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741
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744
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745“…In this paper, we show how the generic coupling of moduli to the kinetic energy of ordinary matter fields results in a cosmological mechanism that influences the evolution and stability of moduli. …”
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746por Laine, M.“…Placing a high-Tc superconductor in an increasing external magnetic field, the flux first penetrates the sample through an Abrikosov vortex lattice, and then a first order transition is observed by which the system goes to the normal phase. We discuss the cosmological motivation for considering the electroweak phase transition in the presence of an external magnetic field, the analogies this system might have with the superconductor behaviour described above, and in particular whether at large physical Higgs masses, corresponding to the high-Tc regime, an analogue of the vortex phase and an associated first order phase transition could be generated.…”
Publicado 2000
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747
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748
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749por Veneziano, GabrieleMaterias: “…General Relativity and Cosmology…”
Publicado 2000
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750
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751“…We exhibit a self-tuned four-dimensional cosmological constant when five-dimensional supergravity is broken by an arbitrary tension on the brane-world. …”
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752
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753por Hebecker, Arthur“…After recalling why dynamical adjustment mechanisms represent a particularly attractive possibility for solving the cosmological constant problem, we briefly discuss their intrinsic difficulties as summarized in Weinberg's no-go theorem. …”
Publicado 2001
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754“…We analyze the implications of several recent cosmological and experimental measurements for the mass spectra of the Constrained MSSM. …”
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755por Linde, Andrei DMaterias: “…General Relativity and Cosmology…”
Publicado 2001
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756
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757
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758“…Brane Gas Cosmology (BGC) is an approach to M-theory cosmology in which the initial state of the Universe is taken to be small, dense and hot, with all fundamental degrees of freedom near thermal equilibrium. …”
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759
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760