Entanglement of two-level atoms'quantum states in a strong thermal radiation field

摘要

The two-level atom is described by Pauli sign and environment is described by infinite harmonic particle thermal reser-voir.We have studied the entanglement of two-level atoms which are put in the strongly thermal radiation field.The two-level atoms' re-ducible density rectangular array is obtained.We discuss the properties of entanglement by virtue of concurrence.It is shown that the two two-level atoms initially situated in different coherent superposition states,entanglement of atoms have obvious dissimilarity.