نتایج جستجو برای: mathcall gauge space

تعداد نتایج: 539288  

1998
Carlo Becchi Stefano Giusto

We discuss the formal structure of a functional measure for Gauge Theories preserving the Slavnov-Taylor identity in the presence of Gribov horizons. Our construction defines a gauge-fixed measure in the framework of the lattice regularization by dividing the configuration space into patches with different gauge-fixing prescriptions. Taking into account the bounds described by Dell’Antonio and ...

2015
Hiroaki Matsunaga

We complete the construction of a gauge-invariant action for NS-NS superstring field theory in the large Hilbert space begun in arXiv:1305.3893 by giving a closedform expression for the action and nonlinear gauge transformations. The action has the WZW-like form and vertices are given by a pure-gauge solution of NS heterotic string field theory in the small Hilbert space of right movers.

Journal: :journal of dental research, dental clinics, dental prospects 0
amir mohammadi seyyed hossein moslemzadeh

background and aims: to obtain maximum advantages from orthodontic fixed appliances and to achieve the desired final occlusion, correct bracket positioning is highly necessary. in order to measure and determine bracket’s height, diverse gauges have been used. the objective of the present study is to determine and compare bracket positioning accuracy by using height bracket positioning gauge (hb...

2004
J. M. PONS D. C. SALISBURY

It still not universally recognized that all the gauge symmetries present in the Lagrangian formalism for a physical theory must also manifest themselves in the canonical formalism. This issue has been particularly obscure and controversial in the case of generally covariant theories, where the full realization of the di eomorphisms-induced gauge group in phase space has met with the di culty o...

1998
A. De Castro

A canonical action describing the interaction of chiral gauge fields in D = 6 Minkowski space-time is constructed. In a particular partial gauge fixing it reduces to the action found by Perry and Schwarz. The additional gauge symmetries are used to show the off-shell equivalence of the dimensional reduction to D = 5 Minkowski space-time of the chiral gauge field canonical action and the Born-In...

2008
Felix Finster

We define operator manifolds as manifolds on which a spectral measure on a Hilbert space is given as additional structure. The spectral measure mathematically describes space as a quantum mechanical observable. We show that the vectors of the Hilbert space can be represented as functions on the manifold. The arbitrariness of this representation is interpreted as local gauge freedom. In this way...

2008
Luis Alvarez-Gaume

In this note we present a operator formulation of gauge theories in a quantum phase space which is specified by a operator algebra. For simplicity we work with the Heisenberg algebra. We introduce the notion of the derivative (transport) and Wilson line (parallel transport) which enables us to construct a gauge theory in a simple way. We illustrate the formulation by a discussion of the Higgs m...

2002
Alex Buchel

We discuss Gubser-Klebanov-Polyakov proposal for the gauge/string theory correspondence for gauge theories in curved space. Specifically, we consider KlebanovTseytlin cascading gauge theory compactified on S. We explain regime when this gauge theory is a small deformation of the superconformal N = 1 gauge theory on the world volume of regular D3-branes at the tip of the conifold. We study close...

1999
D. Olivié

A gauge transformation in quantum electrodynamics involves the product of field operators at the same space-time point and hence does not have a well-defined meaning. One way to avoid this difficulty is to generalize the gauge transformation by using different space-time points in the spirit of Dirac's point splitting. Such a generalization indeed exists and the resulting generalized infinitesi...

1993
Alberto Saa

Gauge fields are described on an Riemann-Cartan space-time by means of tensorvalued differential forms and exterior calculus. It is shown that minimal coupling procedure leads to a gauge invariant theory where gauge fields interact with torsion, and that consistency conditions for the gauge fields impose restrictions in the nonRiemannian structure of space-time. The new results differ from the ...

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