A review of the progress in the physics of ultracold neutrons (UCN), starting with the first experimental studies, is given. Problems dealt with by the author under the supervision of Fyodor L’vovich Shapiro are presented. It is shown how these problems were gradually solved and how their relation to other issues in physics was revealed. A review of the present status of UCN physics is given, and the prospects are discussed.

PACS: 13.30.Ce, 14.20.Dh (all) DOI: 10.1070/PU1996v039n03ABEH000138 URL: https://ufn.ru/en/articles/1996/3/d/ A1996UL16500004 Citation: Ignatovich V K "Ultracold neutrons — discovery and research" Phys. Usp. 39 283–304 (1996) BibTexBibNote ® (generic)BibNote ® (RIS) MedlineRefWorks PT Journal Article TI Ultracold neutrons — discovery and research AU Ignatovich V K FAU Ignatovich VK DP 10 Mar, 1996 TA Phys. Usp. VI 39 IP 3 PG 283-304 RX 10.1070/PU1996v039n03ABEH000138 URL https://ufn.ru/en/articles/1996/3/d/ SO Phys. Usp. 1996 Mar 10;39(3):283-304 Оригинал: Игнатович В К «Ультрахолодные нейтроны — открытие и исследование» УФН 166 303–326 (1996); DOI: 10.3367/UFNr.0166.199603d.0303