Loading…
A simple model for the nonretarded dispersive force between an electrically polarizable atom and a magnetically polarizable one
It is known that the consideration or not of retardation effects on the dispersive van der Waals force between two electrically polarizable atoms leads to power laws for the forces that differ only by one power: 1/r 8 for the retarded force and 1/r 7 for the nonretarded one. On the other hand, for t...
Saved in:
Published in: | American journal of physics 2002-04, Vol.70 (4), p.421-423 |
---|---|
Main Authors: | , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | It is known that the consideration or not of retardation effects on the dispersive van der Waals force between two electrically polarizable atoms leads to power laws for the forces that differ only by one power:
1/r
8
for the retarded force and
1/r
7
for the nonretarded one. On the other hand, for the case of an electrically polarizable atom and a magnetically polarizable one, while the retarded force is still proportional to
1/r
8
,
the nonretarded one is proportional to
1/r
5
.
Here, employing the fluctuating dipole model for both atoms, we reobtain this quite unexpected behavior for the nonretarded force mentioned above. A physical interpretation is also given for such a result. |
---|---|
ISSN: | 0002-9505 1943-2909 |
DOI: | 10.1119/1.1378015 |