Vacuum Gauges and their Principles of Measurement

Theta Vacuum in Different Gauges

Theta Vacuum in Different Gauges

Theta vacuum in different gauges

In some recent papers it is claimed that the physical significance of the vacuum angle theta for QCD-like theories depends on the chosen gauge condition. We criticise the arguments that were given in support of this claim, and show by explicit construction for the case of QED 2 that and why they fail, confirming thereby the commonly accepted point of view.

architecture and engineering of nanoscale sculptured thin films and determination of their properties

چکیده ندارد.

Gauges, Holes, and Their 'connections'

The purpose of this paper is to present a generalized hole argument for gauge field theories and their geometrical setting in terms of fiber bundles. The generalized hole argument is motivated and extended from the spacetime hole arguments which appear in spacetime theories based on differentiable manifolds such as general relativity. Analogously, the generalized hole argument rules out fiber b...