| | |
| | |
Stat |
Members: 3645 Articles: 2'504'928 Articles rated: 2609
25 April 2024 |
|
| | | |
|
Article overview
| |
|
Non-adiabatic transitions in a massless scalar field | Johannes von Keler
; Stefan Teufel
; | Date: |
2 Apr 2012 | Abstract: | We consider the dynamics of a massless scalar field with time-dependent
sources in the adiabatic limit. This is an example of an adiabatic problem
without spectral gap. The main goal of our paper is to illustrate the
difference between the error of the adiabatic approximation and the concept of
non-adiabatic transitions for gapless systems. In our example the non-adiabatic
transitions correspond to emission of free bosons, while the error of the
adiabatic approximation is dominated by a velocity-dependent deformation of the
ground state of the field. In order to capture these concepts precisely, we
show how to construct super-adiabatic approximations for a gapless system. | Source: | arXiv, 1204.0344 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |