Unified picture of Q-balls and boson stars via catastrophe theory

Journal Article · Tue Jun 15 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.124041· OSTI ID:21408092

Tamaki, Takashi; Sakai, Nobuyuki ^[1]

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1. Department of Physics, General Education, College of Engineering, Nihon University, Tokusada, Tamura, Koriyama, Fukushima 963-8642 (Japan)

We make an analysis of Q-balls and boson stars using catastrophe theory, as an extension of the previous work on Q-balls in flat spacetime. We adopt the potential V{sub 3}({phi})=(m{sup 2}/2){phi}{sup 2}-{mu}{phi}{sup 3}+{lambda}{phi}{sup 4} for Q-balls and that with {mu}=0 for boson stars. For solutions with |g{sup rr}-1|{approx}1 at its peak, stability of Q-balls has been lost regardless of the potential parameters. As a result, phase relations, such as a Q-ball charge versus a total Hamiltonian energy, approach those of boson stars, which gives us a unified picture of Q-balls and boson stars.

• OSTI ID: 21408092
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 12; Other Information: DOI: 10.1103/PhysRevD.81.124041; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
BOSONS
HAMILTONIANS
MATHEMATICAL SOLUTIONS
PEAKS
SPACE-TIME
STABILITY
STARS
MATHEMATICAL OPERATORS
QUANTUM OPERATORS