Topic

Indefinite causal order

Asymptotic metrology with quantum-controlled causal order
Does quantum control of causal order yield a persistent asymptotic metrological advantage over parallel access for some regular, finite-dimensional channel family?
Solved
Extensible causality and process purification
Is every finite-dimensional extensibly causal process matrix purifiable?
- Quantum Resource Theory
- Indefinite causal order
Unsolved