Axial representation of external time-dependent electromagnetic fields for particle tracking in accelerators

Quantum response to time-dependent external fields

Recently, explicit real time dynamics has been studied in various systems. These quantum mechanical dynamics could provide new recipes in information processing. We study quantum dynamics under time dependent external fields, and explore how to control the quantum state, and also how to bring the state into a target state. Here, we investigate a pure quantum mechanical dynamics, dynamics in qua...

Particle production from axial fields

We study the production of massive fermions in arbitrary vector and axial-vector classical backgrounds using effective action techniques. A perturbative calculation shows the different features of each field and in particular it is seen that pure temporal axial fields can produce particles whereas it is not possible for a pure vector background. We also analyze from a non-perturbative point of ...

Path integral and pseudoclassical action for spinning particle in external electromagnetic and torsion fields

We study a possibility for pseudoclassical description of a spinning particle in external electromagnetic and torsion fields. To this end we depart from the Dirac equation in such a background and derive a path integral representation for the corresponding propagator. An effective action which appears in the representation is interpreted as a pseudoclassical action for the spinning particle. It...

Composite vector particles in external electromagnetic fields

Citation Davoudi, Zohreh, and William Detmold. "Composite vector particles in external electromagnetic fields. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Latt...

Planar Dirac Fermions in External Electromagnetic Fields