Quantum violations of joint reality
- URL: http://arxiv.org/abs/2405.17300v2
- Date: Thu, 29 Aug 2024 15:54:25 GMT
- Title: Quantum violations of joint reality
- Authors: R. A. Caetano, R. M. Angelo,
- Abstract summary: We introduce a new criterion of joint reality.
We demonstrate that, according to this criterion, quantum mechanics generally prevents non-commuting observables from having joint elements of reality.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: With basis on (i) the physical principle of local causality and (ii) a certain notion of elements of reality, Einstein, Podolsky, and Rosen (EPR) put forward an argument showing that physical instances may exist in which two non-commuting observables can be joint elements of the physical reality. Here, we introduce a new criterion of joint reality. We demonstrate that, according to this criterion, quantum mechanics generally prevents non-commuting observables from having joint elements of reality. joint elements of reality. In addition, we introduce a measure to quantify the extent to which the criterion is violated and explore the implications of such a measure in connection with incompatibility and correlations. Our findings suggest new manners of interpreting quantum phenomena.
Related papers
- Enhanced Entanglement in the Measurement-Altered Quantum Ising Chain [46.99825956909532]
Local quantum measurements do not simply disentangle degrees of freedom, but may actually strengthen the entanglement in the system.
This paper explores how a finite density of local measurement modifies a given state's entanglement structure.
arXiv Detail & Related papers (2023-10-04T09:51:00Z) - Quantum entanglement partly demystified [0.0]
We consider a simple string model to explain and partly demystify the phenomenon of quantum entanglement.
We present several variants of the model, to address different objections that may arise.
We offer some final thoughts about the possibility that the quantum entanglement phenomenon might affect not only states, but also measurements.
arXiv Detail & Related papers (2023-06-06T16:32:01Z) - Quantum realism: axiomatization and quantification [77.34726150561087]
We build an axiomatization for quantum realism -- a notion of realism compatible with quantum theory.
We explicitly construct some classes of entropic quantifiers that are shown to satisfy almost all of the proposed axioms.
arXiv Detail & Related papers (2021-10-10T18:08:42Z) - Quantum indistinguishability through exchangeable desirable gambles [69.62715388742298]
Two particles are identical if all their intrinsic properties, such as spin and charge, are the same.
Quantum mechanics is seen as a normative and algorithmic theory guiding an agent to assess her subjective beliefs represented as (coherent) sets of gambles.
We show how sets of exchangeable observables (gambles) may be updated after a measurement and discuss the issue of defining entanglement for indistinguishable particle systems.
arXiv Detail & Related papers (2021-05-10T13:11:59Z) - Observers of quantum systems cannot agree to disagree [55.41644538483948]
We ask whether agreement between observers can serve as a physical principle that must hold for any theory of the world.
We construct examples of (postquantum) no-signaling boxes where observers can agree to disagree.
arXiv Detail & Related papers (2021-02-17T19:00:04Z) - Operational Resource Theory of Imaginarity [48.7576911714538]
We show that quantum states are easier to create and manipulate if they only have real elements.
As an application, we show that imaginarity plays a crucial role for state discrimination.
arXiv Detail & Related papers (2020-07-29T14:03:38Z) - What does the operator algebra of quantum statistics tell us about the
objective causes of observable effects? [0.0]
I explore how the operator formalism accommodates the vast number of possible states and measurements.
The necessity of non-positive elements is demonstrated by the uniquely defined mathematical description of ideal correlations.
The validity of the operator algebra indicates that a consistent explanation of the various uncertainty limited phenomena associated with physical objects is only possible if we learn to accept the fact that the elements of causality cannot be reconciled with a continuation of observable reality in the physical object.
arXiv Detail & Related papers (2020-05-08T02:15:40Z) - Entropic Uncertainty Relations and the Quantum-to-Classical transition [77.34726150561087]
We aim to shed some light on the quantum-to-classical transition as seen through the analysis of uncertainty relations.
We employ entropic uncertainty relations to show that it is only by the inclusion of imprecision in our model of macroscopic measurements that we can prepare a system with two simultaneously well-defined quantities.
arXiv Detail & Related papers (2020-03-04T14:01:17Z) - Quantum causality relations and the emergence of reality from coherent
superpositions [0.0]
I investigate the relation between the classical notion of reality and quantum superpositions.
It is shown that classical reality emerges at the macroscopic level.
It is possible to demonstrate that the classical notion of objective reality emerges only at the macroscopic level.
arXiv Detail & Related papers (2020-01-31T00:24:03Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.