Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Angewandte Chemie International Edition

From Electrons and Nuclei to Assemblies of Correlated Atoms

Neil William Ashcroft

Published Jun 27, 2017• 3 citations
Publisher

Abstract

What constitutes an atom? The answer may depend on whether you ask a physicist or a chemist. But the complementary views lead to productive overlap in atomic theory. Limiting cases, under high pressures and temperatures, have had a profound impact in a wider context.
DOI
10.1002/anie.201702671

Related papers

Quantum physics and the atom, quantum ideas, nuclei, electrons and atomic structure

Institute of Physics eBooks•Nov 26, 2004•0 citations

Molecular Quantum Electrodynamics

David Parker Craig, T. Thirunamachandran

This systematic introduction to quantum electrodynamics focuses on the interaction of radiation with outer electrons and nuclei of atoms and molecules, answering the long-standing need of chemists and physicists for a comprehensive text on this highly specialized subject.Geared toward postgraduate students in the chemical sciences who require an understanding of quantum electrodynamics as applied to the interpretation of optical experiments on atoms and molecules, the text offers a detailed explanation of the quantum theory of electromagnetic radiation and its interaction with matter. It feat

•Dec 1, 1984•697 citations

Can we rotate an atom?

J. P. Woerdman, M. Kristensen, Martijn A. van Eijkelenborg +1 more

When we rotate matter the nuclei follow the macroscopic motion. One may ask whether the atomic electrons also follow the rotation microscopically. If they do, a mechanical Faraday effect arises. We discuss the connection between the mechanical Faraday effect and the usual (i.e., magnetic) Faraday effect. As material medium we consider resonant atoms immersed in a high‐density buffer gas. The electronic wave functions of the resonant atoms are predicted to be rotationally coupled to the buffer gas as soon as nonimpact broadening becomes appreciable at line center. Preliminary experimental results for the case Rb+Xe indicate that this occurs for Xe pressures of a few atmospheres.

AIP conference proceedings•Jan 1, 1993•0 citations

What Is an Atom?

William Marias Malisoff

For a number of years I have been demonstrating at my seminars that the atom is no longer atomic, that mechanics is no longer mechanistic, and that similar paradoxes of advancing science can be formulated throughout its extent. The point has been reached, however, that a call for a revision of terms or some such reform should be issued. At one time, indeed, I gave a list of terms to be dropped altogether. They refused to be dropped. I ask now: Will they permit themselves to be modified or to be reallocated?

Philosophy of Science•Jul 1, 1939•3 citations

A new chapter in the problem of the reduction of chemistry to physics: the Quantum Theory of Atoms in Molecules

Jesús Alberto Jaimes Arriaga, Sebastián Fortín, Olímpia Lombardi

Foundations of Chemistry•Jan 1, 2019•14 citations

Interpretations of Quantum Theory: A Map of Madness

Adán Cabello

Motivated by some recent news, a journalist asks a group of physicists: "What's the meaning of the violation of Bell's inequality?" One physicist answers: "It means that non-locality is an established fact". Another says: "There is no non-locality; the message is that measurement outcomes are irreducibly random". A third one says: "It cannot be answered simply on purely physical grounds, the answer requires an act of metaphysical judgement". Puzzled by the answers, the journalist keeps asking questions about quantum theory: "What is teleported in quantum teleportation?" "How does a quantum computer really work?" Shockingly, for each of these questions, the journalist obtains a variety of answers which, in many cases, are mutually exclusive. At the end of the day, the journalist asks: "How do you plan to make progress if, after 90 years of quantum theory, you still don't know what it means? How can you possibly identify the physical principles of quantum theory or expand quantum theory into gravity if you don't agree on what quantum theory is about?" Here we argue that it is becoming urgent to solve this too long lasting problem. For that, we point out that the interpretations of quantum theory are, essentially, of two types and that these two types are so radically different that there must be experiments that, when analyzed outside the framework of quantum theory, lead to different empirically testable predictions. Arguably, even if these experiments do not end the discussion, they will add new elements to the list of strange properties that some interpretations must have, therefore they will indirectly support those interpretations that do not need to have all these strange properties.

arXiv:1509.04711•Cambridge University Press eBooks•Apr 24, 2017•92 citations
This systematic introduction to quantum electrodynamics focuses on the interaction of radiation with outer electrons and nuclei of atoms and molecules, answering the long-standing need of chemists and physicists for a comprehensive text on this highly specialized subject.Geared toward postgraduate students in the chemical sciences who require an understanding of quantum electrodynamics as applied to the interpretation of optical experiments on atoms and molecules, the text offers a detailed explanation of the quantum theory of electromagnetic radiation and its interaction with matter. It feat
When we rotate matter the nuclei follow the macroscopic motion. One may ask whether the atomic electrons also follow the rotation microscopically. If they do, a mechanical Faraday effect arises. We discuss the connection between the mechanical Faraday effect and the usual (i.e., magnetic) Faraday effect. As material medium we consider resonant atoms immersed in a high‐density buffer gas. The electronic wave functions of the resonant atoms are predicted to be rotationally coupled to the buffer gas as soon as nonimpact broadening becomes appreciable at line center. Preliminary experimental results for the case Rb+Xe indicate that this occurs for Xe pressures of a few atmospheres.
For a number of years I have been demonstrating at my seminars that the atom is no longer atomic, that mechanics is no longer mechanistic, and that similar paradoxes of advancing science can be formulated throughout its extent. The point has been reached, however, that a call for a revision of terms or some such reform should be issued. At one time, indeed, I gave a list of terms to be dropped altogether. They refused to be dropped. I ask now: Will they permit themselves to be modified or to be reallocated?
Motivated by some recent news, a journalist asks a group of physicists: "What's the meaning of the violation of Bell's inequality?" One physicist answers: "It means that non-locality is an established fact". Another says: "There is no non-locality; the message is that measurement outcomes are irreducibly random". A third one says: "It cannot be answered simply on purely physical grounds, the answer requires an act of metaphysical judgement". Puzzled by the answers, the journalist keeps asking questions about quantum theory: "What is teleported in quantum teleportation?" "How does a quantum computer really work?" Shockingly, for each of these questions, the journalist obtains a variety of answers which, in many cases, are mutually exclusive. At the end of the day, the journalist asks: "How do you plan to make progress if, after 90 years of quantum theory, you still don't know what it means? How can you possibly identify the physical principles of quantum theory or expand quantum theory into gravity if you don't agree on what quantum theory is about?" Here we argue that it is becoming urgent to solve this too long lasting problem. For that, we point out that the interpretations of quantum theory are, essentially, of two types and that these two types are so radically different that there must be experiments that, when analyzed outside the framework of quantum theory, lead to different empirically testable predictions. Arguably, even if these experiments do not end the discussion, they will add new elements to the list of strange properties that some interpretations must have, therefore they will indirectly support those interpretations that do not need to have all these strange properties.