Super daisy resummations and an effective expansion parameter in the O(N)-model near the phase transition
نویسندگان
چکیده
منابع مشابه
Phase transition in scalar φ-theory beyond the super daisy resummations
The temperature phase transition in scalar φ4(x) field theory with spontaneous symmetry breaking is investigated in a partly resummed perturbative approach. The second Legendre transform is used and the resulting gap equation is considered in the extrema of the free energy functional. It is found that the phase transition is of first order in the super daisy as well as in a certain beyond super...
متن کامل2 00 1 Temperature phase transition and an effective expansion parameter in the O ( N ) - model
The temperature phase transition in the N-component scalar field theory with spontaneous symmetry breaking is investigated in the pertur-bative approach. The second Legendre transform is used together with the consideration of the gap equations in the extrema of the free energy. Resummations are performed on the super daisy level and beyond. The phase transition turns out to be weakly of first ...
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چکیده ندارد.
15 صفحه اولJ ul 2 00 1 Temperature phase transition and an effective expansion parameter in the O ( N ) - model
The temperature phase transition in the N-component scalar field theory with the spontaneous symmetry breaking is investigated in the pertur-bative approach.The second Legendre transform and consideration of the gap equations in the extrema of the free energy functional is used. The super daisy and beyond resummations are applied. In the super daisy approximation a first order phase transition ...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2002
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(02)01595-2