Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2017-08-24
Abstract: We study the energy level statistics of the states in U(5) and O(6) dynamical symmetries of the interacting boson model and the high spin states with backbending in U(5) symmetry. In the calculations, the degeneracy resulting from the additional quantum number is eliminated manually. The calculated results indicate that the finite boson number N effect is prominent. When N has a value close to a realistic one, increasing the interaction strength of subgroup O(5) makes the statistics vary from Poisson-type to GOE-type and further recover to Poisson-type.
Peer Review Status:Awaiting Review
Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2017-08-24
Abstract: We study the energy level statistics of the states in E(5) and X(5) dynamical symmetries. The calculated results indicate that the statistics of E(5) symmetry is regular and follows Poisson statistics, while that of X(5) symmetry involves two maxima in the nearest neighbor level spacing distribution P(s) and the ∆3 statistics follows the GOE statistics. It provides an evidence that the X(5) symmetry is at the critical point exhibiting competing degrees of freedom
Peer Review Status:Awaiting Review
Subjects: Physics >> Condensed Matter: Structural, Mechanical and Thermal Properties submitted time 2016-05-08
Abstract: Phase separation of two-component untrapped and trapped Bose gases at finite temperature is studied. Conditions for the stability of a homogeneous binary Bose gas mixture at finite temperature and the density profile of the trapped binary mixture are obtained. Our extended results include the known results for zero temperature.
Peer Review Status:Awaiting Review
Subjects: Physics >> Condensed Matter: Structural, Mechanical and Thermal Properties submitted time 2016-05-08
Abstract: The燘ose-Einstein爂as爄n燼n external potential is studied by means爋f爐he爈ocal-density燼pproximation. An analytical result is derived for爐he燿ependence爋fthe燾ritical爐emperature爋f燘ose-Einstein condensation on爐he爉utual interaction爄n燼爂eneric power-law potential.
Peer Review Status:Awaiting Review