4 papers
Winding number transitions at finite temperature in the Abelian-Higgs model
D. K. Park, H. J. W. Müller-Kirsten, J. Q. Liang
Following our earlier investigations we examine the quantum-classical winding number transition in the Abelian-Higgs system. It is demonstrated that the sphaleron transition in thi…
Winding Number Transitions in the Mottola-Wipf Model on a Circle
D. K. Park, H. J. W. Müller-Kirsten, J. -Q. Liang
Winding number transitions from quantum to classical behavior are studied in the case of the {1+1} dimensional Mottola-Wipf model with the space coordinate on a circle for explorin…
Periodic Bounce for Nucleation Rate at Finite Temperature in Minisuperspace Models
J. -Q. Liang, H. J. W. Müller-Kirsten, Y. -B. Zhang +3
The periodic bounce configurations responsible for quantum tunneling are obtained explicitly and are extended to the finite energy case for minisuperspace models of the Universe. A…
The Wess-Zumino term and quantum tunneling
J. - Q. Liang, L. Maharana, H. J. W. Mueller-Kirsten
The significance of the Wess--Zumino term in spin tunneling is explored, and a formula is established for the splitting of energy levels of a particle with large fermionic spin as…