Nuclear clustering is one of the essential features of nuclear systems. Various rich cluster phenomena have been discovered in a wide region of nuclear chart as functions of proton and neutron numbers and excitation energy. Examples are cluster formation/breaking at nuclear surface in low-lying states, cluster excitation and resonances in highly excited states, molecular orbital structures in neutron-rich Be and Ne, cluster gas and linear chain structures in multi-cluster systems. To make systematic study of such cluster phenomena, we apply a method of antisymmetrized molecular dynamics (AMD) and its extended versions. The method is a useful approach applicable to the ground and excited states of general nuclei. One of the advantages of the method is that it is able to describe various cluster phenomena including cluster formation and breaking as well as shell-model like structures. In this paper, we discuss some topics of cluster phenomena in light nuclei based on AMD calculations.
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