Zobrazeno 1 - 6
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pro vyhledávání: '"Sunil K. Gandhi"'
Autor:
Sunil K. Gandhi, Marcus Benghi Pinto
Publikováno v:
Physical Review D. 49:4258-4264
Using the linear [delta] expansion we investigate the free energy of the 1+1 and 2+1 dimensional Gross-Neveu model. In both cases the large-[ital N] result is exactly reproduced at first order in [delta]. However, when higher-order corrections are in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93494af956b39408456b52ca38c4bff3
https://doi.org/10.1103/physrevd.49.4258
https://doi.org/10.1103/physrevd.49.4258
Autor:
Sunil K. Gandhi, I. R. C. Buckley
Publikováno v:
Physical Review D. 45:2911-2915
Using the linear {delta} expansion we calculate the effective potential of the O({ital N}){times}O({ital N})-invariant {phi}{sup 2}{chi}{sup 2} theory, in 3 dimensions, to first order in {delta}. The {phi}{sub {ital a}} and {chi}{sub {ital a}} each r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7b157ba3cab059cf40b1864935b2926
https://doi.org/10.1103/physrevd.45.2911
https://doi.org/10.1103/physrevd.45.2911
Publikováno v:
Physics Letters B. 275:55-62
Kahler potentials for the moduli and matter fields of the Z 3 ×Z 3 orbifold are derived to quadratic order in the moduli by direct calculation of string amplitudes. This method is also applied to a Z 3 orbifold where some matter fields are in twiste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b85e9b71d74b9d9a94a735ccec491b28
https://doi.org/10.1016/0370-2693(92)90850-4
https://doi.org/10.1016/0370-2693(92)90850-4
Publikováno v:
Physics Letters B. 269:293-299
The Kahler potential of the low energy supergravity theory is derived for a simple superconformal model constructed as a 1 9 Gepner model quotiented by a discrete symmetry with embedding in the gauge group.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c37df69a12a73f31ce0553ea7ece3b58
https://doi.org/10.1016/0370-2693(91)90173-n
https://doi.org/10.1016/0370-2693(91)90173-n
Publikováno v:
Nuclear Physics B. 359:429-440
Using the linear δ-expansion we study the effective potentials of the O(N)-invariant Gross-Neveu model and (φaφa)2 theory in the large-N limit. We show that the linear δ-expansion augmented with the optimization scheme ∂V ∂μ = 0 , where μ i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffc0d9b1a2ca884222d096ce2a099e57
https://doi.org/10.1016/0550-3213(91)90067-8
https://doi.org/10.1016/0550-3213(91)90067-8
Autor:
Sunil K. Gandhi, Marcus Benghi Pinto
Publikováno v:
Physical review. D, Particles and fields. 46(6)
We apply the {delta} expansion to evaluate the effective potentials of theories displaying discrete and continuous chiral symmetry. In the continuous chiral-symmetry-breaking case we show that a careful choice of the interpolation parameter preserves
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1e01316b235b49e0ac662c693a288a7
https://pubmed.ncbi.nlm.nih.gov/10015188
https://pubmed.ncbi.nlm.nih.gov/10015188