Information thermodynamics is constructed in generalized probabilistic theories such that entropy-non-decreasing measurements prevent second-law-violating work extraction, with explicit counterexample GPTs when this fails.
Barrett, Information processing in generalized probabilistic theories, Phys
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A standard quantum walk produces admissible post-quantum correlations exceeding Tsirelson's bound via complementarity-violating coin preparation, but these correlations are suppressed by coarse-grained position measurements.
A family of theories with non-standard composition rules match quantum Bell correlations, establishing that the composition postulate is independent of other quantum features.
citing papers explorer
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Information Thermodynamics in Generalized Probabilistic Theories
Information thermodynamics is constructed in generalized probabilistic theories such that entropy-non-decreasing measurements prevent second-law-violating work extraction, with explicit counterexample GPTs when this fails.
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Operationally Admissible Post-Quantum Correlations from a Standard Quantum Walk
A standard quantum walk produces admissible post-quantum correlations exceeding Tsirelson's bound via complementarity-violating coin preparation, but these correlations are suppressed by coarse-grained position measurements.
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The composition rule for quantum systems is not the only possible one
A family of theories with non-standard composition rules match quantum Bell correlations, establishing that the composition postulate is independent of other quantum features.