@article{4937644dbaeb41a4b6872b1c26351269,
title = "Monopole bubble in early universe",
abstract = "The nucleation and evolution of bubbles are investigated in the model of an 0(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 the 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 remains at the center of a bubble. The value of the Euclidean action of this bubble is higher than that of the ordinary bubble; however, the production rate of it can be considerable for a certain range of scalar potentials.",
keywords = "Cosmological phase transition, Finite-temperature field theory, General relativity",
author = "Yoonbai Kim and Maeda, {Kei Ichi} and Nobuyuki Sakai",
note = "Funding Information: The authors are very grateful to G. 't Hooft, V.R Nair, K. Nakao, M. Peskin, M. Sasaki, K. Sato, T. Tanaka, E.J. Weinberg, Piljin Yi, and Zae-young Ghim for valuable discussions. Thanks are also due to E Haines for correcting the manuscript. K.M.'s and N.S.'s research was supported in part by the Grant-in-aid for Scientific Research Fund of the Ministry of Education, Science and Culture (No. 06302021, No. 06640412, No. 07740226, and No. 08740217), and by the Waseda University Grant for Special Research Projects. Y.K.'s research was supported in part by JSPS (No. 93033), the KOSEF (95-0702-04-01-3, Brain Pool Program) and the Korean Ministry of Education (BSRI-95-2413). N.S. thanks Yukawa Institute of Theoretical Physics for financial support during his visit. Y.K. thanks Physics Department of Hanyang University (BSRI-95-2441) and Center for Theoretical Physics of Seoul National University for their hospitality and financial support during his visit.",
year = "1996",
doi = "10.1016/s0550-3213(96)90151-0",
language = "English",
volume = "481",
pages = "453--476",
journal = "Nuclear Physics B",
issn = "0550-3213",
publisher = "Elsevier",
number = "1-2",
}