Measurement-induced disturbance and thermal negativity of qutrit-qubit   mixed spin chain
  We investigate the quantum correlation in a qutrit-qubit mixed spin chain based on measurement-induced disturbance (MID) [S. Luo, Phys. Rev. A, 77, (2008) 022301]. We also compare MID and thermal entanglement measured by negativity and illustrate their different characteristics. 
Guofeng Zhang, Yuchen Hou, Ailing Ji
quant-ph