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    If λ-distribution held, superluminal signaling would be p... — Carmelics
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    Home/Modality & Possibility
    HistoryEditSee Inverse

    If λ-distribution held, superluminal signaling would be possible in principle

    Causation
    ?Rate how convincing each reason is below to see the overall strength.
    1 reason for
    2 reasons against

    Reasons For

    1 perspective
    Reason for
    ?
    • 1.If λ-distribution held, it would be possible in theory to arrange ensembles of particle pairs in which controllable probabilistic dependence would not be washed out
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    • 2.If controllable probabilistic dependence is not washed out in such ensembles, the statistics of distant outcomes would depend on a nearby controllable factor
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    • 3.Dependence of distant outcome statistics on a nearby controllable factor constitutes superluminal signaling
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    Reasons Against

    2 perspectives
    Reason against 1 of 2
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    • 1.λ-distribution requires controlling the hidden variable distribution across ensembles, but hidden variables are by definition inaccessible to experimental manipulation.
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    • 2.A signaling protocol that depends on controlling inaccessible parameters is not 'possible in principle' in any operationally meaningful sense—it is nomologically impossible given the theory's own constraints.
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    • 3.Therefore, even granting λ-distribution, the inference to superluminal signaling conflates logical possibility with physical possibility within the theory.
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    Reason against 2 of 2
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    • 1.Tim Maudlin and others distinguish between parameter dependence and outcome dependence: only parameter dependence, not outcome dependence, enables signaling regardless of ensemble structure.
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    • 2.Bell correlations in standard quantum mechanics exhibit outcome dependence but not parameter dependence, so introducing λ-distribution restores local outcome correlations without introducing parameter dependence.
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    • 3.Without parameter dependence, no manipulation of local settings translates into a controllable statistical difference at the distant wing, undermining P3 of the supporting argument.
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    Modality & PossibilityCausation

    Related

    A signaling protocol that depends on controlling inaccessible parameters is not ...Bell correlations in standard quantum mechanics exhibit outcome dependence but n...Dependence of distant outcome statistics on a nearby controllable factor constit...If controllable probabilistic dependence is not washed out in such ensembles, th...
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    If λ-distribution held, it would be possible in theory to arrange ensembles of p...Therefore, even granting λ-distribution, the inference to superluminal signaling...Tim Maudlin and others distinguish between parameter dependence and outcome depe...Without parameter dependence, no manipulation of local settings translates into ...λ-distribution requires controlling the hidden variable distribution across ense...

    Similar

    Violation of λ-independence would imply the possibility of superlumina...86%The necessary and sufficient conditions for superluminal signaling dif...84%In models that permit violation of λ-independence, superluminal signal...83%Dependence of distant outcome statistics on a nearby controllable fact...82%

    Source

    AI-extracted1/3 agreementValid
    SEP: qm-action-distance
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    The argument for the sufficiency of these conditions is also straightforward. If λ-distribution held, it would be possible in theory to arrange ensembles of particle pairs in which controllable probabilistic dependence would not be washed out, and accordingly the statistics of distant outcomes would depend on the nearby controllable factor. (For a proof that these conditions are sufficient for superluminal signaling in certain deterministic hidden variables theories, see Valentini 2002.)
    Extraction notes

    Validity: Extracted via Max plan + API grounding/validity checks

    Details

    Type
    claim
    Perspectives
    3 (1 for, 2 against)
    Edits
    1 edit