text: import numpy as np
  import qiskit.quantum_info as qi
  
  def concurrence_single(dm):
      # dm = qi.DensityMatrix(dm)
      con = qi.concurrence(dm)
      return con
  
  def concurrence(dm_tensor):
      con_list = list(map(concurrence_single, dm_tensor))
      con_tensor = np.array(con_list)
      return con_tensor