A toy model for the dipolar-induced resonance in quasi-one-dimensional systems

作者：Bartolo N^*; Papoular D J; Recati A; Menotti C

来源：The European Physical Journal - Special Topics, 2015, 224(3): 477-482.

DOI：10.1140/epjst/e2015-02377-y

We discuss the properties of the effective dipolar interaction for two particles tightly confined along a one-dimensional tube, stressing the emergence of a single dipolar-induced resonance in a regime for which two classical dipoles would just repel each other. We present a toy-model potential reproducing the main features of the effective interaction: a non-zero-range repulsive potential competing with an attractive contact term. The existence of a single resonance is confirmed analytically. The toy model is than generalized to investigate the interplay between dipolar and contact interaction, giving an intuitive interpretation of the resonance mechanism.

• 出版日期2015-4