaiho Rim +1
We study a novel phenomena of smearing of black hole horizons from the effect of space noncommutativity. We present an explicit example in space, using the Chern-Simons for…
Horava Stars Revisited: New Phases of Incompressible Stars and Black Holes, and Buchdahl's Theorem
Mu-In Park
I study a particular exact solution for static stars in four-dimensional non-projectable Horava gravity, which has been proposed as a renormalizable gravity model without the ghost…
Symplectic Reduction and Symmetry Algebra in Boundary Chern-Simons theory
Phillial Oh, Mu-In Park
We derive the Kac-Moody algebra and Virasoro algebra in Chern-Simons theory with boundary by using the symplectic reduction method and the Noether procedures.
Operator Ordering Problem of the Nonrelativistic Chern-Simons Theory
Mu-In Park, Young-Jai Park
The operator ordering problem due to the quantization or regularization ambiguity in the Chern-Simons theory exists. However, we show that this can be avoided if we require Galilei…
Quasi-Normal Modes and Stability of Einstein-Born-Infeld Black Holes in de Sitter Space
Chong Oh Lee, Jin Young Kim, Mu-In Park
We study gravitational perturbations of electrically charged black holes in (3+1)-dimensional Einstein-Born-Infeld gravity with a positive cosmological constant. For the axial pert…
Complete Classification of Four-Dimensional Black Hole and Membrane Solutions in IR-modified HoÅava Gravity
Carlos Argüelles, Nicolás Grandi, Mu-In Park
HoÅava gravity has been proposed as a renormalizable, higher-derivative gravity without ghost problems, by considering different scaling dimensions for space and time. In the non-…
Comments on "Entropy of 2D Black Holes from Counting Microstates"
Mu-In Park, Jae Hyung Yee
In a recent letter, Cadoni and Mignemi proposed a formulation for the statistical computation of the 2D black holes entropy. We present a criticism about their formulation.
Thermodynamics of Exotic Black Holes, Negative Temperature, and Bekenstein-Hawking Entropy
Mu-In Park
Recently, exotic black holes whose masses and angular momenta are interchanged have been found, and it is known that their entropies depend only on the horizon areas. But a…
Symmetries and Conservation Laws in Horava Gravity
Deniz O. Devecioglu, Mu-In Park
Horava gravity has been proposed as a renormalizable quantum gravity without the ghost problem through anisotropic scaling dimensions which break Lorentz symmetry in UV. In the Ham…
Multigluon amplitudes, constraints and the WZW model
Yasuhiro Abe, V. P. Nair, Mu-In Park
Classical Yang-Mills theory is defined by the superspace constraints. We obtain a solution of a subset of these constraints and show that it leads to the maximally hel…
The Role of Angular Momentum and Cosmic Censorship in the (2+1)-Dimensional Rotating Shell Collapse
Robert B. Mann, John J. Oh, Mu-In Park
We study the gravitational collapse problem of rotating shells in three-dimensional Einstein gravity with and without a cosmological constant. Taking the exterior and interior metr…
Zero-Mass Rotating Spacetimes in Four-Dimensional Horava Gravity
Mu-In Park, Hyung Won Lee
We study a particular exact solution for rotating spacetimes in four-dimensional Horava gravity, which has been proposed as a renormalizable gravity model without the ghost problem…
Rotating Black Holes in a Viable Lorentz-Violating Gravity: Finding Exact Solutions Without Tears
Deniz O. Devecioglu, Mu-In Park
We introduce a two-step procedure for finding Kerr-type rotating black hole solutions without tears. Considering the low-energy sector of Horava gravity as a viable Lorentz-violati…
No Scalar-Haired Cauchy Horizon Theorem in Einstein-Maxwell-Horndeski Theories
Deniz O. Devecioglu, Mu-In Park
Recently, a no inner (Cauchy) horizon theorem for static black holes with non-trivial scalar hairs has been proved in Einstein-Maxwell-scalar theories. In this paper, we extend the…
On Gauge Invariant Cosmological Perturbations in UV-modified Horava Gravity: A Brief Introduction
Mu-In Park
We revisit gauge invariant cosmological perturbations in UV-modified, z = 3 Horava gravity with one scalar matter field, which has been proposed as a renormalizable gravity theory…
New Gauge Invariant Formulation of the Chern-Simons Gauge Theory: Classical and Quantal Analysis
Mu-In Park, Young-Jai Park
Recently proposed new gauge invariant formulation of the Chern-Simons gauge theory is considered in detail. This formulation is consistent with the gauge fixed formulation. Further…
New agegraphic dark energy model with generalized uncertainty principle
Yong-Wan Kim, Hyung Won Lee, Yun Soo Myung +1
We investigate the new agegraphic dark energy models with generalized uncertainty principle (GUP). It turns out that although the GUP affects the early universe, it does not change…
The quantization of the chiral Schwinger model based on the BFT-BFV formalism II
Mu-In Park, Young-Jai Park, Sean J. Yoon
We apply an improved version of Batalin-Fradkin-Tyutin (BFT) Hamiltonian method to the a=1 chiral Schwinger Model, which is much more nontrivial than the a>1.$ one. Furthermore, th…
Rotating Black Holes in Three-Dimensional Horava Gravity Revisited
Mu-In Park
I revisit rotating black hole solutions in three-dimensional Horava gravity with z = 2 as a simpler set-up of the renormalizable quantum gravity `a la Lifshitz and DeWitt. The solu…
The Hamiltonian Dynamics of Horava Gravity
Deniz O. Devecioglu, Mu-In Park
We consider the Hamiltonian formulation of Horava gravity in arbitrary dimensions, which has been proposed as a renormalizable gravity model for quantum gravity without the ghost p…
New Gauge Invariant Formulation of the Chern-Simons Gauge Theory
Mu-In Park, Young-Jai Park
A new gauge invariant formulation of the relativistic scalar field interacting with Chern-Simons gauge fields is considered. This formulation is consistent with the gauge fixed for…
A New Test of Dynamical Dark Energy Models and Cosmic Tensions in HoÅava Gravity
Eleonora Di Valentino, Nils A. Nilsson, Mu-In Park
Horava gravity has been proposed as a renormalizable, higher-derivative, Lorentz-violating quantum gravity model without ghost problems. A Horava gravity based dark energy (HDE) mo…
Investigation on the Tachyonic Neutrino
Mu-In Park, Young-Jai Park
According to the experimental data, it is still controversial whether the neutrinos, especially the electron-neutrino and muon-neutrino, can be considered as the fermionic spinoria…
Testing Holographic Principle from Logarithmic and Higher Order Corrections to Black Hole Entropy
Mu-In Park
The holographic principle is tested by examining the logarithmic and higher order corrections to the Bekenstein-Hawking entropy of black holes. For the BTZ black hole, I find some…
Tests of Standard Cosmology in Horava Gravity and Bayesian Evidence for a Closed Universe, and the Hubble Tension
Nils A. Nilsson, Mu-In Park
We consider some background tests of standard cosmology in the context of Horava gravity with different scaling dimensions for space and time, which has been proposed as a renormal…
On Birkhoff's Theorem in Horava Gravity
Deniz O. Devecioglu, Mu-In Park
We study Birkhoff's theorem, which states the absence of time-dependent, spherically symmetric vacuum solutions in four-dimensional Horava gravity, which has been proposed as a ren…
Chronology Protection of Rotating Black Holes in a Viable Lorentz-Violating Gravity
Mu-In Park, Hideki Maeda
We study causal properties of the recently found rotating black-hole solution in the low-energy sector of Horava gravity as a viable Lorentz-violating (LV) gravity in four dimensio…
On the Foundation of the Relativistic Dynamics with the Tachyon
Mu-In Park, Young-Jai Park
The theoretical foundation of the object moving faster than light in vacuum ({\it tachyon}) is still missing or incomplete. Here we present the classical foundation of the relativi…
On a New Approach for Constructing Wormholes in Einstein-Born-Infeld Gravity
Jin Young Kim, Mu-In Park
We study a new approach for the wormhole construction in Einstein-Born-Infeld gravity, which does not require exotic matters in the Einstein equation. The Born-Infeld field equatio…
BRST Quantization of the Proca Model based on the BFT and the BFV Formalism
Yong-Wan Kim, Mu-In Park, Young-Jai Park +1
The BRST quantization of the Abelian Proca model is performed using the Batalin-Fradkin-Tyutin and the Batalin-Fradkin-Vilkovisky formalism. First, the BFT Hamiltonian method is ap…
The Final State of Black Strings and p-Branes, and the Gregory-Laflamme Instability
Mu-In Park
It is shown that the usual entropy argument for the Gregory-Laflamme (GL) instability for appropriate black strings and -branes gives surprising agreement up to a few per…
Comments on `` Black Hole Entropy from Conformal Field Theory in Any Dimension ''
Mu-In Park, Jeongwon Ho
In a recent letter, Carlip proposed a generalization of the Brown-Henneaux-Strominger construction to any dimension. We present two criticisms about his formulation.
Quasi-Normal Modes of a Natural AdS Wormhole in Einstein-Born-Infeld Gravity
Jin Young Kim, Chong Oh Lee, Mu-In Park
We study the matter perturbations of a new AdS wormhole in (3+1)-dimensional Einstein-Born-Infeld gravity, called "natural wormhole", which does not require exotic matters. We disc…