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quant-ph2017★ 27 cited
Analysing causal structures with entropy
Mirjam Weilenmann, Roger Colbeck
A central question for causal inference is to decide whether a set of correlations fit a given causal structure. In general, this decision problem is computationally infeasible and…
quant-ph2017★ 5 cited
Keyring models: an approach to steerability
Carl A. Miller, Roger Colbeck, Yaoyun Shi
If a measurement is made on one half of a bipartite system, then, conditioned on the outcome, the other half has a new reduced state. If these reduced states defy classical explana…