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quant-ph2026
Tracing the Loop: Non-Causal Computation, Partial Traces, & Postselected Entanglement
Mark Carney
This paper gives a categorical interpretation of Baumeler \& Wolf's logically consistent non-causal circuits, connecting them to postselected quantum teleportation. Looped feedback…
math.LO2026
Inexpressibility in Exp-Minus-Log
Mark Carney
Odrzywołek defined a system Exp-Minus-Log (EML) that reduces all elementary functions over complex numbers down to a constant `', and a single two place function $E(α, β) = \exp…
quant-ph2026
The Manipulate-and-Observe Attack on Quantum Key Distribution
William Tighe, George Brumpton, Mark Carney +1
Quantum key distribution is often regarded as an unconditionally secure method to exchange a secret key by harnessing fundamental aspects of quantum mechanics. Despite the robustne…