Measurement problem ≈ Measurement problem
View article: Rethinking Superdeterminism
Rethinking Superdeterminism Open
Quantum mechanics has irked physicists ever since its conception more than\n100 years ago. While some of the misgivings, such as it being unintuitive, are\nmerely aesthetic, quantum mechanics has one serious shortcoming: it lacks a\nphysic…
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Physics without determinism: Alternative interpretations of classical physics Open
Classical physics is generally regarded as deterministic, as opposed to\nquantum mechanics that is considered the first theory to have introduced\ngenuine indeterminism into physics. We challenge this view by arguing that the\nalleged dete…
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On the Plurality of Quantum Theories: Quantum Theory as a Framework, and its Implications for the Quantum Measurement Problem Open
‘Quantum theory’ is not a single physical theory but a framework in which many different concrete theories fit. As such, a solution to the quantum measurement problem ought to provide a recipe to interpret each such concrete theory, in a m…
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MNO and Ontological Recurrence: A Non-Representational Account of Quantum Measurement and Conscious Experience Open
This paper proposes a structural bridge between the quantum measurement problem and the hard problem of consciousness. It introduces MNO (Submergence–Indimergence–Emergence) as an operator-level description of how definite outcomes arise: …
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Impossible measurements require impossible apparatus Open
A well-recognised open conceptual problem in relativistic quantum field\ntheory concerns the relation between measurement and causality. Naive\ngeneralisations of quantum measurement rules can allow for superluminal\nsignalling ('impossibl…
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The measurement problem is the measurement problem is the measurement problem Open
Recently, it has been stated that single-world interpretations of quantum theory are logically inconsistent. The claim is derived from contradicting statements of agents in a setup combining two Wigner's-friend experiments. Those statement…
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Contextual Wavefunction collapse: an integrated theory of quantum measurement Open
This paper is an in depth implementation of the proposal (Ellis 2012 Ann. Phys. NY327 1890–932) \nthat the quantum measurement issue can be resolved by carefully looking at top-down contextual \neffects within realistic measurement context…
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Generic appearance of objective results in quantum measurements Open
Measurement is of central interest in quantum mechanics as it provides the\nlink between the quantum world and the world of everyday experience. One of the\nfeatures of the latter is its robust, objective character, contrasting the\ndelica…
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The Meaning of the Wave Function: In Search of the Ontology of Quantum Mechanics Open
The meaning of the wave function has been a hot topic of debate since the early days of quantum mechanics. Recent years have witnessed a growing interest in this long-standing question. Is the wave function ontic, directly representing a s…
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Conjoint measurement undone Open
According to classical measurement theory, fundamental measurement necessarily requires the operation of concatenation qua physical addition. Quantities which do not allow this operation are measurable only indirectly by means of derived m…
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Understanding quantum mechanics: a review and synthesis in precise language Open
This review, of the understanding of quantum mechanics, is broad in scope, and aims to reflect enough of the literature to be representative of the current state of the subject. To enhance clarity, the main findings are presented in the fo…
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To ‘see’ is to break an entanglement: Quantum measurement, trauma and security Open
This article seeks to explore the quantum notion that to ‘see’ an entanglement is to break it in the context of an ‘experiment’ regarding the ongoing impact of traumatic political memory on the present. The analysis is a product of collabo…
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The wave function as a true ensemble Open
In quantum mechanics, the wave function predicts probabilities of possible measurement outcomes, but not which individual outcome is realized in each run of an experiment. This suggests that it describes an ensemble of states with differen…
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Quantum Probability from Temporal Structure Open
The Born probability measure describes the statistics of measurements in which observers self-locate themselves in some region of reality. In ψ-ontic quantum theories, reality is directly represented by the wavefunction. We show that quant…
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Measurement Science is the Science of Sciences - There is no Science without Measurement Open
Omnia in mensura et numero et pondere disposuisti is a famous Latin phrase from Solomon’s Book of Wisdom , dated to the mid first century BC, meaning that all things were ordered in measure, number, and weight. Naturally, the wisdom is app…
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1−1=Counterfactual: on the potency and significance of quantum non-events Open
We study the unique role played in quantum mechanics by non-events or ‘counterfactuals’. Our earlier analysis of ‘quantum oblivion’ has revealed some subtle stages in the measurement process, which may end up in self-cancellation. To these…
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Entanglement and the Measurement Problem Open
The entangled “measurement state” (MS), predicted by von Neumann to arise during quantum measurement, seems to display paradoxical properties such as multiple macroscopic outcomes. But analysis of interferometry experiments using entangled…
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On the Status of the Measurement Problem: Recalling the Relativistic Transactional Interpretation Open
In view of a resurgence of concern about the measurement problem, it is pointed out that the Relativistic Transactional Interpretation (RTI) remedies issues previously considered as drawbacks or refutations of the original TI. Specifically…
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Aristotle’s Measurement Dilemma Open
This paper has two main goals: first, it reconstructs Aristotle’s account of measurement in the Metaphysics and shows how it connects to modern notions of measurement. Second, it demonstrates that Aristotle’s notion of measurement works on…
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Flow of time during energy measurements and the resulting time-energy uncertainty relations Open
Uncertainty relations play a crucial role in quantum mechanics. Well-defined methods exist for the derivation of such uncertainties for pairs of observables. Other approaches also allow the formulation of time-energy uncertainty relations,…
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The pragmatic QFT measurement problem and the need for a Heisenberg-like cut in QFT Open
Despite quantum theory’s remarkable success at predicting the statistical results of experiments, many philosophers worry that it nonetheless lacks some crucial connection between theory and experiment. Such worries constitute the Quantum …
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Undecidability and Quantum Mechanics Open
Recently, great attention has been devoted to the problem of the undecidability of specific questions in quantum mechanics. In this context, it has been shown that the problem of the existence of a spectral gap, i.e., energy difference bet…
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Mathematical Bases of Optimal Measurements Theory in Nonstationary Case Open
Recently, the use of mathematical results is becoming increasingly vast field of study for solving technical problems. An example of such approach is the recently developed optimal measurement theory. In the article the mathematical reason…
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Microscopic Quantum Jump: An Interpretation of Measurement Problem Open
Nearly a century has passed, since the birth of quantum mechanics, and yet the measurement problem has not been solved. We investigate the measurement problem from two aspects. First we scrutinize the basic postulates adopted by existing t…
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Temperature as a quantum observable Open
In this article, we address the problem of how temperature of a quantum\nsystem is observed. By proposing a thought experiment, we argue that\ntemperature must be conceived as an operator and its measurement must\nnecessarily accompany a c…
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No evidence amalgamation without evidence measurement Open
In this paper we consider the problem of how to measure the strength of statistical evidence from the perspective of evidence amalgamation operations. We begin with a fundamental measurement amalgamation principle (MAP): for any measuremen…
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Measurement Without an Observer - On the Spatial Stabilization of Determinacy in the MNO Model Open
The so-called measurement problem of quantum mechanics is usually formulated as an epistemic problem: how does a determinate measurement outcome arise from a formally open state description? The prevailing answers either operate with addit…
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From quantum foundations to applications and back Open
Quantum non-locality has been an extremely fruitful subject of research, leading the scientific revolution towards quantum information science, in particular, to device-independent quantum information processing. We argue that the time is …
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Quantum formalism for events and how time can emerge from its foundations Open
Although time is one of our most intuitive physical concepts, its understanding at the fundamental level is still an open question in physics. For instance, time in quantum mechanics and general relativity are two distinct and incompatible…
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An objective collapse model without state dependent stochasticity Open
The impossibility of describing measurement in quantum mechanics while using a quantum mechanical model for the measurement machine, remains one of its central problems. Objective collapse theories attempt to resolve this problem by propos…