nLab
false vacuum

Context

Physics

physics, mathematical physics, philosophy of physics

Surveys, textbooks and lecture notes


theory (physics), model (physics)

experiment, measurement, computable physics

Contents

Idea

A classical field theory with action functional having the standard kinetic term non-derivative interactions has stable, time-independent solutions where all fields are constant on a value that is a local minimum of the interaction term potential energy (if any).

In the corresponding quantum field theory, however, a state that is initially concentrated this way on a local minimum which is not also a global minimum is not time-independent, but will exhibit quantum tunneling? behaviour by which the fields “tunnel” through the local potential barrier into the global minimum. Therefore one speaks of a false vacuum in this case.

References

The classical articles are

  • Sidney Coleman, Fate of the false vacuum: Semiclassical theory , Phys. Rev. D 15, 2929–2936 (1977) (web)

  • Sidney Coleman, Frank De Luccia, Gravitational effects on and of vacuum decay , Phys. Rev. D 21, 3305–3315 (1980) (web)

Revised on May 10, 2014 08:10:05 by Urs Schreiber (31.55.40.250)