373 research outputs found
School Expansion among Independent Schools in Hawaiâi: Negotiating and Leading Organizational Change.
Ed.D. Thesis. University of HawaiÊ»i at MÄnoa 2017
Large N reduction for Chern-Simons theory on S^3
We study a matrix model which is obtained by dimensional reduction of
Chern-Simon theory on S^3 to zero dimension. We find that expanded around a
particular background consisting of multiple fuzzy spheres, it reproduces the
original theory on S^3 in the planar limit. This is viewed as a new type of the
large N reduction generalized to curved space.Comment: 4 pages, 2 figures, references added, typos correcte
Large N reduction on group manifolds
We show that the large N reduction holds on group manifolds. Large N field
theories defined on group manifolds are equivalent to some corresponding matrix
models. For instance, gauge theories on S^3 can be regularized in a gauge
invariant and SO(4) invariant manner.Comment: 21 pages, 4 figures, typos corrected, a reference adde
M5-brane Effective Action as an On-shell Action in Supergravity
We show that the covariant effective action for M5-brane is a solution to the
Hamilton-Jacobi (H-J) equations of 11-dimensional supergravity. The solution to
the H-J equations reproduces the supergravity solution that represents the
M2-M5 bound states.Comment: 20 pages, references added, typos correcte
Deconfinement phase transition in N=4 super Yang-Mills theory on RxS^3 from supersymmetric matrix quantum mechanics
We test the recent claim that supersymmetric matrix quantum mechanics with
mass deformation preserving maximal supersymmetry can be used to study N=4
super Yang-Mills theory on RxS^3 in the planar limit. When the mass parameter
is large, we can integrate out all the massive fluctuations around a particular
classical solution, which corresponds to RxS^3. The resulting effective theory
for the gauge field moduli at finite temperature is studied both analytically
and numerically, and shown to reproduce the deconfinement phase transition in
N=4 super Yang-Mills theory on RxS^3 at weak coupling. This transition was
speculated to be a continuation of the conjectured phase transition at strong
coupling, which corresponds to the Hawking-Page transition based on the
gauge-gravity duality. By choosing a different classical solution of the same
model, one can also reproduce results for gauge theories on other space-time
such as RxS^3/Z_q and RxS^2. All these theories can be studied at strong
coupling by the new simulation method, which was used successfully for
supersymmetric matrix quantum mechanics without mass deformation.Comment: REVTeX4, 4 pages, 1 figure, typos correcte
Towards New Half-Metallic Systems: Zinc-Blende Compounds of Transition Elements with N, P, As, Sb, S, Se, and Te
We report systematic first-principles calculations for ordered zinc-blende
compounds of the transition metal elements V, Cr, Mn with the sp elements N, P,
As, Sb, S, Se, Te, motivated by recent fabrication of zinc-blende CrAs, CrSb,
and MnAs. They show ferromagnetic half-metallic behavior for a wide range of
lattice constants. We discuss the origin and trends of half-metallicity,
present the calculated equilibrium lattice constants, and examine the
half-metallic behavior of their transition element terminated (001) surfaces.Comment: 2nd Version: lattice constants calculations added, text revise
N=4 Super Yang-Mills from the Plane Wave Matrix Model
We propose a nonperturbative definition of N=4 super Yang-Mills (SYM). We
realize N=4 SYM on RxS^3 as the theory around a vacuum of the plane wave matrix
model. Our regularization preserves sixteen supersymmetries and the gauge
symmetry. We perform the 1-loop calculation to give evidences that the
superconformal symmetry is restored in the continuum limit.Comment: 39 pages, 6 figures, some sentences are improved, references added,
typos corrected, version to appear in PR
Testing a novel large-N reduction for N=4 super Yang-Mills theory on RxS^3
Recently a novel large-N reduction has been proposed as a maximally
supersymmetric regularization of N=4 super Yang-Mills theory on RxS^3 in the
planar limit. This proposal, if it works, will enable us to study the theory
non-perturbatively on a computer, and hence to test the AdS/CFT correspondence
analogously to the recent works on the D0-brane system. We provide a nontrivial
check of this proposal by performing explicit calculations in the large-N
reduced model, which is nothing but the so-called plane wave matrix model,
around a particular stable vacuum corresponding to RxS^3. At finite temperature
and at weak coupling, we reproduce precisely the deconfinement phase transition
in the N=4 super Yang-Mills theory on RxS^3. This phase transition is
considered to continue to the strongly coupled regime, where it corresponds to
the Hawking-Page transition on the AdS side. We also perform calculations
around other stable vacua, and reproduce the phase transition in super
Yang-Mills theory on the corresponding curved space-times such as RxS^3/Z_q and
RxS^2.Comment: 24 pages, 4 figure
Regulatory Approaches to Managing Skilled Migration: Indonesian Nurses in Japan
This article examines the JapanâIndonesia Economic Partnership Agreement, an agreement that has allowed Japan to supplement its local healthcare workforce while continuing to sidestep the thorny issue of labour and immigration policy reform and Indonesia to increase its skilled workersâ access to the Japanese labour market at a time when it was making a concerted effort to reorient migrant labour flows away from informal sector occupations. Despite the programmeâs many problems, it has contributed to the use of trade agreements as a mechanism for regulating labour migration, and so to the normalisation of migrant labour as a tradable commodity rather than a discrete area of policy-making, with all the attendant risks that normalisation brings
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