Results 1 to 10 of about 213 (150)

Non-Commutative Worlds and Classical Constraints [PDF]

open access: yesEntropy, 2018
This paper reviews results about discrete physics and non-commutative worlds and explores further the structure and consequences of constraints linking classical calculus and discrete calculus formulated via commutators.
Louis H. Kauffman
doaj   +2 more sources

Time-dependent Hamiltonian Simulation of Highly Oscillatory Dynamics and Superconvergence for Schrödinger Equation [PDF]

open access: yesQuantum, 2022
We propose a simple quantum algorithm for simulating highly oscillatory quantum dynamics, which does not require complicated quantum control logic for handling time-ordering operators.
Dong An, Di Fang, Lin Lin
doaj   +1 more source

Spectral multiplier theorems for abstract harmonic oscillators on UMD lattices

open access: yesComptes Rendus. Mathématique, 2023
We consider operators acting on a UMD Banach lattice $X$ that have the same algebraic structure as the position and momentum operators associated with the harmonic oscillator $-\frac{1}{2}\Delta + \frac{1}{2}|x|^{2} $ acting on $L^{2}(\mathbb{R}^{d ...
van Neerven, Jan   +2 more
doaj   +1 more source

Generating q-Commutator Identities and the q-BCH Formula

open access: yesAdvances in Mathematical Physics, 2016
Motivated by the physical applications of q-calculus and of q-deformations, the aim of this paper is twofold. Firstly, we prove the q-deformed analogue of the celebrated theorem by Baker, Campbell, and Hausdorff for the product of two exponentials.
Andrea Bonfiglioli, Jacob Katriel
doaj   +1 more source

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