supported by the National Basic Research Program of China(Grant Nos.2012CB821301 and 2005CB724502);the National Natural Science Foundation of China(Grant Nos.11474318,91336211,and 11034009);Chinese Academy of Sciences
Precision measurement of the 4s2 S1/2-3d2 D5/2 clock transition based on 40Ca+ ion at 729 nm is reported. A single 40Ca+ ion is trapped and laser-cooled in a ring Paul trap, and the storage time for the ion is more ...
Supported in part by the National Natural Science Foundation of China under Grant Nos 10947109,10875151,11175219 and 10740420550;the Knowledge Innovation Project of Chinese Academy of Sciences(KJCX2-EW-N01);the National Basic Research Program of China under Grant No 2007CB815004;the CAS/SAFEA International Partnership Program for Creative Research Teams(CXTD-J2005-1);the Fundamental Research Fund for Physics and Mathematic of Lanzhou University LZULL200908;the Fundamental Research Funds for the Central Universities(LZUJBKY-2010-160).
Density-dependent symmetry energy is a hot topic in nuclear physics.Many laboratories across the world are planning to perform related experiments to probe symmetry energy. Based on the semiclassical BoltzmannUehling-...