"No-communication theorem"@en . "1488320"^^ . 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"1117643835"^^ . . . . . . "Das No-Communication-Theorem ist ein Satz aus der Quanteninformationstheorie, der besagt, dass Messungen an einem quantenmechanischen Teilsystem nicht benutzt werden k\u00F6nnen, um Informationen zu einem anderen Teilsystem zu \u00FCbertragen.Dies gilt selbst dann, wenn sich das System in einem verschr\u00E4nkten Zustand befindet.Mithilfe der Bellschen Ungleichung konnten Verletzungen des lokalen Realismus gezeigt werden.Das No-Communication-Theorem ist nun wichtig, um zu verstehen, dass diese nicht-lokalen Korrelationen dennoch nicht benutzt werden k\u00F6nnen, um \u00FCberlichtschnell zu kommunizieren.In Anlehnung an Einsteins Einwurf der \u201Espukhaften Fernwirkung\u201C (EPR-Paradoxon) k\u00F6nnte man das No-Communication-Theorem grob als \u201Ees gibt keine spukhafte Fernkommunikation\u201C zusammenfassen.Die Kausalit\u00E4t wird durch diese Art von Messungen folglich nicht verletzt."@de . . . . . . . . . . . . . "Teorema di non-comunicazione"@it . . . . . . . . . . . . . . . . . . . . . "16469"^^ . . . . . "Das No-Communication-Theorem ist ein Satz aus der Quanteninformationstheorie, der besagt, dass Messungen an einem quantenmechanischen Teilsystem nicht benutzt werden k\u00F6nnen, um Informationen zu einem anderen Teilsystem zu \u00FCbertragen.Dies gilt selbst dann, wenn sich das System in einem verschr\u00E4nkten Zustand befindet.Mithilfe der Bellschen Ungleichung konnten Verletzungen des lokalen Realismus gezeigt werden.Das No-Communication-Theorem ist nun wichtig, um zu verstehen, dass diese nicht-lokalen Korrelationen dennoch nicht benutzt werden k\u00F6nnen, um \u00FCberlichtschnell zu kommunizieren.In Anlehnung an Einsteins Einwurf der \u201Espukhaften Fernwirkung\u201C (EPR-Paradoxon) k\u00F6nnte man das No-Communication-Theorem grob als \u201Ees gibt keine spukhafte Fernkommunikation\u201C zusammenfassen.Die Kausalit\u00E4t wird durch d"@de . . "In physics, the no-communication theorem or no-signaling principle is a no-go theorem from quantum information theory which states that, during measurement of an entangled quantum state, it is not possible for one observer, by making a measurement of a subsystem of the total state, to communicate information to another observer. The theorem is important because, in quantum mechanics, quantum entanglement is an effect by which certain widely separated events can be correlated in ways that, at first glance, suggest the possibility of communication faster-than-light. The no-communication theorem gives conditions under which such transfer of information between two observers is impossible. These results can be applied to understand the so-called paradoxes in quantum mechanics, such as the EPR "@en . "\u0646\u0638\u0631\u064A\u0629 \u0639\u062F\u0645 \u0627\u0644\u0627\u062A\u0635\u0627\u0644"@ar . . . 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"\u0422\u0435\u043E\u0440\u0435\u043C\u0430 \u043F\u0440\u043E \u0437\u0430\u0431\u043E\u0440\u043E\u043D\u0443 \u043A\u043E\u043C\u0443\u043D\u0456\u043A\u0430\u0446\u0456\u0457"@uk . . . . . . "In physics, the no-communication theorem or no-signaling principle is a no-go theorem from quantum information theory which states that, during measurement of an entangled quantum state, it is not possible for one observer, by making a measurement of a subsystem of the total state, to communicate information to another observer. The theorem is important because, in quantum mechanics, quantum entanglement is an effect by which certain widely separated events can be correlated in ways that, at first glance, suggest the possibility of communication faster-than-light. The no-communication theorem gives conditions under which such transfer of information between two observers is impossible. These results can be applied to understand the so-called paradoxes in quantum mechanics, such as the EPR paradox, or violations of local realism obtained in tests of Bell's theorem. In these experiments, the no-communication theorem shows that failure of local realism does not lead to what could be referred to as \"spooky communication at a distance\" (in analogy with Einstein's labeling of quantum entanglement as requiring \"spooky action at a distance\" on the assumption of QM's completeness)."@en . 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"In fisica, il teorema di non comunicazione noto anche come principio di non segnalazione quantistica \u00E8 un \"no-go theorem\" dalla teoria dell'informazione quantistica che afferma che, durante la misurazione di uno stato in entanglement quantistico, non \u00E8 possibile per un osservatore macroscopico, misurando un sottosistema dello stato totale, comunicare informazioni a un altro osservatore in modo istantaneo (cio\u00E8 a velocit\u00E0 maggiore di quella della luce). Il teorema \u00E8 importante perch\u00E9, nella meccanica quantistica, l'entanglement quantistico \u00E8 un effetto mediante il quale determinati eventi ampiamente separati possono essere correlati in modi che suggeriscono la possibilit\u00E0 di comunicazione istantanea. Il teorema di non comunicazione fornisce condizioni in cui tale trasferimento di informazio"@it . . . "In fisica, il teorema di non comunicazione noto anche come principio di non segnalazione quantistica \u00E8 un \"no-go theorem\" dalla teoria dell'informazione quantistica che afferma che, durante la misurazione di uno stato in entanglement quantistico, non \u00E8 possibile per un osservatore macroscopico, misurando un sottosistema dello stato totale, comunicare informazioni a un altro osservatore in modo istantaneo (cio\u00E8 a velocit\u00E0 maggiore di quella della luce). Il teorema \u00E8 importante perch\u00E9, nella meccanica quantistica, l'entanglement quantistico \u00E8 un effetto mediante il quale determinati eventi ampiamente separati possono essere correlati in modi che suggeriscono la possibilit\u00E0 di comunicazione istantanea. Il teorema di non comunicazione fornisce condizioni in cui tale trasferimento di informazioni tra due osservatori \u00E8 impossibile. Questi risultati possono essere applicati per comprendere i cosiddetti paradossi della meccanica quantistica, come il paradosso di EPR, o le violazioni del realismo locale ottenute nel teorema di Bell. In questi esperimenti, il teorema di non-comunicazione mostra che il fallimento del realismo locale non porta a quella che potrebbe essere definita \"comunicazione spettrale a distanza\"."@it . . "No-Communication-Theorem"@de . . 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