Physical Review AComment on ‘‘Lasing without inversion in a V system due to trapping of modified atomic states’’Yifu Zhu, Min XiaoPublished Mar 1, 1994• 9 citationsPublisherAbstractWe point out a mistake in a recent paper [Tan, Lu, and Harrison, Phys. Rev. A 46, R3613 (1992)] and show that, contrary to the authors' claim, lasing without inversion is impossible in a closed V system driven by a single coherent field only.DOI10.1103/physreva.49.2203