|
| related topics |
| {energy, state, states} |
| {wave, scattering, interference} |
| {operator, operators, space} |
| {particle, mechanics, theory} |
| {cos, sin, state} |
| {equation, function, exp} |
| {level, atom, field} |
| {phase, path, phys} |
| {cavity, atom, atoms} |
| {theory, mechanics, state} |
|
Repulsion of Resonance States and Exceptional Points
W. D. Heiss
abstract: Level repulsion is associated with exceptional points which are square root
singularities of the energies as functions of a (complex) interaction
parameter. This is also valid for resonance state energies. Using this concept
it is argued that level anti-crossing (crossing) must imply crossing
(anti-crossing) of the corresponding widths of the resonance states. Further,
itis shown that an encircling of an exceptional point induces a phase change of
one wave function but not of the other. An experimental setup is discussed
where this phase behaviour which differs from the one encountered at a diabolic
point can be observed.
- oai_identifier:
- oai:arXiv.org:quant-ph/9909047
- categories:
- quant-ph
- comments:
- 4 pages, latex, 3 figures, to appear in Phys.Rev.E
- doi:
- 10.1103/PhysRevE.61.929
- arxiv_id:
- quant-ph/9909047
- created:
- 1999-09-15
Full article ▸
|
|
| related documents |
| 0209078v2 |
| 0701096v2 |
| 0610114v3 |
| 0505101v1 |
| 0702078v2 |
| 0507186v2 |
| 0509023v3 |
| 9710049v1 |
| 0506022v2 |
| 0602048v2 |
| 0507266v1 |
| 9605001v1 |
| 0412118v2 |
| 0209102v1 |
| 0204139v1 |
| 0409149v2 |
| 0612175v1 |
| 0612039v1 |
| 0304108v4 |
| 0508172v2 |
| 9705040v1 |
| 0205123v1 |
| 9708020v1 |
| 0203024v1 |
| 0208144v2 |
|