author = "Westman, H."
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Encontrado 6 documentos, página mostrada 1 de 1

Exploring Cartan gravity with dynamical symmetry breaking

Author(s): Westman, H. , Zlosnik, T.
Description: 24 pags.; 2 figs.; 3 app. PACS number: 04.50.+h , It has been known for some time that General Relativity can be regarded as a Yang-Mills-type gauge theory in a symmetry broken phase. In this picture the gravity sector is described by an SO(1, 4) or SO(2, 3) gauge field and Higgs field Va which acts to...
Language(s): Inglés

Local quanta, unitary inequivalence, and vacuum entanglement

Description: 28 pags.; 8 figs. , © 2014 Elsevier Inc. In this work we develop a formalism for describing localised quanta for a real-valued Klein-Gordon field in a one-dimensional box [0, R]. We quantise the field using non-stationary local modes which, at some arbitrarily chosen initial time, are completely locali...
Language(s): Inglés

WKB analysis of relativistic Stern-Gerlach measurements

Description: Spin is an important quantum degree of freedom in relativistic quantum information theory. This paper provides a first-principles derivation of the observable corresponding to a Stern-Gerlach measurement with relativistic particle velocity. The specific mathematical form of the Stern-Gerlach operato...
Language(s): Inglés

An introduction to the physics of Cartan gravity

Description: 47 págs.; 11 figs.; 5 apps. , © 2015 Elsevier Inc.. A distance can be measured by monitoring how much a wheel has rotated when rolled without slipping. This simple idea underlies the mathematics of Cartan geometry. The Cartan-geometric description of gravity consists of a SO(1, 4) gauge connection A AB...
Language(s): Inglés

Cosmological signature change in Cartan gravity with dynamical symmetry breaking

Description: 18 pags.; 5 figs.; 3 apps. PACS numbers: 04.50.Kd , We investigate the possibility for classical metric signature change in a straightforward generalization of the first-order formulation of gravity, dubbed >Cartan gravity.> The mathematical structure of this theory mimics the electroweak theory in tha...
Language(s): Inglés

What does it mean for half of an empty cavity to be full?

Description: 21 págs.; 8 figs.; 2 app.; PACS numbers: 03.67.Bg, 03.70.+k, 11.10.-z , © 2015 American Physical Society. It is well known that the vacuum state of a quantum field is spatially entangled. This is true in both free and confined spaces, for example, in an optical cavity. The obvious consequence of this, ...
Language(s): Inglés
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Encontrado 6 documentos, página mostrada 1 de 1

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