Velocity and length forms of oscillator strengths and unitary transformations of quantum electrodynamics

Journal Article · Thu Jun 01 04:00:00 EDT 1978 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.17.1939· OSTI ID:6825254

Lin, D L

A unitary transformation on the total Hamiltonian of quantum electrodynamics is shown to relate the length and velocity forms of both nonrelativistic and relativistic oscillator strengths. For the gauge-violating self-consistant Hamiltonian of the Hartree-Fock approximation, the conventional relation between length and velocity forms is an approximation to a general relation between interaction Hamiltonians connected by the unitary transformation. From the point of view of the unitary transformation, the velocity form is as reliable as the length form, and the forms of length formulas of relativistic and nonrelativistic oscillator strengths are identical.

• Research Organization: Radiation and Electromagnetics Division, Science Applications, Incorporated, 1651 Old Meadow Road, Suite 600, McLean, Virginia 22101
• OSTI ID: 6825254
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 17:6; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640305* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Theory-- (-1987)
74 ATOMIC AND MOLECULAR PHYSICS
DIMENSIONS
ELECTRODYNAMICS
FIELD THEORIES
GENERAL RELATIVITY THEORY
HARTREE-FOCK METHOD
LENGTH
OSCILLATOR STRENGTHS
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
RELATIVITY THEORY
VELOCITY