Quantum computation with quantum dots and terahertz cavity quantum electrodynamics

作     者：Mark S. Sherwin Atac Imamoglu Thomas Montroy 

作者机构：Department of Physics University of California at Santa Barbara Santa Barbara California 93106 Center for Quantum Computation and Coherence in Nanostructures Quantum Institute University of California at Santa Barbara Santa Barbara California 93106 Department of Electrical and Computer Engineering University of California at Santa Barbara Santa Barbara California 93106 

出 版 物：《Physical Review A》 (物理学评论A辑：原子、分子和光学物理学)

年 卷 期：1999年第60卷第5期

页      面：3508-3508页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

摘      要：A quantum computer is proposed in which information is stored in the two lowest electronic states of doped quantum dots (QD’s). Many QD’s are located in a microcavity. A pair of gates controls the energy levels in each QD. A controlled-NOT (C-NOT) operation involving any pair of QD’s can be effected by a sequence of gate-voltage pulses which tune the QD energy levels into resonance with frequencies of the cavity or a laser. The duration of a C-NOT operation is estimated to be much shorter than the time for an electron to decohere by emitting an acoustic phonon.