• Publications
  • Influence
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
  • 667
  • 17
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
  • 1,017
  • 14
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
  • 129
  • 7
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
  • 114
  • 6
  • PDF
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
  • 35
  • 3
  • PDF
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
  • 62
  • 2
  • PDF
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
  • 49
  • 1
  • PDF
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
  • 100
  • 1
  • PDF