We propose an entirely new experimental photonic qubit interface which will enable quantum connections between common material qubits such as ions or atoms.
Localized electron emission from nanostructures can be achieved with the aid of excitation of plasmons with short optical pulses.
Keep Information Safe at Sea with Quantum Physics
Qubits must typically be kept isolated and very cold to minimize interactions with the external environment. These interactions lead to qubit decoherence - essentially loss of quantum information - and adversely affect the efficiency of quantum computing schemes. However, it may be possible to not only control these environmental interactions, but harness them in a constructive manner that results in entanglement, versus destroying it. The result is a scalable, more efficient, quantum computing platform that doesn't require cryogenics to operate.
Reducing the propagation loss, while increasing electric field confinement, is a major goal of nanophotonics for future high bandwidth, high processing speed computational requirements. However, in the current state-of-the-art metal waveguides, the propagating signal suffers restrictive limiting losses as the size of the components are reduced to the nano-scale regime. In this project we seek to exploit the propagation of surface plasmon nanojets on nanostructured thin films in order to reduce propagation losses while retaining field confinement. This improvement will allow advances into future nanophotonic-based computational platforms that will leapfrog Moore’s Law.
ORNL is developing quantum information tools to help secure the electric grid. Researchers are working to extend the range and reduce the cost of quantum key distribution.