Autor: |
Masamitsu Aiba, Jonas Kallestrup |
Jazyk: |
angličtina |
Rok vydání: |
2020 |
Předmět: |
|
Zdroj: |
Physical Review Accelerators and Beams, Vol 23, Iss 4, p 044003 (2020) |
Druh dokumentu: |
article |
ISSN: |
2469-9888 |
DOI: |
10.1103/PhysRevAccelBeams.23.044003 |
Popis: |
In circular accelerators, transverse beam emittances can be exchanged by means of a coupling resonance crossing. It was first demonstrated experimentally at CERN accelerators, before a theoretical study revealed its mechanism. The existing theory of emittance exchange seems, however, to be deficient. In this study, we establish a theory of emittance exchange using the matrix formalism. Furthermore, we have found that the mechanism of emittance exchange is analogous to the transition dynamics of two-state quantum systems, thereby allowing the Landau-Zener formula to be applied for the prediction of transverse emittance values after nonadiabatic crossing. |
Databáze: |
Directory of Open Access Journals |
Externí odkaz: |
|