22 citations · 60 across the 6 of their papers we have counts for
6 papers
Revisiting electromagnetic response of superconductors in mean-field approximation
Chang-geun Oh, Haruki Watanabe
In the standard mean-field treatment of superconductors, the electron-electron interactions are assumed to be written in terms of local density operators. However, more general int…
Bulk-interface correspondence from quantum distance in flat band systems
Chang-geun Oh, Doohee Cho, Se Young Park +1
The bulk-boundary correspondence is an integral feature of topological analysis and the existence of boundary or interface modes offers direct insight into the topological structur…
The nucleation of false vacuum bubbles with compact geometries
Bum-Hoon Lee, Chul H. Lee, Wonwoo Lee +1
We investigate and classify the possible types of false vacuum bubbles in Einstein gravity. The false vacuum bubbles can occur only if gravity is taken into account. We show that t…
Fubini instantons in curved space
Bum-Hoon Lee, Wonwoo Lee, Changheon Oh +2
We study Fubini instantons of a self-gravitating scalar field. The Fubini instanton describes the decay of a vacuum state under tunneling instead of rolling in the presence of a ta…
Oscillating instanton solutions in curved space
Bum-Hoon Lee, Chul H. Lee, Wonwoo Lee +1
We investigate oscillating instanton solutions of a self-gravitating scalar field between degenerate vacua. We show that there exist O(4)-symmetric oscillating solutions in a de Si…
Instanton solutions mediating tunneling between the degenerate vacua in curved space
Bum-Hoon Lee, Chul H. Lee, Wonwoo Lee +1
We investigate the instanton solution between the degenerate vacua in curved space. We show that there exist -symmetric solutions not only in de Sitter but also in both flat…