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MO: Fachverband Molekülphysik

MO 12: Poster – Cold Atoms and Molecules, Matter Waves (joint session Q/A/MO)

MO 12.16: Poster

Dienstag, 11. März 2025, 14:00–16:00, Tent

Effects of dipolar cutoff shapes on numerical calculation of properties of dipolar condensates — •Denis Mujo¹ and Antun Balaž^1,2 — ¹Center for the Study of Complex Systems, Institute of Physics Belgrade, University of Belgrade, Serbia — ²Serbian Academy of Sciences and Arts

Here we study the impact of various shapes of dipolar cutoffs on the numerical calculation of ground state properties of dipolar Bose-Einstein condensates (BECs) and quantum droplets. In particular, we examine three distinct setups: the pure dipolar potential, where no cutoff is introduced; the analytically known spherical cutoff; and the cylindrical cutoff, that partially needs to be calculated numerically [1]. To understand how these different cutoff shapes affect the calculated values of physical properties of the ground state, we systematically vary key discretization parameters associated with each configuration. We demonstrate how the calculation precision of the cutoff translates into the precision of numerically obtained values of condensate and droplet properties.
[1] H.-Y. Lu et al., Phys. Rev. A 82, 023622 (2010).

Keywords: Bose-Einstein condensate; Quantum droplet; Dipolar cutoff; Numerical calculation