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Quantum applications referred to here are those applications that are dependent on the preservation of quantum information. In the millimetre wave band this is an undeveloped area of technology as:

1) the natural (digital) information contain in packets of energy hf has an energy far smaller than the thermal quanta of energy kT, meaning this signal is swamped (or hidden),

2) quantum information in the form of entangled states can easily be lost through decoherence.

However, novel interferometric techniques to circumvent problems 1) and 2) will enable existing electronics from this band being used to develop powerful new capabilities, such as fundamentally secure communications, covert radar and imaging, providing new insights into fundamental processes.

The objective of this area of research therefore is to bring the science of quantum optics into the millimetre wave band, to explore new opportunities.