Negative mode problem in false vacuum decay with gravity
نویسندگان
چکیده
منابع مشابه
False Vacuum In ation with Einstein Gravity
We present a detailed investigation of chaotic in ation models which feature two scalar elds, such that one eld (the in aton) rolls while the other is trapped in a false vacuum state. The false vacuum becomes unstable when the magnitude of the in aton eld falls below some critical value, and a rst or second order transition to the true vacuum ensues. Particular attention is paid to the case, te...
متن کاملParticle decay in false vacuum
We revisit the problem of decay of a metastable vacuum induced by the presence of a particle. For the bosons of the 'master field' the problem is solved in any number of dimensions in terms of the spontaneous decay rate of the false vacuum, while for a fermion we find a closed expression for the decay rate in (1+1) dimensions. It is shown that in the (1+1) dimensional case an infrared problem o...
متن کاملFalse vacuum inflation with Einstein gravity.
We present a detailed investigation of chaotic inflation models which feature two scalar fields, such that one field (the inflaton) rolls while the other is trapped in a false vacuum state. The false vacuum becomes unstable when the magnitude of the inflaton field falls below some critical value, and a first or second order transition to the true vacuum ensues. Particular attention is paid to t...
متن کاملFalse Vacuum Decay after Inflation
Inflation is terminated by a non-equilibrium process which finally leads to a thermal state. We study the onset of this transition in a class of hybrid inflation models. The exponential growth of tachyonic modes leads to decoherence and spinodal decomposition. We compute the decoherence time, the spinodal time, the size of the formed domains and the homogeneous classical fields within a single ...
متن کاملFalse Vacuum Decay Induced by Particle Collisions
The semiclassical formalism for numerical calculation of the rate of tunneling transitions induced by N particles with total energy E of order or higher than the height of the barrier is developed. The formalism is applied to the induced false vacuum decay in the massive four-dimensional −λφ model. The decay rate, as a function of E and N , is calculated numerically in the range 0.4 ∼< E/Esph ∼...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2000
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(00)00756-8