University of Minnesota
School of Physics & Astronomy


The Spontaneous breaking of a metastable string


by A. Monin (Minnesota U.) , M.B. Voloshin (Minnesota U., Theor. Phys. Inst. & Moscow, ITEP in 0.1103/PhysRevD.78.065048

We consider the phase transition of a string with tension to a string with a smaller tension . The transition proceeds through quantum tunneling, and we calculate in arbitrary number of dimensions the pre-exponential factor multiplying the leading semiclassical exponential expression for the rate of the process. At the found formula for the decay rate also describes a break up of a metastable string into two pieces.

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