Finite-size scaling exponents in the interacting boson model
We investigate the finite-size scaling exponents for the critical point at the shape phase transition from U(5) (spherical) to O(6) (deformed -unstable) dynamical symmetries of the Interacting Boson Model, making use of the Holstein-Primakoff boson expansion and the continuous unitary transfor- mati...
| Authors: | , , |
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| Format: | article |
| Publication Date: | 2005 |
| Country: | España |
| Institution: | Universidad de Huelva (UHU) |
| Repository: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Language: | English |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/5523 |
| Online Access: | http://hdl.handle.net/10272/5523 |
| Access Level: | Open access |
| Keyword: | Interacting boson model Quantum phase transitions |
| Summary: | We investigate the finite-size scaling exponents for the critical point at the shape phase transition from U(5) (spherical) to O(6) (deformed -unstable) dynamical symmetries of the Interacting Boson Model, making use of the Holstein-Primakoff boson expansion and the continuous unitary transfor- mation technique. We compute exactly the leading order correction to the ground state energy, the gap, the expectation value of the d-boson number in the ground state and the E2 transition prob- ability from the ground state to the first excited state, and determine the corresponding finite-size scaling exponents. |
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