Bell Inequality and Its Application to Cosmology

Kanno, Sugumi; Soda, Jiro

doi:10.3390/galaxies5040099

Cited by 10 publications

(10 citation statements)

References 23 publications

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“…Nevertheless, the question of designing Bell CMB experiments [30][31][32][33][34][35] is worth investigating for the three following reasons. First, the qualitative argument mentioned above is rather vague and it is important to study how it manifests itself in a concrete and explicit attempt to carry out a Bell experiment on the CMB.…”

Section: Introductionmentioning

confidence: 99%

Obstructions to Bell CMB experiments

Martin

Vennin

2017

Phys. Rev. D

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We present a general and systematic study of how a Bell experiment on the cosmic microwave background could be carried out. We introduce different classes of pseudo-spin operators and show that, if the system is placed in a two-mode squeezed state as inflation predicts, they all lead to a violation of the Bell inequality. However, we also discuss the obstacles that one faces in order to realize this program in practice and show that they are probably insurmountable. We suggest alternative methods that could reveal the quantum origin of cosmological structures without relying on Bell experiments.

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Section: Introductionmentioning

confidence: 99%

Obstructions to Bell CMB experiments

Martin

Vennin

2017

Phys. Rev. D

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“…So it will be interesting to investigate such possibilities in detail. Most importantly, the role of cosmological Bell's inequality violation [177][178][179][180][181][182] can also be tested to know about the long range effect in the cosmological correlation functions.…”

Section: Discussionmentioning

confidence: 99%

The Cosmological OTOC: A New Proposal for Quantifying Auto-Correlated Random Non-Chaotic Primordial Fluctuations

Choudhury

2021

Symmetry

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The underlying physical concept of computing out-of-time-ordered correlation (OTOC) is a significant new tool within the framework of quantum field theory, which now-a-days is treated as a measure of random fluctuations. In this paper, by following the canonical quantization technique, we demonstrate a computational method to quantify the two different types of cosmological auto-correlated OTO functions during the epoch when the non-equilibrium features dominates in primordial cosmology. In this formulation, two distinct dynamical time scales are involved to define the quantum mechanical operators arising from the cosmological perturbation scenario. We have provided detailed explanation regarding the necessity of this new formalism to quantify any random events generated from quantum fluctuations in primordial cosmology. We have performed an elaborative computation for the two types of two-point and four-point auto-correlated OTO functions in terms of the cosmological perturbation field variables and its canonically conjugate momenta to quantify random auto-correlations in the non-equilibrium regime. For both of the cases, we found significantly distinguishable non-chaotic, but random, behaviour in the OTO auto-correlations, which was not pointed out before in this type of study. Finally, we have also demonstrated the classical limiting behaviour of the mentioned two types of auto-correlated OTOC functions from the thermally weighted phase-space averaged Poisson brackets, which we found to exactly match the large time limiting behaviour of the auto-correlations in the super-horizon regime of the cosmological scalar mode fluctuation.

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“…Although it is known that "One of the cornerstones of inflationary cosmology is that primordial density fluctuations have a quantum mechanical origin," as Kanno & Soda wrote, however, most physicists consider that such quantum mechanical effects disappear in CMB data due to decoherence [29].…”

Section: Initial Evidence On Galactic Synchronicitymentioning

confidence: 99%

A New Hypothesis of Spin Supercurrent as Plausible Mechanism of Biological Nonlocal Interaction, Synchronicity, Quantum Communication

Umniyati¹,

Christianto²,

Smarandache³

2022

Magnetosphere and Solar Winds, Humans and Communication

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We start with citing a seminal paper by Josephson-Pallikari-Viras, that biological entities can be assumed to be able to communicate nonlocally, i.e., instantaneously. However, they also admit that the underlying mechanism of such an entangled communication is not clear yet from the wave mechanical equations. Similar arguments have been pointed out by several authors, citing that quantum equations themselves have not described anything on a possible mechanism of quantum-type interaction between two biological entities. This chapter intends to fill that research gap by suggesting a new hypothesis of spin supercurrent as a physical mechanism, based on the assumption of macroquantum condensate having nonlocal effects. Moreover, we also draw several potential applications including superconductor quasi-crystalline structure of space and plausible new method of quantum communication. Such an argument is outlined herein partly based on our personal encounter with astrophysical quantization in the past 17 years or so.

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Bell Inequality and Its Application to Cosmology

Cited by 10 publications

References 23 publications

Obstructions to Bell CMB experiments

Obstructions to Bell CMB experiments

The Cosmological OTOC: A New Proposal for Quantifying Auto-Correlated Random Non-Chaotic Primordial Fluctuations

A New Hypothesis of Spin Supercurrent as Plausible Mechanism of Biological Nonlocal Interaction, Synchronicity, Quantum Communication

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