Matches in SemOpenAlex for { <https://semopenalex.org/work/W2895877422> ?p ?o ?g. }
- W2895877422 abstract "A bstract We derive the semiclassical contributions from the real and complex bions in the two-dimensional ℂ P N − 1 sigma model on ℝ× S 1 with a twisted boundary condition. The bion configurations are saddle points of the complexified Euclidean action, which can be viewed as bound states of a pair of fractional instantons with opposite topological charges. We first derive the bion solutions by solving the equation of motion in the model with a potential which simulates an interaction induced by fermions in the ℂ P N − 1 quantum mechanics. The bion solutions have quasi-moduli parameters corresponding to the relative distance and phase between the constituent fractional instantons. By summing over the Kaluza-Klein modes of the quantum fluctuations around the bion backgrounds, we find that the effective action for the quasi-moduli parameters is renormalized and becomes a function of the dynamical scale (or the renormalized coupling constant). Based on the renormalized effective action, we obtain the semiclassical bion contribution in a weak coupling limit by making use of the Lefschetz thimble method. We find in the supersymmetric case that the bion contribution vanishes as expected from supersymmetry. In non-supersymmetric cases, the non-perturbative contribution has an imaginary ambiguity which is consistent with the expected infrared renormalon ambiguity. Our results explicitly demonstrate that the complex bion can explain the infrared renormalon." @default.
- W2895877422 created "2018-10-26" @default.
- W2895877422 creator A5017156871 @default.
- W2895877422 creator A5051779003 @default.
- W2895877422 creator A5056739583 @default.
- W2895877422 creator A5083415661 @default.
- W2895877422 creator A5089973486 @default.
- W2895877422 date "2019-02-01" @default.
- W2895877422 modified "2023-09-28" @default.
- W2895877422 title "Bion non-perturbative contributions versus infrared renormalons in two-dimensional ℂPN − 1 models" @default.
- W2895877422 cites W117939408 @default.
- W2895877422 cites W1483116979 @default.
- W2895877422 cites W1499803533 @default.
- W2895877422 cites W1539802864 @default.
- W2895877422 cites W1616639137 @default.
- W2895877422 cites W1632328453 @default.
- W2895877422 cites W1774102683 @default.
- W2895877422 cites W1796810754 @default.
- W2895877422 cites W1827379449 @default.
- W2895877422 cites W1848273033 @default.
- W2895877422 cites W1864338771 @default.
- W2895877422 cites W1937391993 @default.
- W2895877422 cites W1965100557 @default.
- W2895877422 cites W1974337101 @default.
- W2895877422 cites W1994940944 @default.
- W2895877422 cites W2003953492 @default.
- W2895877422 cites W2010574618 @default.
- W2895877422 cites W2014327939 @default.
- W2895877422 cites W2014573077 @default.
- W2895877422 cites W2017658873 @default.
- W2895877422 cites W2049075900 @default.
- W2895877422 cites W2060963936 @default.
- W2895877422 cites W2061878393 @default.
- W2895877422 cites W2066126858 @default.
- W2895877422 cites W2066698580 @default.
- W2895877422 cites W2071446561 @default.
- W2895877422 cites W2072197465 @default.
- W2895877422 cites W2078844075 @default.
- W2895877422 cites W2079119666 @default.
- W2895877422 cites W2085257194 @default.
- W2895877422 cites W2098005529 @default.
- W2895877422 cites W2102278681 @default.
- W2895877422 cites W2107369567 @default.
- W2895877422 cites W2120869140 @default.
- W2895877422 cites W2125796426 @default.
- W2895877422 cites W2132633822 @default.
- W2895877422 cites W2136390497 @default.
- W2895877422 cites W2138517620 @default.
- W2895877422 cites W2144809020 @default.
- W2895877422 cites W2145032535 @default.
- W2895877422 cites W2147285462 @default.
- W2895877422 cites W2154828889 @default.
- W2895877422 cites W2163845835 @default.
- W2895877422 cites W2172154008 @default.
- W2895877422 cites W2195967232 @default.
- W2895877422 cites W2209147739 @default.
- W2895877422 cites W2232642322 @default.
- W2895877422 cites W2254211733 @default.
- W2895877422 cites W2281550997 @default.
- W2895877422 cites W2287871943 @default.
- W2895877422 cites W2310625096 @default.
- W2895877422 cites W2336068296 @default.
- W2895877422 cites W2342704809 @default.
- W2895877422 cites W2408171261 @default.
- W2895877422 cites W2509969471 @default.
- W2895877422 cites W2514236306 @default.
- W2895877422 cites W2522229160 @default.
- W2895877422 cites W2523040454 @default.
- W2895877422 cites W2533533704 @default.
- W2895877422 cites W2563205217 @default.
- W2895877422 cites W2581353277 @default.
- W2895877422 cites W2589911045 @default.
- W2895877422 cites W2610043059 @default.
- W2895877422 cites W2744975895 @default.
- W2895877422 cites W2774089207 @default.
- W2895877422 cites W2962800597 @default.
- W2895877422 cites W2963355690 @default.
- W2895877422 cites W2963839350 @default.
- W2895877422 cites W2964264196 @default.
- W2895877422 cites W2964345157 @default.
- W2895877422 cites W3098154648 @default.
- W2895877422 cites W3098315944 @default.
- W2895877422 cites W3098357525 @default.
- W2895877422 cites W3098412377 @default.
- W2895877422 cites W3099640535 @default.
- W2895877422 cites W3099658498 @default.
- W2895877422 cites W3099786644 @default.
- W2895877422 cites W3099813700 @default.
- W2895877422 cites W3099859773 @default.
- W2895877422 cites W3100016345 @default.
- W2895877422 cites W3100032586 @default.
- W2895877422 cites W3100316108 @default.
- W2895877422 cites W3100412151 @default.
- W2895877422 cites W3100671061 @default.
- W2895877422 cites W3101162342 @default.
- W2895877422 cites W3101518055 @default.
- W2895877422 cites W3103533718 @default.
- W2895877422 cites W3103880953 @default.
- W2895877422 cites W3103959949 @default.
- W2895877422 cites W3104000272 @default.