The spontaneous breaking of a metastable string
نویسنده
چکیده
We consider the phase transition of a string with tension ε1 to a string with a smaller tension ε2. 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 ε2 = 0 the found formula for the decay rate also describes a break up of a metastable string into two pieces.
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تاریخ انتشار 2008