Quantum Mutual Information
A central quantity in quantum information theory measuring the degree of correlation between two quantum systems, defined as I(A:B)=S(ρ_A)+S(ρ_B)-S(ρ_AB), where S is the von Neumann entropy; for a joint pure state it equals the entanglement entropy of either subsystem.
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The task designed by the study is to have the agent maximize the quantum mutual information when a local quantum probe interacts with a quantum field in Minkowski spacetime, without providing the agent any information about the spacetime metric or causal structure.
Quantum mutual information is defined as I(A:B) = S(ρ_A) + S(ρ_B) - S(ρ_AB), where S is the von Neumann entropy; for a joint pure state, it equals the entanglement entropy of either subsystem.
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The task designed by the study is to have the agent maximize the quantum mutual information when a local quantum probe interacts with a quantum field in Minkowski spacetime, without providing the agent any information about the spacetime metric or causal structure.
50%UnverifiedQuantum mutual information is defined as I(A:B) = S(ρ_A) + S(ρ_B) - S(ρ_AB), where S is the von Neumann entropy; for a joint pure state, it equals the entanglement entropy of either subsystem.
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