The exchange energy of H+2 calculated from polarization perturbation theory

1991 ◽  
Vol 94 (11) ◽  
pp. 7266-7277 ◽  
Author(s):  
K. T. Tang ◽  
J. P. Toennies ◽  
C. L. Yiu
Keyword(s):  
Perturbation Theory ◽  
Exchange Energy

Exchange energy ofH2+calculated from polarization perturbation theory and the Holstein-Herring method

1991 ◽  
Vol 67 (11) ◽  
pp. 1419-1422 ◽  
Author(s):  
T. C. Scott ◽  
A. Dalgarno ◽  
John D. Morgan
Keyword(s):  
Perturbation Theory ◽  
Exchange Energy

A perturbation theory calculation of the exchange energy of the HeH++ molecular ion

1994 ◽  
Vol 101 (10) ◽  
pp. 8998-9009 ◽  
Author(s):  
S. H. Patil ◽  
K. T. Tang ◽  
J. P. Toennies ◽  
C. L. Yiu
Keyword(s):  
Perturbation Theory ◽  
Exchange Energy ◽  
Molecular Ion ◽  
Theory Calculation

A Perturbation Theory for the Population of Atomic Energy Levels in Non-Lte Plasmas

1988 ◽  
Vol 102 ◽  
pp. 343-347
Author(s):  
M. Klapisch
Keyword(s):  
Perturbation Theory ◽  
Small Parameter ◽  
Classification Scheme ◽  
Sum Rules ◽  
Energy Levels ◽  
Natural Classification ◽  
Quantum Numbers ◽  
Formal Expansion ◽  
Atomic Energy Levels ◽  
As Effects

AbstractA formal expansion of the CRM in powers of a small parameter is presented. The terms of the expansion are products of matrices. Inverses are interpreted as effects of cascades.It will be shown that this allows for the separation of the different contributions to the populations, thus providing a natural classification scheme for processes involving atoms in plasmas. Sum rules can be formulated, allowing the population of the levels, in some simple cases, to be related in a transparent way to the quantum numbers.

Calculation of exchange energy in quantum dots : application to porous silicon

1993 ◽  
Vol 03 (C5) ◽  
pp. 355-358 ◽  
Author(s):  
G. FISHMAN ◽  
R. ROMESTAIN ◽  
J. C. VIAL
Keyword(s):  
Quantum Dots ◽  
Porous Silicon ◽  
Exchange Energy

Energy, Information, and Superluminal Speed in Quantum Electrodynamics

2020 ◽  
pp. 27-33
Author(s):  
Boris A. Veklenko
Keyword(s):  
Electromagnetic Field ◽  
Perturbation Theory ◽  
Quantum Electrodynamics ◽  
Excited Atom ◽  
Standard Quantum ◽  
Energy Information

Without using the perturbation theory, the article demonstrates a possibility of superluminal information-carrying signals in standard quantum electrodynamics using the example of scattering of quantum electromagnetic field by an excited atom.

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