Q-ball dynamics from atomic Bose?Einstein condensates

@article{Enqvist2003QballDF,
  title={Q-ball dynamics from atomic Bose?Einstein condensates},
  author={Kari Enqvist and Mikko Laine},
  journal={Journal of Cosmology and Astroparticle Physics},
  year={2003},
  volume={2003},
  pages={003-003}
}
  • K. Enqvist, M. Laine
  • Published 16 April 2003
  • Physics
  • Journal of Cosmology and Astroparticle Physics
Relativistic scalar field theories with a conserved global charge Q often possess (meta)stable spherically symmetric soliton solutions, called Q-balls. We elaborate on the perfect formal analogy which exists between Q-balls and spherically symmetric solitons in certain non-relativistic atomic Bose–Einstein condensates, for which the dominant interatomic interaction can be tuned attractive. In a harmonic trap, present in existing experiments, the Q-ball solution is modified in an essential way… 

Figures from this paper

Propagation of self-localised Q-ball solitons in the He universe
In relativistic quantum field theories, compact objects of interacting bosons can become stable owing to conservation of an additive quantum number Q. Discovering such Q-balls propagating in the
Correspondence of I- and Q-balls as Non-relativistic Condensates
If a real scalar field is dominated by non-relativistic modes, then it approximately conserves its particle number and obeys an equation that governs a complex scalar field theory with a conserved
Propagation of self-localized Q -ball solitons in the 3He universe
In relativistic quantum field theories, compact objects of interacting bosons can become stable owing to conservation of an additive quantum number $Q$. Discovering such $Q$-balls propagating in the
Vortons in two Component Bose-Einstein Condensates
Ever since Witten's paper on superconducting cosmic strings, there has been an interest in strings with a non-trivial core structure. In particular, it is believed that such strings can form loops,
On longevity of I-ball/oscillon
A bstractWe study I-balls/oscillons, which are long-lived, quasi-periodic, and spatially localized solutions in real scalar field theories. Contrary to the case of Q-balls, there is no evident
Bose-Einstein Condensation of Magnons in Superfluid 3He
Abstract The possibility of Bose-Einstein condensation of excitations has been discussed for a long time. The phenomenon of the phase-coherent precession of magnetization in superfluid 3He and the
Review of Nontopological Solitons in Theories with U(1)-Symmetry
We provide a review of non-topological solitonic solutions arising in theories with a complex scalar field and global or gauge $U(1)$-symmetry. It covers Q-balls, homogeneous charged scalar
Duality and scaling in 3-dimensional scalar electrodynamics
Three-dimensional scalar electrodynamics, with a local U(1) gauge symmetry, is believed to be dual to a scalar theory with a global U(1) symmetry, near the phase transition point. The conjectured
Charge-Swapping Q-balls and Their Lifetimes
Abstract For scalar theories accommodating spherically symmetric Q-balls, there are also towers of quasi-stable composite Q-balls, called charge swapping Q-balls (CSQs). We investigate the
Q -balls without a potential
We study non-topological Q-ball solutions of the (3+1)-dimensional Friedberg-Lee-Sirlin two-component model. The limiting case of vanishing potential term yields an example of hairy Q-balls, which
...
1
2
...

References

SHOWING 1-10 OF 115 REFERENCES
Quantum corrections to Q -balls
Abstract We extend calculational techniques for static solitons to the case of field configurations with simple time dependence in order to consider quantum effects on the stability of Q -balls.
Formation and propagation of matter-wave soliton trains
TLDR
The formation of bright solitons of 7Li atoms in a quasi-one-dimensional optical trap is reported, by magnetically tuning the interactions in a stable Bose–Einstein condensate from repulsive to attractive.
Dynamics of the Bose-Einstein condensate: quasi-one-dimension and beyond
It is shown that the quasi-one-dimensional Bose-Einstein condensate is experimentally accessible and rich in intriguing phenomena. We demonstrate numerically and analytically the existence, stability
Dynamics of collapsing and exploding Bose–Einstein condensates
TLDR
The dynamics of how a Bose–Einstein condensate collapses and subsequently explodes when the balance of forces governing its size and shape is suddenly altered is explored.
New physics in a nutshell, or Q-ball as a power plant
Future experiments may discover new scalar particles with global charges and couplings that allow for solitonic states. If the effective potential has flat directions, the scalar VEV inside a large
Thermodynamics of non-topological solitons
In theories with low energy supersymmetry breaking, the effective potential for squarks and sleptons has generically nearly flat directions, V (φ) ∼ M 4 (log(φ/M)) n . This guarantees the existence
Bosons in anisotropic traps: Ground state and vortices.
  • Dalfovo, Stringari
  • Physics, Medicine
    Physical review. A, Atomic, molecular, and optical physics
  • 1996
TLDR
It is shown that the presence of vortices significantly increases the stability of the condensate in the case of attractive interactions, and the critical angular velocity for production of vorts is calculated.
Conditions for Bose-Einstein condensation in magnetically trapped atomic cesium.
TLDR
In all calculated elastic and inelastic two-body rates, a pronounced resonance structure is found, which can be understood in terms of the interplay between the singlet-triplet interaction and the hyperfine, Zeeman, and magnetic dipole interactions.
Analytical and numerical properties of Q-balls
Abstract Stable non-topological solitons, Q-balls, are studied using analytical and numerical methods. Three different physically interesting potentials that support Q-ball solutions are considered:
Q Ball formation in the gravity mediated SUSY breaking scenario
We study the formation of Q balls which are made of flat directions that appear in the supersymmetric extension of the standard model in the context of gravity-mediated supersymmetry breaking. The
...
1
2
3
4
5
...