194 citations · 1.2k across the 78 of their papers we have counts for
6 papers · 1 filter
Equivalence of relativistic causal structure and process terminality
Aleks Kissinger, Matty Hoban, Bob Coecke
In general relativity, `causal structure' refers to the partial order on space-time points (or regions) that encodes time-like relationships. Recently, quantum information and quan…
Picture-perfect Quantum Key Distribution
Aleks Kissinger, Sean Tull, Bas Westerbaan
We provide a new way to bound the security of quantum key distribution using only two high-level, diagrammatic features of quantum processes: the compositional behavior of compleme…
Universal MBQC with generalised parity-phase interactions and Pauli measurements
Aleks Kissinger, John van de Wetering
We introduce a new family of models for measurement-based quantum computation which are deterministic and approximately universal. The resource states which play the role of graph…
Fully graphical treatment of the quantum algorithm for the Hidden Subgroup Problem
Stefano Gogioso, Aleks Kissinger
The abelian Hidden Subgroup Problem (HSP) is extremely general, and many problems with known quantum exponential speed-up (such as integers factorisation, the discrete logarithm an…
Picturing Indefinite Causal Structure
Aleks Kissinger, Sander Uijlen
Following on from the notion of (first-order) causality, which generalises the notion of being tracepreserving from CP-maps to abstract processes, we give a characterization for th…
A categorical semantics for causal structure
Aleks Kissinger, Sander Uijlen
We present a categorical construction for modelling causal structures within a general class of process theories that include the theory of classical probabilistic processes as wel…