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math-ph2011★ 4 cited
A Relativistic Version of the Two-Level Atom in the Rest-Frame Instant Form of Dynamics
David Alba, Horace W. Crater, Luca Lusanna
We define a relativistic version of the two-level atom, in which an extended atom is replaced by a point particle carrying suitable Grassmann variables for the description of the t…
math-ph2008★ 23 cited
Towards Relativistic Atomic Physics. I. The Rest-Frame Instant Form of Dynamics and a Canonical Transformation for a System of Charged Particles plus the Electro-Magnetic Field
David Alba, Horace Crater, Luca Lusanna
A complete exposition of the rest-frame instant form of dynamics for arbitrary isolated systems (particles, fields, strings, fluids)admitting a Lagrangian description is given. The…