Results 121 to 130 of about 504,986 (312)
Angewandte Chemie International Edition, Accepted Article.The synthesis of polarized N‐heterocyclic olefins (NHOs) based on an imidazo[1,5‐a]pyridine scaffold is presented. In contrast to regular NHOs the unique bicyclic heterocyclic core allows the incorporation of various substituents in close proximity to the highly polarized exocyclic C–C bond.
Robin Esken +6 more
wiley +1 more source
Quantum decoherence of the damped harmonic oscillator [PDF]
Optics and Spectroscopy, 2007 In the framework of the Lindblad theory for open quantum systems, we determine the degree of quantum decoherence of a harmonic oscillator interacting with a thermal bath. It is found that the system manifests a quantum decoherence which is more and more significant in time.
openaire +3 more sources
The Three-Dimensional, Quantum-Mechanical, Anisotropic-Harmonic Oscillator [PDF]
, 1969 Harvey J. Rosenberg
openalex +1 more source
Pulse‐Level Quantum Robust Control with Diffusion‐Based Reinforcement Learning
Advanced Physics Research, EarlyView.This paper proposes a diffusion‐based reinforcement learning method for pulse‐level quantum robust control (PQC‐DBRL) to enhance the robustness of pulse‐level quantum gate control. When evaluated across different Hamiltonian variations, PQC‐DBRL shows a smaller fidelity variance compared to GRAPE, indicating higher robustness against system parameter ...
Yuanjing Zhang +3 more
wiley +1 more source
The quartic anharmonic oscillator - an oscillator-basis expansion approach. I. Energy levels study and calculation [PDF]
Âderna Fìzika ta EnergetikaFor the quantum quartic anharmonic oscillator with the Hamiltonian H=0.5(p2+x2)+λx4 which is one of the classic traditional quantum-mechanical and quantum-field-theory models, its main physical characteristics and properties are thoroughly studied and ...
V. A. Babenko, A. V. Nesterov
doaj +1 more source
A New Look at the Arcsine Law and "Quantum-Classical Correspondence" [PDF]
arXiv, 2012 We prove that the Arcsine law as the time-averaged distribution for classical harmonic oscillators emerges from the distributions for quantum harmonic oscillators in terms of noncommutative algebraic probability. This is nothing but a simple and rigorous realization of "Quantum-Classical Correspondence" for harmonic oscillators.
arxiv
Quantum Nondemolition Measurements of Harmonic Oscillators [PDF]
, 1978 Kip S. Thorne +4 more
openalex +1 more source
Orientation‐Dependent Upper Critical Magnetic Field and Density of State for Uranium Ditelluride
Advanced Physics Research, EarlyView.This study investigates the orientation‐dependent upper critical magnetic field (HC2) and the density of states (DOS) in the unconventional superconductor UTe2. These results reveal an anisotropic HC2, with distinct critical fields along different crystallographic axes, highlighting the role of electronic correlations and spin‐triplet pairing.
Habtamu Anagaw Muluneh
wiley +1 more source
Recent developments in biosensing methods for extracellular vesicle protein characterization
WIREs Nanomedicine and Nanobiotechnology, Volume 15, Issue 1, January/February 2023., 2023 Various biosensing principles may serve for the detection and characterisation of extracellular vesicles. Herein, the key platform are systematically reviewed, with a focus on the most recent and fundamental developments. Abstract Research into extracellular vesicles (EVs) has grown significantly over the last few decades with EVs being widely regarded
Jugal Suthar +4 more
wiley +1 more source
Ground state energy density of the quantum harmonic oscillator [PDF]
arXiv, 2016 The total energy of the ground state of the quantum harmonic oscillator is obtained with minimal assumptions. The vacuum energy density of the universe is derived and a cutoff frequency is obtained for the upper bound of the quantum harmonic oscillator.
arxiv