RESEARCH INTERESTS

In this moment we have 3 research of interest:

i) Quantum Filed Theory at Finite Temperature .

ii) Quantum Field Theory in Curve Space.

iii) Technics of Regularization and Renormalization.

i) GROUP RESEARCH :Quantum Fileds Theory at Finite Temperature .

A.P.C.Malbouisson(CBPF) Publicacoes

N.F. Svaiter (CBPF) Publicacoes

F.S.Nogueira (Pos-Doc-Centre de Physique Theorique-Ecole Polytechnique-Paris),

C.de Callan (Centre de Physique Theorique-Ecole Polytechnique-Paris),

R.Ramos (UERJ).

M.B.Silva-Neto(aluno de Doutorado-bolsista da Capes),

G.N.J.Ananos (aluno de Doutorado-bolsista do CNPq).

RECENT WORKS

1) "ON THE FINITE TEMPERATURE $\lambda\varphi^{4}$. IS THERE A FIRST ORDER PHASE TRANSITION IN $(\lambda\varphi^{4})_{3}$?" A

.P.C. Malbouisson and N.S.Svaiter, Physica A {\bf 233}, 573 (1996).

2)"ON THE VACUUM STABILITY IN THE EFIMOV-FRADKIN MODEL AT FINITE TEMPERATURE"

3) ""A NEW DERIVATION OF THE COLEMAN-WEINBERG MECHANISM IN MASSLESS QED", A.P.C.Malbouisson, F.S.Nogueira and N.F.Svaiter, Mod.Phys Lett A {\bf 11}, 749 (1996).

4)" DIMENSIONAL TRANSMUTATION AND SYMETRY BREAKING IN MAXWELL-CHERN-SIMONS QED",

F.S.Nogueira and N.F.Svaiter, Mod.Phys Lett A {\bf 11}, 749 (1996).

5)"A NOTE ON THE PHASE TRANSITION IN A TOPOLOGICAL MASSIVE GINZBURG-LANDAU THEORY,

A.P.C.Malbouisson, F.S.Nogueira and N.F.Svaiter, CBPF preprint CBPF-NF-051/96, a ser published in Europhys.Lett.(1997).

6)"THE TRICRITICAL PHENOMENON IN ${(\lambda\varphi^{4}+ \sigma\varphi^{6})}_{D=3}$ AT FINITE TEMPERATURE ?",

G.N.J.Ananos and N.F.Svaiter. Physica A 241, 627 (1997).

7)"ONE-LOOP DIMENSIONAL REDUCTION OF THE LINEAR SIGMA MODEL",

M.B.Silva-Neto, A.P.C.Malbouisson and N.F.Svaiter, a ser publicado no Physica A (1998).

8)"ON THE TEMPERATURE DEPENDENT COUPLING CONSTANT IN THE VECTOR N-COMPONENT $(\lambda\varphi^{4})_{D}$ model. AN EXACT SOLUTION IN $D=3$.

C.de Calan, A.P.C.Malbouisson and N.F.Svaiter, CBPF preprint CBPF-NF-018/97 submitted to publication.

ii) Quantum Field Theory in Curve Space

GROUP RESEARCH :

Prof. L.H.Ford (Tufts University),

R.Ramos (UERJ)

R.De Paola (aluno de doutorado bolsista-CNPq)

RECENT WORKS

1)"COSMOlOGICAL AND BLACK-HOLE HORIZONT FLUCTUATIONS", L.H.Ford and N.F.Svaiter, Phys.Rev.D {\bf 56}, 2226 (1997).

2)"PARTICLE CREATION IN SPPINING COSMIC STRING SPACETIME" V. A. De Lorenci, R.De Paola and N.F.Svaiter, CBPF preprint CBPF-NF-022/97 submetido a publica\c{c}\~ao.

3)"RADIATIVE PROCESSES FOR RINDLER AND ACCELERATING OBSERVERS", R.De Paola and N.F.Svaiter, CBPF preprint CBPF-NF-018/96, submetido a publica\c{c}\~ao.

4)-" ON THE RENORMALIZED STRESS-TENSOR IN FLUCTUATING BOUNDARY CAVITIES" L.H.Ford and N.F.Svaiter, will submit to publication.

iii) Technics of regularization and renormalization

GROUP RESEARCH :

A.P.C.Malbouisson(CBPF)

B.F.Svaiter (IMPA).

N.F.Svaiter (CBPF).

G.N.J.Ananos (aluno de Doutorado-bolsista do CNPq)

M.B.Silva-Neto(aluno de Doutorado-bolsista da Capes).

RECENT WORKS

1)"ANALYTIC REGULARIZATION OF THE YUKAWA MODEL AT FINITE TEMPERATURE", A.P.C.Malbouissson B.F.Svaiter and N.F.Svaiter, J.Math.Phys. {\bf 38}, 2210 (1997).

2)- " THE $(\bar{\psi}_{i}\psi_{i})^{2}_{3}$ MODEL AT FINITE TEMPERATURE AND DENSITY",

G.N.J.Ananos, A.P.Malbouisson and N.F.Svaiter, CBPF preprint CBPF-NF-070/96, submitted to publication.