简介:Thispaperproposesaschemewhereonecanrealizequantumcloningofanunknowntwo-atomentangledstatewithassistanceofastatepreparerincavityQED.Thefirststageoftheschemerequiresusualteleportation.Inthesecondstageofthescheme,withtheassistanceofthepreparer,theperfectcopiesofanunknownatomicentangledstatecanbeproduced.