LASED: A Laser-Atom Interaction Simulator derived from Quantum Electrodynamics

Abstract

A laser-atom interaction simulator derived from quantum electrodynamics (LASED) is presented, which has been developed in the python programming language. LASED allows a user to calculate the time evolution of a laser-excited atomic system. The model allows for any laser polarization, a Gaussian laser beam profile, a rotation of the reference frame chosen to define the states, and an averaging over the Doppler profile of an atomic beam. Examples of simulations using LASED are presented for excitation of calcium from the 4${}^1{S}_0$ state to the 4${}^1{P}_1$ state, for excitation from the helium 3${}^1{D}_2$ state excited by electron impact to the 10${}^1{P}_1$ state, and for laser excitation of caesium via the $D_2$ line.

15 pages, 8 figures, for source code go to https://github.com/mvpmanish/LASED. Changes in v3: changed title, added more references, changed comparison of this simulator to other laser-atom simulators, corrected formatting errors, added to Fig.6, added appendix C. Changes in v4: corrected Eq. 24

References in corpus (5)

• Array Programming with NumPy
• Large Momentum Transfer Clock Atom Interferometry on the 689 nm Intercombination Line of Strontium
• ARC 3.0: An expanded Python toolbox for atomic physics calculations
• Direct laser cooling to Bose-Einstein condensation in a dipole trap
• PyLCP: A python package for computing laser cooling physics

Cited by in corpus (1)

• RydIQule: A Graph-based Paradigm for Modelling Rydberg and Atomic Systems