The so-called fourth indeterminacy relation

1970 ◽  
Vol 48 (11) ◽  
pp. 1410-1411 ◽  
Author(s):  
Mario Bunge
Keyword(s):  
Quantum Theory ◽  
Thought Experiment ◽  
Time And Energy

The indeterminacy relation between time and energy, suggested by Bohr on the basis of a thought experiment, is shown not to belong to the quantum theory. It is argued that the incorporation of that formula into a theory would require a basic departure from present day physics, consisting in representing time by a suitable operator. It is suggested that the formula be dropped altogether.

scholarly journals POPPER'S THOUGHT EXPERIMENT REINVESTIGATED

2012 ◽  
Vol 10 (03) ◽  
pp. 1250033 ◽  
Author(s):  
CHRIS D. RICHARDSON ◽  
JONATHAN P. DOWLING
Keyword(s):  
Quantum Mechanics ◽  
Quantum Theory ◽  
Thought Experiment

Popper's original thought experiment probed some fundamental and subtle rules of quantum mechanics. He claimed that quantum mechanics was incomplete and devised an experiment to prove it. Two experiments have directly and indirectly tested Popper's hypothesis, and they provide some evidence that Popper's prediction may have been correct. The equations governing these two experiments and Popper's thought experiment will be derived from basic quantum principles. The experimental constants will be inputted and it will show that the two experiments reinforce each other and agree completely with quantum theory.

scholarly journals Does Observation Create Reality?

2021 ◽  
Vol 19 (1) ◽  
pp. 11-15
Author(s):  
Daegene Song
Keyword(s):  
Energy Transfer ◽  
Quantum Theory ◽  
Quantum System ◽  
Quantum Entanglement ◽  
Physical System ◽  
Information Transfer ◽  
Thought Experiment ◽  
Particle Creation ◽  
Physical World ◽  
Quantum Vacuum

It has been suggested that the locality of information transfer in quantum entanglement indicates that reality is subjective, meaning that there is an innate inseparability between the physical system being observed and the conscious mind of the observer. This paper attempts to outline the relation between macroscopic and microscopic worlds in the measurement process in regards to whether observation creates reality. Indeed, the Maxwell's demon thought experiment suggests a correlation between a microscopic (quantum) system and a macroscopic (classical) apparatus, which leads to an energy transfer from the quantum vacuum to the physical world, similar to particle creation from a vacuum. This explanation shows that observation in quantum theory conserves, rather than creates, energy.

scholarly journals Making Mistakes Saves the Single World of the Extended Wigner’s Friend Experiment

2021 ◽  
Author(s):  
Szymon Łukaszyk
Keyword(s):  
Quantum Theory ◽  
Thought Experiment ◽  
Physical Space ◽  
Entangled State ◽  
Freedom Of Choice ◽  
Identity Of Indiscernibles ◽  
Quantum Domain ◽  
Wigner’S Friend ◽  
Ugly Duckling ◽  
Single World

Abstract The Extended Wigner’s Friend thought experiment comprising a quantum system containing an agent who draws conclusions, upon observing the outcome of a measurement of a qubit prepared in two non-orthogonal versions by another agent led its authors to conclude that quantum theory cannot consistently describe the use of itself. It has also been proposed that this thought experiment is equivalent to coherent entangled state (Bell type) experiments. It is argued in this paper that the assumption of the freedom of choice of the first Wigner’s friend invalidates such equivalency. It is also argued that the assumption of locality (physical space) introduces superfluous identity of indiscernibles metric axiom, which is invalid in quantum domain and generally disproven by the Ugly duckling mathematical theorem.

scholarly journals Thought Experiment as a Logical Transformation in Transreal Logical Space

2019 ◽  
Author(s):  
Walter Gomide
Keyword(s):  
Quantum Mechanics ◽  
Quantum Theory ◽  
Thought Experiment ◽  
Thought Experiments ◽  
General Definition ◽  
Epr Paradox ◽  
Logical Space ◽  
Definition Of ◽  
American Physicist ◽  
The Ideal

In this article, from the concepts of formal causality and logical transformation, defined with transreal numbers, I intend to re-analyze the famous Einstein, Podolsky and Rosen paradox (the EPR paradox), according to which Quantum Mechanics is incomplete. In order to make such an analysis of the paradox, I present a general definition of thought experiments, in terms of the concept of logical transformation in a transreal logical space, and show that the EPR paradox, in broad outlines, bases the incomplete character of Quantum Mechanics on the fact of not having a formal causality between the ideal and concrete worlds of quantum theory - these concepts, the “ideal and concrete worlds”, by their turn, are inspired by the work of the American physicist Wolfgang Smith.

Time in the Quantum Theory and the Uncertainty Relation for Time and Energy

1961 ◽  
Vol 122 (5) ◽  
pp. 1649-1658 ◽  
Author(s):  
Y. Aharonov ◽  
D. Bohm
Keyword(s):  
Quantum Theory ◽  
Uncertainty Relation ◽  
Time And Energy

scholarly journals Parallel Lives: A Local-Realistic Interpretation of “Nonlocal” Boxes

Entropy ◽  
2019 ◽  
Vol 21 (1) ◽  
pp. 87 ◽  
Author(s):  
Gilles Brassard ◽  
Paul Raymond-Robichaud
Keyword(s):  
Quantum Theory ◽  
Prior Knowledge ◽  
First Principles ◽  
Thought Experiment ◽  
Bell Inequality ◽  
Hidden Variables ◽  
Local Realism ◽  
Imaginary World ◽  
Realistic Interpretation ◽  
Parallel Lives

We carry out a thought experiment in an imaginary world. Our world is both local and realistic, yet it violates a Bell inequality more than does quantum theory. This serves to debunk the myth that equates local realism with local hidden variables in the simplest possible manner. Along the way, we reinterpret the celebrated 1935 argument of Einstein, Podolsky and Rosen, and come to the conclusion that they were right in their questioning the completeness of the Copenhagen version of quantum theory, provided one believes in a local-realistic universe. Throughout our journey, we strive to explain our views from first principles, without expecting mathematical sophistication nor specialized prior knowledge from the reader.

scholarly journals A no-go theorem for the persistent reality of Wigner’s friend’s perception

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Philippe Allard Guérin ◽  
Veronika Baumann ◽  
Flavio Del Santo ◽  
Časlav Brukner
Keyword(s):  
Quantum Mechanics ◽  
Quantum Theory ◽  
Thought Experiment ◽  
Joint Probability ◽  
Joint Probability Distribution ◽  
Initial State ◽  
Interpretations Of Quantum Mechanics ◽  
Present Information ◽  
Wigner’S Friend ◽  
Measured System

AbstractThe notorious Wigner’s friend thought experiment (and modifications thereof) has received renewed interest especially due to new arguments that force us to question some of the fundamental assumptions of quantum theory. In this paper, we formulate a no-go theorem for the persistent reality of Wigner’s friend’s perception, which allows us to conclude that the perceptions that the friend has of her own measurement outcomes at different times cannot “share the same reality”, if seemingly natural quantum mechanical assumptions are met. More formally, this means that, in a Wigner’s friend scenario, there is no joint probability distribution for the friend’s perceived measurement outcomes at two different times, that depends linearly on the initial state of the measured system and whose marginals reproduce the predictions of unitary quantum theory. This theorem entails that one must either (1) propose a nonlinear modification of the Born rule for two-time predictions, (2) sometimes prohibit the use of present information to predict the future—thereby reducing the predictive power of quantum theory—or (3) deny that unitary quantum mechanics makes valid single-time predictions for all observers. We briefly discuss which of the theorem’s assumptions are more likely to be dropped within various popular interpretations of quantum mechanics.

Consistent Quantum Theory

2001 ◽  
Author(s):  
Robert B. Griffiths
Keyword(s):  
Quantum Theory

The Quantum Theory of Unimolecular Reactions

1984 ◽  
Author(s):  
H. O. Pritchard
Keyword(s):  
Quantum Theory ◽  
Unimolecular Reactions

Quantum theory of light in nonlinear media with dispersion and absorption

1998 ◽  
Vol 45 (2) ◽  
pp. 377-402 ◽  
Author(s):  
EDUARD SCHMIDT , JOHN JEFFERS , STEPHEN M.
Keyword(s):  
Quantum Theory ◽  
Nonlinear Media
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