Classification of flat directions in perturbative heterotic superstring vacua with anomalous U(1) [PDF]
Nuclear Physics B, 1998 26 ...
Gerald Cleaver +4 more
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Superstring Vacua of 4-dimensional PP-Waves with Enhanced Supersymmetry [PDF]
Journal of High Energy Physics, 2002 We study the superstring vacua constructed from the conformal field theories of the type H_4 x M, where H_4 denotes the super Nappi-Witten model (super WZW model on the 4-dimensional Heisenberg group H_4) and M denotes an arbitrary N=2 rational superconformal field theory with c=9.
Yasuaki Hikida, Yuji Sugawara
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Critical superstring vacua from noncritical manifolds: A novel framework for string compactification and mirror symmetry [PDF]
Physical Review Letters, 1993 A new framework is found for the compactification of supersymmetric string theory. It is shown that the massless spectra of critical string vacua with central charge c=3${\mathit{D}}_{\mathrm{crit}}$ can be derived from manifolds of complex dimension ${\mathit{D}}_{\mathrm{crit}}$+2(Q-1),Q\ensuremath{\ge}1, whose first Chern class is quantized in a ...
Rolf Schimmrigk
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Systematic study of the SO(10) symmetry breaking vacua in the matrix model for type IIB superstrings [PDF]
Journal of High Energy Physics, 2011 We study the properties of the space-time that emerges dynamically from the matrix model for type IIB superstrings in ten dimensions. We calculate the free energy and the extent of space-time using the Gaussian expansion method up to the third order.
Jun Nishimura +2 more
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On
Advances in High Energy Physics, 2011 We compute one-loop threshold corrections toℛ4terms inN=5,6supergravity vacua of Type II superstrings. We then discuss nonperturbative corrections generated by asymmetric D-brane instantons. Finally we derive generating functions for MHV amplitudes at tree level inN=5,6supergravities.
Massimo Bianchi
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Conflicts with de Sitter Vacua in Superstring Theory
McGill Science Undergraduate Research JournalModels of our universe lack consistency at different energy scales, so we require a theory with ultraviolet (UV) completion such as string theory. A suitable candidate to model our universe in this framework is de Sitter space, a spacetime which expands and has positive curvature.
J. Morais
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Anomalous U(1)s in Type I superstring vacua
, 2002 We perform a systematic string computation of the masses of anomalous U(1) gauge bosons in four-dimensional orientifold vacua, and we study their localization properties in the internal (compactified) space. We find that N=1 supersymmetric sectors yield four-dimensional contributions, localized in the whole six-dimensional internal space, while N=2 ...
Ignatios Antoniadis +2 more
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On R^4 terms and MHV amplitudes in N = 5,6 supergravity vacua of Type II superstrings [PDF]
Advances in High Energy Physics, 2010 19 ...
Massimo Bianchi
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Explicit superstring vacua in a background of gravitational waves and dilaton [PDF]
Il Nuovo Cimento A, 1995 We present an explicit solution of superstring effective equations, represented by gravitational waves and dilaton backgrounds. Particular solutions will be examined in a forthcoming note.
A. Peterman, A. Zichichi
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, 2023 In a multi-fold universe, gravity emerges from Entanglement through the multi-fold mechanisms. As a result, gravity-like effects appear in between entangled particles that they be real or virtual. Long range, massless gravity results from entanglement of massless virtual particles.
Stéphane Maes
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