Renormalization group approach to the spin-1 Bose gas

  • G. SzirmaiEmail author
Laser Cooling and Quantum Gas


A field theoretical renormalization group approach at two loop level is applied to the homogeneous spin-1 Bose gas in order to investigate the order of the phase transition. The beta function of the system with d=4-epsilon dimensions is determined up to the third power of the coupling constants and the system's free energy on the border of the classical stability is given in next to leading order. It is found that the phase transition of the interacting spin-1 Bose gases with weak spin-dependent coupling constant values is of first order.


Spectroscopy Neural Network Phase Transition Free Energy State Physics 
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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2005

Authors and Affiliations

  1. 1.Research Group for Statistical Physics of the Hungarian Academy of SciencesBudapestHungary

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