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Some Implications of a Cosmological Phase Transition
Abstract I discuss the reasons for believing that phase transitions occurred in the very early history of the universe, and the topological structures that may have been generated thereby-inExpand
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Symmetry Breaking in Non-Abelian Gauge Theories
According to the Goldstone theorem, any manifestly covariant broken-symmetry theory must exhibit massless particles. However, it is known from previous work that such particles need not appear in aExpand
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Evolution of a system of cosmic strings
The formation and destruction of closed loops in a system of strings is discussed. Coupled equations are set up to describe the evolution of the system and it is shown that it must either evolve to aExpand
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Cosmic strings
The topic of cosmic strings provides a bridge between the physics of the very small and the very large. They are predicted by some unified theories of particle interactions. If they exist, they mayExpand
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Average Magnification Effect of Clumping of Matter
The aim of this paper is to reexamine the question of the average magnification in a universe with some inhomogeneously distributed matter. We present an analytic proof, valid under rather generalExpand
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Cosmic strings reborn
There are two main reasons for the recent renewal of interest in cosmic strings: Fundamental string-theory models suggest their existence; and there are at least two tentative observations of theirExpand
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On phase ordering behind the propagating front of a second-order transition
In a real system the heating is nonuniform, and a second-order phase transition to a broken-symmetry phase occurs by propagation of a temperature front. Two parameters, the cooling rate τQ and theExpand
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Fundamental cosmic strings
Cosmic strings are linear concentrations of energy that may be formed at phase transitions in the very early universe. At one time they were thought to provide a possible origin for the densityExpand
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