| | |
| | |
Stat |
Members: 3645 Articles: 2'504'928 Articles rated: 2609
25 April 2024 |
|
| | | |
|
Article overview
| |
|
Detailed analysis of quantum phase transitions within the $u(2)$ algebra | L.Fortunato
; L.Sartori
; | Date: |
13 Oct 2009 | Abstract: | We analyze in detail the quantum phase transitions that arise in models based
on the $u(2)$ algebraic description for bosonic systems with two types of
scalar bosons. First we discuss the quantum phase transition that occurs in
hamiltonians that admix the two dynamical symmetry chains $u(2)supset u(1)$
and $u(2)supset so(2)$ by diagonalizing the problem exactly in the $u(1)$
basis. Then we apply the coherent state formalism to determine the energy
functional. Finally we show that a quantum phase transition of a different
nature, but displaying similar characteristics, may arise also within a single
chain just by including higher order terms in the hamiltonian. | Source: | arXiv, 0910.2341 | 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:
| |