E.A. Kolganovaa,b aJoint Institute for Nuclear Research, Dubna, Moscow Region, Russian Federation bUniversity "Dubna", Universitetskaya str. 19, Dubna, Moscow Region, 141982, Russian Federation
The structure of atomic nuclei contains many examples showing phase transitions when the excitation energy or the moment of rotation increases and when the numbers of nucleons change. These are phase transitions of equilibrium shape and structures of ground and low-lying excited states of nuclei, connected with change of their symmetry. The problem of phase transitions has caused a new wave of research of the structure of atomic nuclei. In this review examples of phase transitions are discussed. Possibilities of describing these transitions within a collective model with a Hamiltonian dependent on a small number of dynamic variables and microscopic aspects of phase transitions are discussed.
Keywords: nuclear physics, phase transitions, nuclear structure, nuclear shapes, deformation, collective excitations PACS:21.10.Re, 21.10.Dr (all) DOI:10.3367/UFNe.2020.06.038787 Citation: Jolos R V, Kolganova E A "Phase transitions in atomic nuclei" Phys. Usp., accepted
Received: 12th, April 2020, revised: 12th, June 2020, accepted: 13th, June 2020