Abstract Objectives: To derive assumptions of Bell Inequalities from one single postulate – Absolute Postulate of Universe – as mentioned by the author S.Bagaria. Method: It focuses on the assumptions – locality, reality, measurement independence and counter-factual definiteness - made in proving Bell’s Inequality and derive them from Absolute Postulate of the Universe. Then, its consequences are studied like PR Boxes being real, DI-QKD, quantum information theory, randomness and foundations of quantum mechanics. Findings: From Absolute Postulate of the Universe, it has been showed that there is absolute determinism in world, resulting in zero theoretical uncertainty. Thus, the algebraically maximal correlations (S = 4) are possible. Thus, the PR-boxes can be real. But, Tsirelson Bound can’t be violated in quantum computing as HUP can’t be violated in Quantum Physics. Novelty: The four assumptions of Bell Inequality are derived from Absolute Postulate of the Universe. The correlations in the universe can be maximal yet unverifiable experimentally. EPR paradox is resolved without assuming faster than light transfer of information as the world is shown to be “non-local with no-signalling”. Keywords: Bell inequality, Popescu–Rohrlich box, Tsirelson bound, Quantum nonlocality, No-signalling, CHSH inequality, Quantum violation, absolute determinism
Abstract Objectives: To derive assumptions of Bell Inequalities from one single postulate – Absolute Postulate of Universe – as mentioned by the author S.Bagaria. Method: It focuses on the assumptions – locality, reality, measurement independence and counter-factual definiteness - made in proving Bell’s Inequality and derive them from Absolute Postulate of the Universe. Then, its consequences are studied like PR Boxes being real, DI-QKD, quantum information theory, randomness and foundations of quantum mechanics. Findings: From Absolute Postulate of the Universe, it has been showed that there is absolute determinism in world, resulting in zero theoretical uncertainty. Thus, the algebraically maximal correlations (S = 4) are possible. Thus, the PR-boxes can be real. But, Tsirelson Bound can’t be violated in quantum computing as HUP can’t be violated in Quantum Physics. Novelty: The four assumptions of Bell Inequality are derived from Absolute Postulate of the Universe. The correlations in the universe can be maximal yet unverifiable experimentally. EPR paradox is resolved without assuming faster than light transfer of information as the world is shown to be “non-local with no-signalling”. Keywords: Bell inequality, Popescu–Rohrlich box, Tsirelson bound, Quantum nonlocality, No-signalling, CHSH inequality, Quantum violation, absolute determinism
Bell nonlocality is the experimentally testable incompatibility between quantum correlations and explanations based on local hidden variables. Its significance now extends beyond the foundations of quantum mechanics: a Bell-inequality violation can certify entanglement, randomness, measurement incompatibility, and cryptographic security without requiring a detailed model of the devices producing the observed data. This article develops the mathematical structure of Bell experiments and explains its role in device-independent quantum information. Conditional probability distributions are classified into local, quantum, and no-signalling sets; the Clauser-Horne-Shimony-Holt inequality is derived, and its classical, quantum, and algebraic limits are distinguished. Tsirelson’s bound is obtained from the CHSH operator, while Popescu-Rohrlich correlations demonstrate that no-signalling alone does not identify the quantum set. The relation between entanglement and nonlocality is examined through local entangled states, hidden nonlocality, and activation. Nonlocal games, semidefinite relaxations, self-testing, certified randomness, and device-independent quantum key distribution are treated as operational consequences of Bell violation. Particular attention is given to entropy accumulation, finite-data security, loophole-free experiments, and the limitations of device independence. Bell nonlocality emerges as both a foundational separation between classical and quantum causal models and a quantitative resource for cryptographic and informational tasks.
Abstract One of the Bell’s assumptions in the original derivation of his inequalities was the hypothesis of locality, i.e., the absence of the influence of two remote measuring instruments on one another. That is why violations of these inequalities observed in experiments are often interpreted as a manifestation of the nonlocal nature of quantum mechanics, or a refutation of a local realism. It is well known that the Bell’s inequality was derived in its traditional form, without resorting to the hypothesis of locality and without the introduction of hidden variables, the only assumption being that the probability distributions are nonnegative. This can therefore be regarded as a rigorous proof that the hypothesis of locality and the hypothesis of existence of the hidden variables not relevant to violations of Bell’s inequalities. The physical meaning of the obtained results is examined. Physical nature of the violation of the Bell inequalities is explained under new EPR-B nonlocality postulate. We show that the correlations of the observables involved in the Bohm–Bell type experiments can be expressed as correlations of classical random variables. The revisited Bell type inequality in canonical notatons reads 〈AB〉 + 〈A’B〉 + 〈AB’〉 − 〈A’B’〉 ⩽ 6.
A no-signaling theory may, in principle, be more nonlocal than quantum mechanics: the Popescu--Rohrlich box reaches the algebraic Clauser--Horne--Shimony--Holt value 4, whereas nature stops at the Tsirelson value 22. Absolute Frame Theory (AFT) produces nonlocal correlations---two systems entangled in M share a single point of the substratum A (Axiom II)---and forbids superluminal signaling (the channel is Bremermann-bounded). We ask where those correlations fall, and we establish, by two independent routes, that they cannot exceed the Tsirelson bound: AFT admits no super-quantum correlations. The operator route proves, inside the reconstructed Hilbert theory, the Tsirelson operator identity, with the local commutativity [Ai,Bj]=0 itself derived from AFT structure---the tensor factorization that local tomography supplies and the field microcausality of the constrained embedding---rather than assumed. The information route reduces the bound to a physical principle: AFT's shared resource is read out through a completely positive, trace-preserving channel of finite classical capacity (a theorem of the channel, founded on action quantization and the trace over the inaccessible fiber), this channel obeys the data-processing inequality, and the combination places AFT in the class that satisfies Information Causality, which singles out 22 among the no-signaling theories. We state plainly what this does and does not achieve. It does not close the question of why the bound is 22 rather than some other value: both routes, chased to their foundations, terminate at the same posited fact---the M--A signature transition (the Wick rotation) that installs the complex-Hilbert structure---and finite capacity alone, stripped of that structure, does not exclude a Popescu--Rohrlich box. The two routes are thus the operator-algebraic and information-theoretic faces of one ceiling, and they reduce the selection of 22 to a single substratum fact, with the residue an instance of the deepest open question of the programme rather than a problem specific to nonlocal correlations.
This article develops an expanded critical–propositional analysis of Gregor Weihs, Thomas Jennewein, Christoph Simon, Harald Weinfurter, and Anton Zeilinger’s 1998 experiment, “Violation of Bell’s Inequality under Strict Einstein Locality Conditions,” in systematic dialogue with the Theory of Objectivity (TO) formulated by Vidamor Cabannas and Denivaldo Silva. Weihs et al. implemented a Bell-type experiment with polarization-entangled photons, spatially separated measurement stations, rapidly and independently selected analyzer settings, and independent time-tagged registration. The experiment was designed to impose strict spacelike separation between the relevant measurement processes and reported a CHSH value of approximately S = 2.73 ± 0.02, substantially exceeding the Bell-local bound S ≤ 2. The measurement stations were separated by approximately 400 m, whereas the relevant interval between local setting selection and detection was much shorter than the approximately 1.3 µs light-travel time between the stations (Weihs et al. 1998). The purpose of the present study is not to reinterpret the violation of Bell’s inequality as a direct experimental proof of the Theory of Objectivity. Such an inference would exceed what the experiment establishes. Instead, the article distinguishes three epistemic levels: empirical result, theoretical interpretation, and modal-ontological proposition. This distinction is fundamental because the TO presents its Absolute Truths as modal necessities, whereas Bell experiments are contingent empirical investi- gations conducted under explicit mathematical, physical, and statistical assumptions. Within this disciplined framework, the strongest dialogue between Weihs et al. and the TO is found in the Fifth Absolute Truth, according to which the logical existence of an element requires observation or frequency relation with at least two other elements, while “observation” does not mean human consciousness. The Bell experiment is intrinsically relational: the relevant quantity is constructed from joint statistics obtained at physically independent stations, and no human observer is required to produce local physical registration. A second important dialogue arises with the Seventh Absolute Truth and the TO concept of the transcendent element as knowledge or information produced in atomic relations and treated within the theory as equivalent to atomic radiation. The experiment presents a rigorous chain connecting radiation, polarization, interaction, registration, correlation, and recoverable information. Nevertheless, quantum mechanics supports the proposition that radiation can instantiate information-bearing degrees of freedom; this does not by itself demonstrate the stronger ontological identity between radiation and information proposed by the TO. The Fourth and Sixth Absolute Truths also enter the dialogue through physical boundaries, interfaces, experimental differentiation, composition, and antecedent prepa- ration. By contrast, the experiment does not directly test the First Absolute Truth concerning logical-mathematical Nothingness, the Third Absolute Truth concerning Infinity as a non-element, or the complete physical content of the Second Absolute Truth concerning a unique individuating field belonging to every existing element. The article further examines possible relations with the phenomenic elements of the TO, the EIE/EIR Inductive Effects, the Cosmogenic Theorem, the proposed cos- mological Eras, the Law of Logical Minimum, and the Alpha–Omega Test. Throughout the analysis, experimentally grounded relations are distinguished from analogical or heuristic extrapolations. A central conclusion is that Bell nonlocality should not be equated with con- trollable superluminal information transmission, nor should it be treated as automatic demonstration of any unique hidden ontology. Its importance for the TO lies in the empirical inadequacy of the relevant Bell-local class of models and in the consequent importance of relational structure. The paper therefore proposes a future operational program: the TO should derive a quantitative function, correction, threshold, probabil- ity distribution, or observable capable of differing from standard quantum mechanics. Only such a discriminating prediction can transform philosophical compatibility into an independent empirical test. Keywords: Theory of Objectivity; Bell inequality; Bell nonlocality; Einstein locality; quantum entanglement; CHSH inequality; modal ontology; relational ob- servation; information; radiation; Absolute Truths; EIE; EIR; Cosmogenic Theorem; quantum foundations; empirical testability.
This article presents a systematic account of the EPR argument and Bell tests, focusing on rigorously established mathematical results and experimental evidence published up to the cut-off date of October 28, 2026. The assumptions of local factorization and measurement-setting independence are stated explicitly. The CHSH bound of 2 is proved, and the quantum bound of 2√2 is derived using operator methods and semidefinite certificates. The joint outcome probabilities for the singlet state are derived, and the no-signalling theorem is proved for completely positive, trace-preserving local operations. Separability is shown to imply Bell locality, and entanglement is carefully distinguished from the violation of a particular Bell inequality. For noisy two-qubit states, spin measurements are explicitly distinguished from binary strategies that allow constant outcomes. The account also includes explicit constructions of local distributions, Fine’s theorem, and self-testing bounds. Experimental evidence is examined together with the statistical assumptions underlying its analysis; historical interpretations and unconfirmed proposals are clearly identified as such. The 1930 photon box is also analysed, with a distinction drawn between a semiclassical reconstruction of the apparatus and an exact relation between energy and time evolution. These results do not, in themselves, constitute particle detections, enable superluminal communication, or single out a unique ontology.
Quantum non-locality has become a popular term. Yet, its precise meaning, and even its mere existence, is the subject of controversies. The main cause of the controversies is the never ending discussion on the appropriate definitions of Locality and Realism in the derivation of Bell's inequalities. On the other hand, Louis Sica derived Bell's inequalities from the hypothesis that time series of outcomes observed in one station do not change if the setting in the other (distant) station is changed. The derivation is based on arithmetical properties of time series only; it does not involve the definitions of Locality, Realism and probabilities, and is valid for series of any length. An important consequence is that violation of Bell's inequalities implies the series recorded (at the same time) in one station to be different if the setting in the other station is changed. This result gives precise meaning to the idea of quantum non-locality, and also makes evident why using it for faster than light signaling is impossible (because the difference is between factual and counter-factual series). Finally, it is demonstrated that series of outcomes, even if they violate Bell's inequalities, can be always embedded in a set of factual and counter-factual data that does hold to Bell's inequalities. Loosely speaking, the factual world may be quantum or not, but the union of factual and counter-factual worlds is always classical.