All causally separable quantum processes are quantum circuits with classical control of causal order
quant-ph
Submitted: 2026-09-17
Updated: 2026-09-17
Terminology
Sources
- Causal and causally separable processes
- On the definition and characterisation of multipartite causal (non)separability
- Quantum circuits with classical versus quantum control of causal order
- Quantum correlations with no causal order
- Witnessing causal nonseparability
- The simplest causal inequalities and their violation
- Multipartite Causal Correlations: Polytopes and Inequalities
- Maximal incompatibility of locally classical behavior and global causal order in multi-party scenarios
- The space of logically consistent classical processes without causal order
- Indefinite Quantum Causality
- A purification postulate for quantum mechanics with indefinite causal order
- Time-delocalized quantum subsystems and operations: on the existence of processes with indefinite causal structure in quantum mechanics
- Existence of processes violating causal inequalities on time-delocalised subsystems
- Subsystem decompositions of quantum evolutions and transformations between causal perspectives
- Identification is Pointless: Quantum Coordinates, Localisation of Events, and the Quantum Hole Argument
- Quantum-coherent mixtures of causal relations
- Fundamental limits for realising quantum processes in spacetime
- Embedding cyclic information-theoretic structures in acyclic spacetimes: no-go results for indefinite causality
- Causal structure in the presence of sectorial constraints, with application to the quantum switch
- Causal orders, quantum circuits and spacetime: distinguishing between definite and superposed causal orders
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