The structure of 0+ states in 16O using real-time evolution method

α + 12C clustering in 16O has been vigorously studied. In the 2000s, a new picture was proposed that the Hoyle state, , is a Bose-Einstein condensate of three α particles by the so-called THSR framework. As a next step, many researchers are interested in 4α condensate state in 16O. In this work, a microscopic calculation named the real-time evolution method (REM) was first applied to a 4α system. As a result, the 0+ states in 16O up to 4α condensate state were expected to be reproduced simultaneously for the first time.