Semiclassical calculation of the nucleation rate for first order phase transitions in the 2-dimensional φ 4-model beyond the thin wall approximation * G. Münster (a) and S.B. Rutkevich (b) Abstract In many systems in condensed matter physics and quantum field theory, first order phase transitions are initiated by the nucleation of bubbles of the stable phase. Traditionally, this process is desc...

Semiclassical calculation of the nucleation rate for first order phase transitions in the 2-dimensional φ 4-model beyond the thin wall approximation * G. Münster (a) and S.B. Rutkevich (b) Abstract In many systems in condensed matter physics and quantum field theory, first order phase transitions are initiated by the nucleation of bubbles of the stable phase. Traditionally, this process is desc...

Bubble chambers using liquid xenon (and argon) have been operated (resp. planned) by the Scintillating Chamber (SBC) collaboration for GeV-scale dark matter searches and CE$\nu$NS from reactors. This will require a robust calibration program of nucleation efficiency low-energy nuclear recoils in these target media. Such has carried out PICO collaboration, which aims to directly detect $\mathrm{...

The nucleation and evolution of bubbles are investigated in the model of anO(3)-symmetric scalar field coupled to gravity in the high temperature limit. It is shown that, in addition to the well-known bubble of which the inside region is true vacuum, there exists another decay channel at high temperature which is described by a new solution such that a false vacuum region like a global monopole...

4H-SiC was irradiated with 3.5 keV He ions using the MIAMI facility at University of Huddersfield. The evolution of microstructure and gas bubbles during the irradiation at 700°C, 800°C and 900°C was observed by in situ transmission electron microscopy. Under irradiation, isolated bubbles and bubble discs formed in the SiC matrix. Bubble discs lying on {0001} and {10-10} crystal planes were beg...

This paper presents a complete set of coupled equations that govern the bubble transport in three-dimensional gravity-driven flow. The model accounts for bubble growth or shrinkage due to pressure and temperature changes as well as for multiple gas diffusion in and out of the bubbles but neglects bubble coalescence, break-up, and nucleation. The model applies to glass melting furnaces but it co...