Results 51 to 60 of about 451,144 (332)

From Classical to Quantum Mechanics: "How to translate physical ideas into mathematical language"

, 2001
In this paper, we investigate the connection between Classical and Quantum Mechanics by dividing Quantum Theory in two parts: - General Quantum Axiomatics (a system is described by a state in a Hilbert space, observables are self-adjoint operators and so
Bayen F., Bayen F., Bergeron H., Flato M., George C., Gleason A., H. Bergeron, Koopman B. O.   +7 more
core   +1 more source

Fabrication of Multifunctional FeSi Gyroid Lattice Composites via Additive Manufacturing and Polymer Infiltration

Advanced Engineering Materials, EarlyView.
A two‐step approach combining laser powder bed fusion of FeSi electrical steel with Bakelite infiltration enables the fabrication of multifunctional gyroid lattice composites. The resulting structures exhibit high strength, magnetic anisotropy, and complete polymer infiltration, demonstrating a simple and scalable route toward lightweight, mechanically
Angelo F. Andreoli, Mayumi A. Nakahashi, Vitor E. Pinotti, Felipe O. C. Bernardo, Lidiane C. Costa, Francisco G. Coury, Ronei C. de Oliveira, Adilson J. A. de Oliveira, Carlos E. H. Ventura, Piter Gargarella   +9 more
wiley   +1 more source

A Process Model of Quantum Mechanics

, 2014
A process model of quantum mechanics utilizes a combinatorial game to generate a discrete and finite causal space upon which can be defined a self-consistent quantum mechanics.
Sulis, William
core   +1 more source

Recurrence in Quantum Mechanics [PDF]

International Journal of Theoretical Physics, 2002
We first compare the mathematical structure of quantum and classical mechanics when both are formulated in a C*-algebraic framework. By using finite von Neumann algebras, a quantum mechanical analogue of Liouville's theorem is then proposed. We proceed to study Poincare recurrence in C*-algebras by mimicking the measure theoretic setting.
openaire   +2 more sources

SUPERCONFORMAL QUANTUM MECHANICS [PDF]

Nuclear Physics B, 1984
N = 1 and N = 2 superconformal quantum mechanics are formulated and solved. Spontaneous symmetry breaking occurs. A de Sitter subalgebra is used to define new supersymmetric evolution operators. The modified system has a discrete spectrum exhibiting new supersymmetries. The N = 2 extended de Sitter superalgebra is spontaneously broken to N = 1.
S. Fubini, E. Rabinovici
openaire   +1 more source

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

Advanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu, Jochen Vanderspikken, Paola Mantegazza, Stefania Moro, Mouna Hamid, Sigurd Mertens, Niko Van den Brande, Laurence Lutsen, Vincent Lemaur, David Beljonne, Giovanni Costantini, Koen Vandewal, Bruno Van Mele, Wouter Maes, Bart Goderis   +14 more
wiley   +1 more source

Canonical transformations in quantum mechanics

, 2012
This paper presents the general theory of canonical transformations of coordinates in quantum mechanics. First, the theory is developed in the formalism of phase space quantum mechanics.
Anderson, Anderson, Bayen, Bayen, Bordemann, Born, Błaszak, Błaszak, Curtright, de Gosson, de Gosson, de Gosson, de Gosson, Dereli, Dias, Dias, Dirac, Dirac, Dirl, Dito, García-Calderón, Gracia-Bondía, Gutt, Hansen, Hietarinta, Jordan, Jordan, Kammerer, Kim, Lee, London, London, Maciej Błaszak, Maillard, Mello, Moshinsky, Moshinsky, Moyal, Ohnuki, Waldmann, Weinstein, Weyl, Ziemowit Domański   +42 more
core   +1 more source

Relational quantum mechanics is still incompatible with quantum mechanics

European Journal for Philosophy of Science
We showed in a recent article (Lawrence et. al., 2023, Quantum 7, 1015), that relative facts (outcomes), a central concept in Relational Quantum Mechanics, are inconsistent with Quantum Mechanics. We proved this by constructing a Wigner-Friend type sequential measurement scenario on a Greenberger-Horne-Zeilinger (GHZ) state of three qubits, and making ...
Jay Lawrence, Marcin Markiewicz, Marek Żukowski   +2 more
openaire   +2 more sources

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

On the categoricity of quantum mechanics [PDF]

European Journal for Philosophy of Science, 2020
AbstractThe paper offers an argument against an intuitive reading of the Stone-von Neumann theorem as a categoricity result, thereby pointing out that, against what is usually taken to be the case, this theorem does not entail any model-theoretical difference between the theories that validate it and those that don’t.
openaire   +4 more sources