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A stable spin-structure found in a 3-body system with spin-3 cold atoms and its role in N-body condensates.
Liu, Y M; He, Y Z; Bao, C G.
Afiliação
  • Liu YM; Department of physics, Shaoguan University, Shaoguan, 510205, People's Republic of China.
  • He YZ; State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China.
  • Bao CG; School of Physics, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China.
Sci Rep ; 11(1): 1792, 2021 Jan 19.
Article em En | MEDLINE | ID: mdl-33469040
We have found a stable spin-structure of N [Formula: see text] 3 system in which three spin-3 atoms are trapped and coupled to total spin S [Formula: see text] 3. We have proved that a pair of this structure is nearly an exact solution for N [Formula: see text] 6 systems in a very broad district in the parameter-space. Comparing with the well-known singlet pairs, this pair is a more promising candidate to serve as a building block for large N systems with spin-3 atoms. This is because the spin-structure of the latter can be modified depending on the interactions to reduce the energy while the singlet pairs can not. In fact, we have proved that, for a specific set of strengths (a point in the parameter-space) the product state based on this pair is an exact solution of the N-body Hamiltonian. Thus, in the neighborhood of this point, the product state will appear as an approximate solution. However, how broad this neighborhood would be remains to be clarified.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Sci Rep Ano de publicação: 2021 Tipo de documento: Article País de publicação: Reino Unido

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Sci Rep Ano de publicação: 2021 Tipo de documento: Article País de publicação: Reino Unido