ON A MEAN FIELD APPROXIMATION FOR HIGGS-YUKAWA SYSTEMS
1994 ◽
Vol 09
(11)
◽
pp. 983-991
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Keyword(s):
We discuss the phase structure of a lattice Higgs-Yukawa system in the variational mean field approximation with contributions of fermionic determinant being calculated in a ladder approximation. In particular, we demonstrate that in this approximation the ferromagnetic phase in the Z2 model with naive fermions can appear as an artifact of a finite lattice and that the phase diagram for this model on infinite lattice changes qualitatively at space-time dimension D = 4 compared with those at D > 4.
2019 ◽
Vol 34
(31)
◽
pp. 1950199
◽
2014 ◽
Vol 215
◽
pp. 55-60
◽
2009 ◽
Vol 20
(06)
◽
pp. 967-978
◽
Keyword(s):
1991 ◽
Vol 261
(1-2)
◽
pp. 109-115
◽
Keyword(s):
1994 ◽
Vol 08
(28)
◽
pp. 3963-3986
2021 ◽
2009 ◽
Vol 20
(12)
◽
pp. 1999-2012
◽
Keyword(s):