Molecular-Spin Quantum Computing by the Use of Electron and Nuclear Spins

摘要

Pulsed electron nuclear double resonance (ENDOR) spin technology has been invoked for realization of a quantum computer (QC). Sample preparation of molecular spins, quantum operations, and measurements have been performed successfully, showing that ENDOR QC would be accessible. We have carried out pulsed ENDOR-based QC experiments of typical stable organic radicals, malonyl radical and dipehnyl nitroxide (DPNO). Time proportional phase incrementation (TPPI) technique was applied in order to characterize pseudo entangled states. The appearance of the entanglement between electron and nuclear spins is discussed based on the pulsed ENDOR-QC experiments with TPPI detection, demonstrating the entanglement in molecular spin systems.