Results 101 to 110 of about 2,709,146 (381)

Lorentz quantum mechanics

open access: yesNew Journal of Physics, 2018
We present a theoretical framework for the dynamics of bosonic Bogoliubov quasiparticles. We call it Lorentz quantum mechanics because the dynamics is a continuous complex Lorentz transformation in complex Minkowski space.
Qi Zhang, Biao Wu
doaj   +1 more source

A ZX-Calculus with Triangles for Toffoli-Hadamard, Clifford+T, and Beyond [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2019
We consider a ZX-calculus augmented with triangle nodes which is well-suited to reason on the so-called Toffoli-Hadamard fragment of quantum mechanics. We precisely show the form of the matrices it represents, and we provide an axiomatisation which makes
Renaud Vilmart
doaj   +1 more source

Angular Momentum in Quantum Mechanics

open access: yes, 1957
This book offers a concise introduction to the angular momentum, one of the most fundamental quantities in all of quantum mechanics. Beginning with the quantization of angular momentum, spin angular momentum, and the orbital angular momentum, the author ...
A. R. Edmonds
semanticscholar   +1 more source

Biorthogonal quantum mechanics [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2013
The Hermiticity condition in quantum mechanics required for the characterisation of (a) physical observables and (b) generators of unitary motions can be relaxed into a wider class of operators whose eigenvalues are real and whose eigenstates are complete.
openaire   +5 more sources

Gravitomagnetism in quantum mechanics [PDF]

open access: yesPhysical Review D, 2010
We give a systematic treatment of the quantum mechanics of a spin zero particle in a combined electromagnetic field and a weak gravitational field, which is produced by a slow moving matter source. The analysis is based on the Klein-Gordon equation expressed in generally covariant form and coupled minimally to the electromagnetic field.
Adler, Ronald J., Chen, Pisin
openaire   +4 more sources

Hydrogel‐Based Photothermal‐Catalytic Membrane for Efficient Cogeneration of Freshwater and Hydrogen in Membrane Distillation System

open access: yesAdvanced Functional Materials, EarlyView.
This work presents an overview of the PTC‐VMD system for water‐hydrogen co‐generation. a) Illustration of the hydrogel‐based PTC membrane and the co‐generation of water and hydrogen. b) Structure of the PTC‐VMD system and the functions of each component layer.
Jiawei Sun   +7 more
wiley   +1 more source

Space-Time Approach to Non-Relativistic Quantum Mechanics

open access: yes, 2005
A probability amplitude is associated with an entire motion of a particle as a function of time, rather than simply with a position of the particle at a particular time " .
R. Feynman
semanticscholar   +1 more source

Quantum mechanics on the cylinder [PDF]

open access: yesJournal of Optics B: Quantum and Semiclassical Optics, 2003
A new approach to deformation quantization on the cylinder considered as phase space is presented. The method is based on the standard Moyal formalism for R^2 adapted to (S^1 x R) by the Weil--Brezin--Zak transformation. The results are compared with other solutions of this problem presented by Kasperkovitz and Peev (Ann. Phys. vol. 230, 21 (1994)0 and
Jaromir Tosiek   +2 more
openaire   +3 more sources

Achieving Large and Anisotropic Spin‐Mediated Thermal Transport in Textured Quantum Magnets

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
An advanced solvent‐cast cold pressing method is developed to synthesize highly textured quantum magnets. By aligning spin chains in Ca2CuO3 perpendicular to the pressing direction, a spin‐mediated thermal conductivity of 10 ± 1 W m⁻¹ K⁻¹ is achieved, the highest reported for polycrystalline quantum materials.
Shucheng Guo   +6 more
wiley   +1 more source

Quasi-relativistic description of a quantum particle moving through one-dimensional piecewise constant potentials

open access: yesResults in Physics, 2020
Using a novel quasi-relativistic wave equation, which can give precise results up to energies ~mc2, exact quantum mechanical solutions are found which corresponds to a particle with mass moving through one-dimensional piecewise constant potentials.
Luis Grave de Peralta
doaj  

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