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| Chemistrylanddotcom |
Single photons are a key ingredient in quantum information systems, but producing them on demand is difficult.
This is a very short article on using the Rydberg excitation state. From the Wiki world:
A quantum computer is a device for computation that makes direct use of quantum mechanical phenomena, such as superposition and entanglement, to perform operations on data. Quantum computers are different from digital computers based on transistors. Whereas digital computers require data to be encoded into binary digits (bits), quantum computation utilizes quantum properties to represent data and perform operations on these data.
Eventually, we'll hit the limit we can print physically, Moore's Law or More Than Moore. After such a milestone/limit, carbon nanotubes will march us towards the technological singularity, an idea that apparently had its Genesis in the 19th century. I wryly compare this to Prometheus ("Forethought").
Physics Today: A Rydberg-atom photon source
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