Squeezing the Efimov effect

Autor(es)

Sandoval, J. H. ^{[1, 2]} ; Bellotti, F. F. ^[1] ; Yamashita, M. T. ^[2] ; Frederico, T. ^[3] ; Fedorov, D. V. ^[1] ; Jensen, A. S. ^[1] ; Zinner, N. T. ^{[1, 4]}

Afiliação do(s) autor(es)

^[1] Aarhus Univ, Dept Phys & Astron, DK-8000 Aarhus C - Denmark

^[2] Univ Estadual Paulista, UNESP, Inst Fis Teor, BR-01140070 Sao Paulo, SP - Brazil

^[3] Inst Tecnol Aeronaut, BR-12228900 Sao Jose Dos Campos, SP - Brazil

^[4] Aarhus Univ, Aarhus Inst Adv Studies, DK-8000 Aarhus C - Denmark

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS; v. 51, n. 6 MAR 28 2018.
• Citações Web of Science: 7

Resumo

The quantum mechanical three-body problem is a source of continuing interest due to its complexity and not least due to the presence of fascinating solvable cases. The prime example is the Efimov effect where infinitely many bound states of identical bosons can arise at the threshold where the two-body problem has zero binding energy. An important aspect of the Efimov effect is the effect of spatial dimensionality; it has been observed in three dimensional systems, yet it is believed to be impossible in two dimensions. Using modern experimental techniques, it is possible to engineer trap geometry and thus address the intricate nature of quantum few-body physics as function of dimensionality. Here we present a framework for studying the three-body problem as one (continuously) changes the dimensionality of the system all the way from three, through two, and down to a single dimension. This is done by considering the Efimov favorable case of a mass-imbalanced system and with an external confinement provided by a typical experimental case with a (deformed) harmonic trap. (AU)

• Processo FAPESP: 16/01816-2 - Transição dimensional em sistemas de poucos átomos
• Beneficiário: Marcelo Takeshi Yamashita
• Linha de fomento: Auxílio à Pesquisa - Regular