Scalable architecture for a room temperaturesolid-state quantum information processor

摘要

The realization of a scalable quantum information processor has emerged over the past decadeas one of the central challenges at the interface of fundamental science and engineering.Here we propose and analyse an architecture for a scalable, solid-state quantum informationprocessor capable of operating at room temperature. our approach is based on recentexperimental advances involving nitrogen-vacancy colour centres in diamond. In particular, wedemonstrate that the multiple challenges associated with operation at ambient temperature,individual addressing at the nanoscale, strong qubit coupling, robustness against disorder andlow decoherence rates can be simultaneously achieved under realistic, experimentally relevantconditions. The architecture uses a novel approach to quantum information transfer andincludes a hierarchy of control at successive length scales. moreover, it alleviates the stringentconstraints currently limiting the realization of scalable quantum processors and will providefundamental insights into the physics of non-equilibrium many-body quantum systems.