Quantum Back Reaction to asymptotically AdS Black Holes (2009)
Kashiyama, Kazumi, Tanahashi, Norihiro, Flachi, Antonino, Tanaka, Takahiro
We analyze the effects of the back reaction due to a conformal field theory (CFT) on a black hole spacetime with negative cosmological constant. We study the geometry numerically obtained by taking...
Search for the IR fixed point in the twisted Polyakov loop scheme (2009)
Bilgici, Erek, Flachi, Antonino, Itou, Etsuko, Kurachi, Masafumi, Lin, C. -J. David, Matsufuru, Hideo, ...
We present a non-perturbative study of the running coupling constant in the Twisted Polyakov Loop (TPL) scheme. We investigate how the systematic and statistical errors can be controlled {\it via} a...
Thickness perturbations and topology change transitions in brane - black hole systems (2009)
Czinner, Viktor G., Flachi, Antonino
We consider thickness perturbations to static, axisymmetric Dirac-Nambu-Goto membranes embedded into a spherically symmetric black hole spacetime with arbitrary number of dimensions. Since the next...
Casimir Effect on the brane (2009)
Flachi, Antonino, Tanaka, Takahiro
We consider the Casimir effect between two parallel plates localized on a brane. In order to properly compute the contribution to the Casimir energy due to any higher dimensional field, it is...
Field localization on a brane intersection in anti-de Sitter spacetime (2009)
Flachi, Antonino, Minamitsuji, Masato
We discuss the localization of scalar, fermion, and gauge field zero modes on a $3-$brane that resides at the intersection of two $4-$branes in six-dimensional anti-de Sitter space. This set-up has...
A new scheme for the running coupling constant in gauge theories using Wilson loops (2009)
Bilgici, Erek, Flachi, Antonino, Itou, Etsuko, Kurachi, Masafumi, Lin, C. -J David, Matsufuru, Hideo, ...
We propose a new renormalization scheme of the running coupling constant in general gauge theories using the Wilson loops. The renormalized coupling constant is obtained from the Creutz ratio in...
Spin Polarization Effects in Micro Black Hole Evaporation (2008)
Flachi, Antonino, Sasaki, Misao, Tanaka, Takahiro
We consider the evaporation of rotating micro black holes produced in highly energetic particle collisions, taking into account the polarization due to the coupling between the spin of the emitted...
A New Method of Calculating the Running Coupling Constant (2008)
Bilgici, Erek, Flachi, Antonino, Itou, Etsuko, Kurachi, Masafumi, Lin, C. -J David, Matsufuru, Hideo, ...
We propose a new method to compute the running coupling constant of gauge theories on the lattice. We first give the definition of the running coupling in the new scheme using the Wilson loops in a...
Vacuum polarization in asymptotically anti-de Sitter black hole geometries (2008)
Flachi, Antonino, Tanaka, Takahiro
We study the polarization of the vacuum for a scalar field, $$, on an asymptotically anti-de Sitter black hole geometry. The method we follow uses the WKB analytic expansion and point-splitting...
Branes and Black holes in Collision (2007)
Flachi, Antonino, Tanaka, Takahiro
We study the collision of a brane with a black hole. Our aim is to explore the topology changing process of perforation of a brane. The brane is described as a field theoretical domain wall in the...
Critical escape velocity of black holes from branes (2006)
Flachi, Antonino, Pujolas, Oriol, Sasaki, Misao, Tanaka, Takahiro
In recent work we have shown that a black hole stacked on a brane escapes once it acquires a recoil velocity. This result was obtained in the {\it probe-brane} approximation, {\it i.e.}, when the...
Dynamics of domain walls intersecting black holes (2006)
Flachi, Antonino, Pujolas, Oriol, Sasaki, Misao, Tanaka, Takahiro
Previous studies concerning the interaction of branes and black holes suggested that a small black hole intersecting a brane may escape via a mechanism of reconnection. Here we consider this problem...
Escape of black holes from the brane (2005)
Flachi, Antonino, Tanaka, Takahiro
TeV-scale gravity theories allow the possibility of producing small black holes at energies that soon will be explored at the LHC or at the Auger observatory. One of the expected signatures is the...
Zeta Functions in Brane World Cosmology (2004)
Flachi, Antonino, Knapman, Alan, Naylor, Wade, Sasaki, Misao
We present a calculation of the zeta function and of the functional determinant for a Laplace-type differential operator, corresponding to a scalar field in a higher dimensional de Sitter brane...
Moduli stabilization in higher dimensional brane models (2003)
Flachi, Antonino, Garriga, Jaume, Pujolas, Oriol, Tanaka, Takahiro
We consider a class of warped higher dimensional brane models with topology $M \times \Sigma \times S^1/Z_2$, where $\Sigma$ is a $D_2$ dimensional manifold. Two branes of codimension one are...
Quantized bulk fermions in the Randall-Sundrum brane model (2001)
Flachi, Antonino, Moss, Ian G, Toms, David J
The lowest order quantum corrections to the effective action arising from quantized massive fermion fields in the Randall-Sundrum background spacetime are computed. The boundary conditions and their...
Fermion vacuum energies in brane world models (2001)
Flachi, Antonino, Moss, Ian G., Toms, David J.
The fermion representations and boundary conditions in five dimensional anti de Sitter space are described in detail. In each case the one loop effective action is calculated for massless fermions....