Entanglement Purification of Nonlocal Quantum‐Dot‐Confined Electrons Assisted by Double‐Sided Optical Microcavities
Entanglement Purification of Nonlocal Quantum‐Dot‐Confined Electrons Assisted by Double‐Sided Optical Microcavities
Abstract A nondestructive parity‐check detector (PCD) scheme for two single‐electron quantum dots embedded in double‐sided optical microcavities is presented here. Using a polarization‐entangled photon pair, the PCD works in a parallel style and is robust to the phase fluctuation of the optical path length. In addition, based on this nondestructive …