Comment on “Stabilization of trapless Bose-Einstein condensates without any management” [Phys. Lett. A, 383(17) (2019) 2033-2038]

Publication date: Available online 23 September 2019Source: Physics Letters AAuthor(s): Zhao-Hui Wang, Ji-Xuan HouAbstractA recent paper by T. Ramakrishnan and S. Subramaniyan shows that there is an enhancement of the stability of the trapless BECs due to the inclusion of the higher-order interaction along with the two-and three-body interactions. We point out and correct the erroneous results calculated by the authors concerning the effective potential of the trapless BECs. In addition we have shown that the incorrect expression used by authors leads to notable discrepancies between such results and exact ones. Moreover, our numerical results coincide with our theoretical predictions.

Source: Physics Letters A - September 24, 2019 Category: Physics Source Type: research