Light drag via electron tunneling and incoherent pumping in semiconductor three-level InAs/GaAs double quantum dot molecules

摘要： We theoretically investigate the lateral and rotary light-drag in semiconductor three-level InAs/GaAs double quantum dot molecules. No coherent laser ?elds are used and the coherence is created by interdot electron tunneling. The e?ect of interdot electron tunneling on lateral and rotary light-drag is discussed. Moreover, it is shown that applying an incoherent pumping ?eld to the probe transition changes the subluminal to superluminal condition. It is observed that the light polarization state drags opposite and along with the medium motion in superluminal and subluminal propagating regions, respectively.