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Springer eBooks

The Experimental Resolution of the Bohr–Einstein Debate: How Entangled Particles Made Their Way from Theory into Practice

Lars Jaeger

Published Jan 1, 2018• 0 citations
Publisher
DOI
10.1007/978-3-319-98824-5_24

Related papers

Explaining duality, the “only mystery” of quantum mechanics, without complementarity or “which way” (welcher-weg)

pSarma N Gullapallip

Early on, Albert Einstein and Niels Bohr heatedly debated wave-particle duality. To explain duality Bohr postulated his principle of complementarity, which is now widely accepted, but has mystifying metaphysical implications. Albert Einstein disagreed. Richard Feynman called it the “only mystery�? in quantum mechanics. Ingenious experiments including those using entanglement have confirmed Bohr’s complementarity. In this paper a new Duality Theorem is presented with proof which explains duality with particle always remaining particle and wave always remaining wave throughout, without using wave-particle complementarity or “which way�? (welcher-weg) observation. We explain results of reported experiments by showing the equivalence: Coherence and alignment ≡ Interference ≡ No “which way�? observation; No coherence or alignment ≡ No interference ≡ “which way�? observation That is, complementarity is redundant; conventional criteria of alignment and coherence alone suffice for interference. Our explanation does not require that photon somehow “know�? about the test setup or “which way�? observation and change its behavior from particle to wave and vice versa. No new assumptions are made, only new reasoning. In the context of entanglement we also help explain non-local action at a distance, and rephrase Albert Einstein’s unanswered question “Is quantum mechanics complete?�? at a more fundamental level.

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Revisiting wave–particle duality in Bohr–Einstein debate

Yusef Maleki, Muhammad Suhail Zubairy

The notion of wave–particle duality remains one of the most debated subjects in the history of quantum physics. The most famous debate on the subject occurred between Bohr and Einstein. In this work, we revisit the wave–particle duality in the Bohr–Einstein debate from the viewpoint of the recently established duality-entanglement relation. We show that the duality-entanglement relation can provide a valuable framework for quantitative analysis of the Einstein's gedanken double-slit experiment and clarify some of its fundamental aspects.

AVS Quantum Science•Jul 5, 2023•7 citations

The Quantum Debate: From Einstein to Bell and Beyond

Bastos Filho Jenner Barretto

IOS Press eBooks•Jan 1, 2005•0 citations

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14 From Einstein, Bohr, Schrödinger to Bell and Feynman: a New Quantum Revolution?

Alain Aspect

In 1935, the Einstein-Podolsky-Rosen paper introduced a new kind of two-particles quantum state, which was named 'entangled' by Schrödinger.Showing that measurements on both particles were strongly correlated even if the particles were widely separated, Einstein argued that the formalism did not describe all the elements of the physical reality, and he concluded that Quantum Mechanics was not complete.Bohr immediately opposed this reasoning, claiming that Quantum Mechanics was consistent as it was, and that it did not need to be completed, and even that it should not be completed.The discussion between Einstein and Bohr lasted until the death of the two giants, leaving the question unsettled.It was considered by most of the physicists only as an epistemological debate, holding on questions of interpretation, but without any practical consequence on how to use Quantum Mechanics.The situation changed in 1964, when Bell discovered that taking Einstein's point of view led to consequences in contradiction with the predictions of Quantum Mechanics in some (rare) situations.The debate was then displaced from the realm of epistemology to the one of physics, since it could be settled by experiments.After a series of experiments closer and closer to the ideal Gedankenexperiment, more and more physicists realized that entanglement was definitely weirder than any previous concept, and that it might be used for new ways of processing and transmitting information.This prompted the development of a new field, quantum information, which brings us into a new quantum age, and may change our society as dramatically as the first quantum revolution, which gave us integrated circuits and lasers, responsible for the development of the information and communication society.

EDP Sciences eBooks•Nov 4, 2020•0 citations
Early on, Albert Einstein and Niels Bohr heatedly debated wave-particle duality. To explain duality Bohr postulated his principle of complementarity, which is now widely accepted, but has mystifying metaphysical implications. Albert Einstein disagreed. Richard Feynman called it the “only mystery�? in quantum mechanics. Ingenious experiments including those using entanglement have confirmed Bohr’s complementarity. In this paper a new Duality Theorem is presented with proof which explains duality with particle always remaining particle and wave always remaining wave throughout, without using wave-particle complementarity or “which way�? (welcher-weg) observation. We explain results of reported experiments by showing the equivalence: Coherence and alignment ≡ Interference ≡ No “which way�? observation; No coherence or alignment ≡ No interference ≡ “which way�? observation That is, complementarity is redundant; conventional criteria of alignment and coherence alone suffice for interference. Our explanation does not require that photon somehow “know�? about the test setup or “which way�? observation and change its behavior from particle to wave and vice versa. No new assumptions are made, only new reasoning. In the context of entanglement we also help explain non-local action at a distance, and rephrase Albert Einstein’s unanswered question “Is quantum mechanics complete?�? at a more fundamental level.
The notion of wave–particle duality remains one of the most debated subjects in the history of quantum physics. The most famous debate on the subject occurred between Bohr and Einstein. In this work, we revisit the wave–particle duality in the Bohr–Einstein debate from the viewpoint of the recently established duality-entanglement relation. We show that the duality-entanglement relation can provide a valuable framework for quantitative analysis of the Einstein's gedanken double-slit experiment and clarify some of its fundamental aspects.
In 1935, the Einstein-Podolsky-Rosen paper introduced a new kind of two-particles quantum state, which was named 'entangled' by Schrödinger.Showing that measurements on both particles were strongly correlated even if the particles were widely separated, Einstein argued that the formalism did not describe all the elements of the physical reality, and he concluded that Quantum Mechanics was not complete.Bohr immediately opposed this reasoning, claiming that Quantum Mechanics was consistent as it was, and that it did not need to be completed, and even that it should not be completed.The discussion between Einstein and Bohr lasted until the death of the two giants, leaving the question unsettled.It was considered by most of the physicists only as an epistemological debate, holding on questions of interpretation, but without any practical consequence on how to use Quantum Mechanics.The situation changed in 1964, when Bell discovered that taking Einstein's point of view led to consequences in contradiction with the predictions of Quantum Mechanics in some (rare) situations.The debate was then displaced from the realm of epistemology to the one of physics, since it could be settled by experiments.After a series of experiments closer and closer to the ideal Gedankenexperiment, more and more physicists realized that entanglement was definitely weirder than any previous concept, and that it might be used for new ways of processing and transmitting information.This prompted the development of a new field, quantum information, which brings us into a new quantum age, and may change our society as dramatically as the first quantum revolution, which gave us integrated circuits and lasers, responsible for the development of the information and communication society.