Atomic Theory

The Atomic Theory

The idea that the elements are capable of being split up into very tiny particles was first evolved by the Greeks. The word atom comes from the greek word atomos which means indivisible and the idea that the elements are made up of atoms is called the atomic theory. A scientific theory is a scientific idea which has been accepted by scientists after due consideration. When an idea is first prop...

Number Theory and Atomic Densities

A Theory of Atomic Transactions

This paper describes some results of a recent project to develop a theory for reasoning about atomic transactions. This theory allows careful statement of the correctness conditions to be satisfied by transaction-processing algorithms, as well as clear and concise description of such algorithms. It also serves as a framework for rigorous correctness proofs.

Theory of a collective atomic recoil laser

We perform a study of a collective atomic recoil laser ~CARL! that goes beyond the initial growth period. The study is based on a theory that treats both internal and external degrees of atomic freedom quantum mechanically but regards the laser light as a classical field obeying Maxwell’s equations. We introduce the concepts of momentum families and diffraction groups and organize the matter wa...

Some Elements of Atomic Structure Theory

As everyone knows, an atom is the smallest unit of a chemical element, and atoms combine to form molecules and solids. Each element is uniquely specified by its atomic number Z. However a given element may occur in several different versions, called isotopes; these have the same Z but different atomic mass number A. A glance at the periodic table shows that for the naturally occurring elements ...