34 citations · 136 across the 13 of their papers we have counts for
3 papers · 1 filter
Fluctuations in quantum mechanics and field theories from a new version of semiclassical theory. II
M. A. Escobar-Ruiz, E. Shuryak, A. V. Turbiner
This is the second paper on semiclassical approach based on the density matrix given by the Euclidean time path integral with fixed coinciding endpoints. The classical path, interp…
Three-loop Correction to the Instanton Density. II. The Sine-Gordon potential
M. A. Escobar-Ruiz, E. Shuryak, A. V. Turbiner
In this second paper on quantum fluctuations near the classical instanton configurations, see {\em Phys. Rev. D \bf 92}, 025046 (2015) and arXiv:1501.03993, we focus on another wel…
Three-loop Correction to the Instanton Density. I. The Quartic Double Well Potential
M. A. Escobar-Ruiz, E. Shuryak, A. V. Turbiner
This paper deals with quantum fluctuations near the classical instanton configuration. Feynman diagrams in the instanton background are used for the calculation of the tunneling am…