13 citations · 39 across the 8 of their papers we have counts for
8 papers
Multi-field oscillons/I-balls in the Friedberg-Lee-Sirlin model
Kai Murai, Tatsuya Ogawa, Fuminobu Takahashi
We study oscillon/I-ball solutions in a real scalar version of the Friedberg-Lee-Sirlin (FLS) model. Using the multiple-scale analysis, we derive the conditions for oscillon soluti…
Gravastars as Nontopological Solitons
Tatsuya Ogawa, Hideki Ishihara
We investigate a coupled system consisting of a complex scalar field, a U(1) gauge field, a complex Higgs scalar field, and Einstein gravity. We present nontopological soliton star…
Solitonic Gravastars in a U(1) gauge Higgs model
Tatsuya Ogawa, Hideki Ishihara
We numerically obtain gravastar solutions as nontopological solitons in a system that consists of a U(1) gauge Higgs model with a complex scalar field and Einstein gravity. The sol…
Relativistic Nontopological Soliton Stars in a U(1) Gauge Higgs Model
Yota Endo, Hideki Ishihara, Tatsuya Ogawa
We study spherically symmetric nontopological soliton stars (NTS stars) numerically in the coupled system of a complex scalar field, a U(1) gauge field, a complex Higgs scalar fiel…
A Variety of Nontopological Solitons in a Spontaneously Broken U(1) Gauge Theory -- Dust Balls, Shell Balls, and Potential Balls
Hideki Ishihara, Tatsuya Ogawa
We show, by numerical calculations, that there exist three-types of stationary and spherically symmetric nontopological soliton solutions (NTS-balls) with large sizes in the couple…
Homogeneous Balls in a Spontaneously Broken U(1) Gauge Theory
Hideki Ishihara, Tatsuya Ogawa
We study the coupled system consisting of a complex matter scalar field, a U(1) gauge field, and a complex Higgs scalar field that causes spontaneously symmetry breaking. We show b…
Charge Screened Nontopological Solitons in a Spontaneously Broken U(1) Gauge Theory
Hideki Ishihara, Tatsuya Ogawa
We construct, numerically, stationary and spherically symmetric nontopological soliton solutions in the system composed of a complex scalar field, a U(1) gauge field, and a complex…
Perfect Charge Screening of Extended Sources in an Abelian-Higgs Model
Hideki Ishihara, Tatsuya Ogawa
We investigate a classical system that consists of a U(1) gauge field and a complex Higgs scalar field with a potential that breaks the symmetry spontaneously. We obtain numerical…