Production of Cosmological Observables During the Inflationary Epoch

This dissertation proposal explores the production of present day cosmological observables which might have been produced during the inflationary era. The first observable is the current net electric charge of our observable universe produced by charge fluctuations during inflation. Next, we examine the possibility of a signal in the primordial gravitational wave power spectrum produced by a scalar field with a time dependent mass. Finally, we examine primordial magnetic fields produced during inflation through the Ratra model coupling with the Schwinger effect

Vector Plot of Hemholtz Coil in Earth\u27s Magnetic Field

Even though a Helmholtz coil is used most often to cancel out the Earth\u27s magnetic field, the Earth\u27s and Helmholtz coil\u27s magnetic field components may not cancel out uniformly over all space. This is of significance if you wish to know how a finite magnetic object might react and align itself with such a field. This Demonstration enables you to clearly see the non-uniformity and off-axis magnetic field components, thus allowing you to determine how such an object might react. The symmetry axis of the Helmholtz coil is aligned with the Earth\u27s horizontal magnetic field. The coils are in the -plane with one centered at and the other separated by the radius of the coils centered at . The number of turns for the coils is initially set to 25 and the vacuum permeability is included in the equations as well. You can vary the radius of the coils, the current supplied to them, the number of turns in the coils, and the Earth\u27s field. All units are in the MKS system