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101
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102“…We consider heterotic string compactifications to four dimensions when instantons shrink to zero size. If the standard model gauge group originates from the new gauge symmetry associated with the small instantons singularity, then the weakly or strongly coupled heterotic string scales can be taken to be arbitrarily low. …”
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103
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104
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105“…We study light quark interactions in the instanton liquid at finite quark/baryon number density analyzing chiral and diquark condensates and investigate the behaviors of quark dynamical mass and both condensates together with instanton liquid density as a function of quark chemical potential. …”
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106
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107“…The world-volume membrane instantons define SU(3) special lagrangian submanifolds of C^3. …”
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108“…Instanton theory provides a semiclassical approximation for computing quantum tunnelling effects in complex molecular systems. …”
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Online Artículo Texto -
109
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110“…We show an example where E3-instantons combine with standard gauge instantons to yield new multi-instanton effects contributing to superpotential, along the lines of ref.…”
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111
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112por Billo', Marco, Frau, Marialuisa, Fucito, Francesco, Lerda, Alberto, Morales, Jose F, Poghosyan, Rubik“…We discuss a string model where a conformal four-dimensional N=2 gauge theory receives corrections to its gauge kinetic functions from "stringy" instantons. These contributions are explicitly evaluated by exploiting the localization properties of the integral over the stringy instanton moduli space. …”
Publicado 2010
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info:eu-repo/semantics/article -
113
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114
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115
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116“…The D-instanton corrected hypermultiplet moduli space of type II string theory compactified on a Calabi-Yau threefold is known in the type IIA picture to be determined in terms of the generalized Donaldson-Thomas invariants, through a twistorial construction. …”
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117
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118“…We study the octonionic selfduality equations for $p=3$-branes in the light cone gauge and we construct explicitly, instanton solutions for spherical and toroidal topologies in various flat spacetime dimensions $(D=5+1,7+1,8+1,9+1)$, extending previous results for $p=2$ membranes. …”
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119
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120“…We compute the effect of small-size instanton corrections to current-current correlators, for all combinations of axial, vector, and possibly flavour non-diagonal currents. …”
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