S. Kasuya, M. Kawasaki, Fuminobu Takahashi

Research output: Contribution to journalArticlepeer-review

94 Citations (Scopus)


We find that there exists a soliton-like solution "I-ball" in theories of a real scalar field if the scalar potential satisfies appropriate conditions. Although the I-ball does not have any topological or global U(1) charges, its stability is ensured by the adiabatic invariance for the oscillating field.

Original languageEnglish
Pages (from-to)99-106
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number3-4
Publication statusPublished - 2003 May 1


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