Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 10 of 10 for “"stress-energy tensor"”.
-
Improvement of Stress -Energy Tensor Using Space -Time Symmetries
… it is always possible to improve the symmetric stress-energy tensor of a renormalizable relativistic field theory over (3+1)-dimensional flat space-time manifold. The improved stress-energy tensor defines the same field energy-momentum and angular momentum as the conventional tensor, and it is …
-
Improvement of stress-energy tensor using space-time symmetries
… it is always possible to improve the symmetric stress-energy tensor of a renormalizable relativistic field theory over (3+1)-dimensional flat space-time manifold. The improved stress-energy tensor defines the same field energy-momentum and angular momentum as the conventional tensor, and it is …
-
Quantum Effects of the Massless Spin One-Half Field in Static Spherically Symmetric Black Hole and Wormhole Spacetimes
The full renormalized stress-energy tensor for the massless spin one-half field is numerically computed on and outside the event horizon of an extreme Reissner-Nordstrom black hole and on and outside the throat of three static spherically symmetric Lorentzian wormhole spacetimes. The field and all …
-
The trial of the holographic principle
… to a hydrodynamical expansion of the stress-energy tensor of the dual fluid. The stress-energy tensor of the dual fluid, whose conservation arises as a consequence of Einstein field equations of the dual black hole, is calculated via the Brown-York prescription augmented with …
-
Even Parity Perturbations of the Janis-Newman-Winicour Singularity
… to the metric can be decomposed using tensor spherical harmonics and Fourier decomposition, and are further reduced by gauge transformations. By calculating the Einstein field equations and the divergence of the stress-energy tensor, one obtains 8 independent radial equations for the …
-
Probabilistic Schwarzian Field Theory
… disc. It is also expected to arise in the low energy limit of the Sachdev--Ye--Kitaev random matrix model. In Chapter 2 we rigorously construct a finite measure on $\Diff^1(\T)/\SL(2, \R)$, which corresponds to the Schwarzian Theory and compute its partition function (i.e. total mass). Here …
-
Electron Beam Machine for Continuous Metallurgical Processes
… Additionally a method for generating the stress-energy tensor of a given system is presented, and derived for the generalised theory. Its advantages are shown to be numerous, The prediction of electron beam behaviour in electromagnetic fields is reduced to that of simultaneously solving a …
-
Probes of strong-field gravity
… of this thesis is a study of the propagation and energy content of gravitational waves in these theories. I find that in a large class of theories, approaching the asymptotically at part of spacetime, gravitational waves propagate in the same fashion as in GR and have the same effective …
-
Universal properties of the entanglement entropy in quantum integrable models
… function of the twist field and the trace of the stress-energy tensor. This allows us to introduce a class of composite twist fields, which were the main topic of Levi [2012]. In the fifth and last chapter we group the most common methods used to study the entanglement entropy of quantum spin …
-
On Gaussian multiplicative chaos and conformal field theory
… in the context of symplectic geometry and the stress-energy tensor emerges in connection with the momentum map for the Diff(S^1)-action.