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Interest in ALOHA has waned because its throughput is low in comparison to other more complex MAC protocols. Yet those protocols suffer substantial performance degradation in networks with long relative propagation delay. Abramson's well accepted analysis of ALOHA estimates a maximum throughput of 18.6% assuming an infinite number of nodes and a Poisson distribution of transmitted packets. Previous...
Quantum parameter estimation, the ability to precisely obtain a classical value in a quantum system, is very important to many key quantum technologies. Many of these technologies rely on an optical probe, either coherent or squeezed states to make a precise measurement of a parameter ultimately limited by quantum mechanics. We use this technique to theoretically model, simulate and validate by experiment...
This paper provides an in context advance look at the practical implications to the Australian Defence Force and general laser community of the pending update to the premier Australian and New Zealand laser safety standard. It discusses the significant changes to the standard, rationale and implications such as the revision of the maximum permissible exposure (MPE) limits, the changes classification...
We simultaneously generate photon-subtracted squeezed vacuum and squeezed vacuum at three frequencies from an optical parametric oscillator by utilizing its frequency nondegenerate side-bands. Quantum non-Gaussianity is demonstrated by applying a novel character witness.
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