College Physics ›› 2018, Vol. 37 ›› Issue (9): 1-3.doi: 10.16854 /j.cnki.1000-0712.170730

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Converting mixed states into physically equivalent pure state by the IWOP method

ZHAN De-hui1,LU Dao-ming1,FAN Hong-yi2   

  1. 1. College of Mechanic and Electronic Engineering,Wuyi University,Wuyishan,Fujian 354300,China; 2. Department of Material Science and Engineering,University of Science and Technology of China,Hefei,Anhui 230026,China
  • Received:2017-12-28 Revised:2018-03-06 Online:2018-09-20 Published:2018-09-20

Abstract: We propose the IWOP method to convert mixed states into physically equivalent pure state,this not only brings some new explanation for the states,but also simplify the ensemble average calculation.

Key words: mixed states, pure state, density operator