4 papers
Decoherence without the state: A causal quantum Darwinist approach
Nick Ormrod, Tein van der Lugt, Yìlè Yīng +1
The consistent histories formalism can be used to describe histories comprised of events across many systems, times, and places, plausibly rich enough to describe our experiences o…
Unitary causal decompositions: a combinatorial characterisation via lattice theory
Tein van der Lugt, Robin Lorenz
If a unitary transformation has a decomposition into a quantum circuit with no directed path from input to output , then does not influence through the overall unita…
An order-theoretic circuit syntax and characterisation of the concept lattice
Tein van der Lugt
We take an order-theoretic approach to circuit (string diagram) syntax, treating a circuit as a partial order with additional input-output structure. We define morphisms between ci…
Possibilistic and maximal indefinite causal order in the quantum switch
Tein van der Lugt, Nick Ormrod
It was recently found that the indefinite causal order in the quantum switch can be certified device-independently when assuming the impossibility of superluminal influences. Here…