منابع مشابه
Efimov states in asymmetric systems
– The conditions for occurrence of the Efimov effect is briefly described using hyperspherical coordinates. The strength of the effective hyperradial ρ −2 potential appearing for two or three large scattering lengths is computed and discussed as function of two independent mass ratios of the three constituent particles. The effect is by far most pronounced for asymmetric systems with three very...
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We investigate conditions for the occurrence of E mov states in the recently discovered halo nuclei. These states could appear in systems, where one neutron is added to a pronounced one-neutron halo nucleus. Detailed calculations of the properties of the states are presented and promising candidates are discussed. PACS numbers: 21.10.Gv, 21.45.+v Introduction. The E mov e ect was discovered the...
متن کاملEfimov States for 4 He Trimers ?
T. González-Lezana,1 J. Rubayo-Soneira,2 S. Miret-Artés,1 F. A. Gianturco,3 G. Delgado-Barrio,1 and P. Villarreal1,* 1Instituto de Matemáticas y Fı́sica Fundamental, Consejo Superior de Investigaciones Cientı́ficas, Serrano, 123, 28006 Madrid, Spain 2Instituto Superior de Ciencia y Tecnologı́a Nucleares, Ciudad de La Habana, 6163 Cuba 3Department of Chemistry, The University of Rome, Cittá Univers...
متن کاملEfimov states with strong three-body losses
Introduction. – Motivated by nuclear physics, Efimov discovered that three particles with short-ranged two-body interactions of scattering length |a| = ∞ can support an infinite series of weakly bound trimer states [1]. In contrast to systems of nucleons or of He atoms, ultracold gases of alkali metal atoms offer the possibility to tune a by using a Feshbach resonance, and thus to go more deepl...
متن کاملDirac bound states of anharmonic oscillator in external fields
Weexplore the effect of the externalmagnetic andAharonov–Bohm (AB) flux fields on the energy levels of Dirac particle subjects to mixed scalar and vector anharmonic oscillator field in the twodimensional (2D) space. We calculate the exact energy eigenvalues and the correspondingun-normalized two-spinor-components wave functions in terms of the chemical potential parameter, magnetic field streng...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1999
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.82.2844