Philosophy of Quantum Mechanics: Time as Emergent Property Deriving from Quantum Correlations

2018 ◽  
Vol 16 (9) ◽  
Author(s):  
Michele Caponigro
Keyword(s):  
Quantum Mechanics ◽  
Quantum Correlations ◽  
Emergent Property

scholarly journals Quantum Mechanics and Global Determinism

Quanta ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 40 ◽  
Author(s):  
Emily Christine Adlam
Keyword(s):  
Quantum Mechanics ◽  
Quantum Correlations ◽  
Deterministic Theory ◽  
No Signaling ◽  
Open Question ◽  
Global Determinism

It is proposed that certain features of quantum mechanics may be perspectival effects, which arise because experiments performed on locally accessible variables can only uncover a certain subset of the correlations exhibited by an underlying deterministic theory. This hypothesis is used to derive the no-signaling principle, thus resolving an open question regarding the apparently fine-tuned nature of quantum correlations. Some potential objections to this approach are then discussed and answered.Quanta 2018; 7: 40–53.

scholarly journals Reality, Indeterminacy, Probability, and Information in Quantum Theory

Entropy ◽  
2020 ◽  
Vol 22 (7) ◽  
pp. 747
Author(s):  
Arkady Plotnitsky
Keyword(s):  
Information Theory ◽  
Quantum Mechanics ◽  
Quantum Theory ◽  
Quantum Information ◽  
Quantum Correlations ◽  
Quantum Information Theory ◽  
Quantum Phenomena

Following the view of several leading quantum-information theorists, this paper argues that quantum phenomena, including those exhibiting quantum correlations (one of their most enigmatic features), and quantum mechanics may be best understood in quantum-informational terms. It also argues that this understanding is implicit already in the work of some among the founding figures of quantum mechanics, in particular W. Heisenberg and N. Bohr, half a century before quantum information theory emerged and confirmed, and gave a deeper meaning to, to their insights. These insights, I further argue, still help this understanding, which is the main reason for considering them here. My argument is grounded in a particular interpretation of quantum phenomena and quantum mechanics, in part arising from these insights as well. This interpretation is based on the concept of reality without realism, RWR (which places the reality considered beyond representation or even conception), introduced by this author previously, in turn, following Heisenberg and Bohr, and in response to quantum information theory.

scholarly journals Proposal to Test a Transient Deviation from Quantum Mechanics’ Predictions for Bell’s Experiment

Entropy ◽  
2021 ◽  
Vol 23 (12) ◽  
pp. 1589
Author(s):  
Alejandro Andrés Hnilo ◽  
Monica Beatriz Agüero ◽  
Marcelo Gregorio Kovalsky
Keyword(s):  
Quantum Mechanics ◽  
Hidden Variables ◽  
Quantum Correlations ◽  
Entangled State ◽  
Particle Detection ◽  
Specific Test ◽  
Nonlinear Operators ◽  
Model Following ◽  
Proposed Model ◽  
Faster Than Light

Quantum mechanics predicts correlations between measurements performed in distant regions of a spatially spread entangled state to be higher than allowed by intuitive concepts of Locality and Realism. These high correlations forbid the use of nonlinear operators of evolution (which would be desirable for several reasons), for they may allow faster-than-light signaling. As a way out of this situation, it has been hypothesized that the high quantum correlations develop only after a time longer than L/c has elapsed (where L is the spread of the entangled state and c is the velocity of light). In shorter times, correlations compatible with Locality and Realism would be observed instead. A simple hidden variables model following this hypothesis is described. It is based on a modified Wheeler–Feynman theory of radiation. This hypothesis has not been disproved by any of the experiments performed to date. A test achievable with accessible means is proposed and described. It involves a pulsed source of entangled states and stroboscopic record of particle detection during the pulses. Data recorded in similar but incomplete optical experiments are analyzed, and found consistent with the proposed model. However, it is not claimed, in any sense, that the hypothesis has been validated. On the contrary, it is stressed that a complete, specific test is absolutely needed.

scholarly journals Causation does not explain contextuality

Quantum ◽  
2018 ◽  
Vol 2 ◽  
pp. 63 ◽  
Author(s):  
Sally Shrapnel ◽  
Fabio Costa
Keyword(s):  
Quantum Mechanics ◽  
Causal Structure ◽  
Quantum Correlations ◽  
Global Constraints ◽  
Local Constraints ◽  
The Past ◽  
Interpretations Of Quantum Mechanics ◽  
The World ◽  
Non Local ◽  
Initial States

Realist interpretations of quantum mechanics presuppose the existence of elements of reality that are independent of the actions used to reveal them. Such a view is challenged by several no-go theorems that show quantum correlations cannot be explained by non-contextual ontological models, where physical properties are assumed to exist prior to and independently of the act of measurement. However, all such contextuality proofs assume a traditional notion of causal structure, where causal influence flows from past to future according to ordinary dynamical laws. This leaves open the question of whether the apparent contextuality of quantum mechanics is simply the signature of some exotic causal structure, where the future might affect the past or distant systems might get correlated due to non-local constraints. Here we show that quantum predictions require a deeper form of contextuality: even allowing for arbitrary causal structure, no model can explain quantum correlations from non-contextual ontological properties of the world, be they initial states, dynamical laws, or global constraints.

scholarly journals Relativistic independence bounds nonlocality

2019 ◽  
Vol 5 (4) ◽  
pp. eaav8370 ◽  
Author(s):  
Avishy Carmi ◽  
Eliahu Cohen
Keyword(s):  
Quantum Mechanics ◽  
Quantum Correlations ◽  
Physical Principle ◽  
Quantum Nonlocality ◽  
Measuring Instruments ◽  
Uncertainty Relations ◽  
The Past ◽  
Nonlocal Correlations

If nature allowed nonlocal correlations other than those predicted by quantum mechanics, would that contradict some physical principle? Various approaches have been put forward in the past two decades in an attempt to single out quantum nonlocality. However, none of them can explain the set of quantum correlations arising in the simplest scenarios. Here, it is shown that generalized uncertainty relations, as well as a specific notion of locality, give rise to both familiar and new characterizations of quantum correlations. In particular, we identify a condition, relativistic independence, which states that uncertainty relations are local in the sense that they cannot be influenced by other experimenters’ choices of measuring instruments. We prove that theories with nonlocal correlations stronger than the quantum ones do not satisfy this notion of locality, and therefore, they either violate the underlying generalized uncertainty relations or allow experimenters to nonlocally tamper with the uncertainty relations of their peers.

scholarly journals The problem of quantum correlations and the totalitarian principle

2019 ◽  
Vol 377 (2157) ◽  
pp. 20190136 ◽  
Author(s):  
Adán Cabello
Keyword(s):  
Quantum Mechanics ◽  
Quantum Correlations ◽  
Short Version ◽  
Theme Issue ◽  
Independent Realization

The totalitarian principle establishes that ‘anything not forbidden is compulsory’. The problem of quantum correlations is explaining what selects the set of quantum correlations for a Bell and Kochen–Specker (KS) contextuality scenario. Here, we show that two assumptions and a version of the totalitarian principle lead to the quantum correlations. The assumptions are that there is a non-empty set of correlations for any KS contextuality scenario and a statistically independent realization of any two KS experiments. The version of the totalitarian principle says that any correlation not forbidden by these assumptions can be produced. This paper contains a short version of the proof (presented elsewhere) and explores some implications of the result. This article is part of the theme issue ‘Contextuality and probability in quantum mechanics and beyond’.

Quantum Mechanics as an Emergent Property of Ergodic Systems Embedded in the Zero-point Radiation Field

2009 ◽  
Vol 39 (11) ◽  
pp. 1240-1272 ◽  
Author(s):  
L. de la Peña ◽  
A. Valdés-Hernández ◽  
A. M. Cetto
Keyword(s):  
Quantum Mechanics ◽  
Radiation Field ◽  
Zero Point ◽  
Emergent Property

scholarly journals Quantum violation of the pigeonhole principle and the nature of quantum correlations

2016 ◽  
Vol 113 (3) ◽  
pp. 532-535 ◽  
Author(s):  
Yakir Aharonov ◽  
Fabrizio Colombo ◽  
Sandu Popescu ◽  
Irene Sabadini ◽  
Daniele C. Struppa ◽  
...  
Keyword(s):  
Quantum Mechanics ◽  
Quantum Effects ◽  
Quantum Correlations ◽  
Fundamental Principle ◽  
Pigeonhole Principle ◽  
Quantum Particles ◽  
Interesting Structure

The pigeonhole principle: “If you put three pigeons in two pigeonholes, at least two of the pigeons end up in the same hole,” is an obvious yet fundamental principle of nature as it captures the very essence of counting. Here however we show that in quantum mechanics this is not true! We find instances when three quantum particles are put in two boxes, yet no two particles are in the same box. Furthermore, we show that the above “quantum pigeonhole principle” is only one of a host of related quantum effects, and points to a very interesting structure of quantum mechanics that was hitherto unnoticed. Our results shed new light on the very notions of separability and correlations in quantum mechanics and on the nature of interactions. It also presents a new role for entanglement, complementary to the usual one. Finally, interferometric experiments that illustrate our effects are proposed.

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