Results 101 to 110 of about 239,273 (289)

Quantum versus Semiclassical Description of Selftrapping: Anharmonic Effects

open access: yes, 1999
Selftrapping has been traditionally studied on the assumption that quasiparticles interact with harmonic phonons and that this interaction is linear in the displacement of the phonon.
A. R. Bishop   +18 more
core   +2 more sources

Quantum probability applied to the damped harmonic oscillator [PDF]

open access: yesarXiv, 2004
In this introductory course we sketch the framework of quantum probability in order to discuss open quantum systems, in particular the damped harmonic oscillator.
arxiv  

Ambient‐Air‐Processed, Solution‐Based Organic Photovoltaics and Photodetectors

open access: yesAdvanced Optical Materials, EarlyView.
This review explores ambient‐air‐processed, solution‐based organic photovoltaics (OPVs) and organic photodetectors (OPDs). It highlights advancements in photoactive materials, charge transport layers, and electrodes integrated into devices processed in ambient air via solution‐based methods, examining their performance, stability, and scalability, and ...
Bahareh Nasrollahi   +3 more
wiley   +1 more source

Thermodynamics of the Harmonic Oscillator: Wien's Displacement Law and the Planck Spectrum

open access: yes, 2002
A thermodynamic analysis of the harmonic oscillator is presented. Motivation for the study is provided by the blackbody radiation spectrum; when blackbody radiation is regarded as a system of noninteracting harmonic oscillator modes, the thermodynamics ...
Boyer, Timothy H.
core   +1 more source

Stochastic Electrodynamics: Lessons from Regularizing the Harmonic Oscillator

open access: yesAtoms, 2019
In this paper, the harmonic oscillator problem in Stochastic Electrodynamics is revisited. Using the exact shape of the Lorentz damping term prevents run-away effects.
Theodorus Maria Nieuwenhuizen
doaj   +1 more source

Riesz transforms for the Dunkl harmonic oscillator [PDF]

open access: yesMath. Z. 262 (2009), 539-556., 2008
We define and investigate a system of Riesz transforms related to the Dunkl harmonic oscillator.
arxiv  

Improved Laser Performance of Carbon‐Bridged Oligo(p‐phenylenevinylene)s Through σ‐π Conjugation with Silyl Groups

open access: yesAdvanced Optical Materials, EarlyView.
Shorter blue‐emitting carbon‐bridged oligo(p‐phenylenevinylene)s (COPVm, m = 1,2) encounter challenges with photostability and high lasing thresholds. This study demonstrates the effectiveness of σ‐π conjugation to improve these properties, through functionalization of COPV2 with terminal silyl group (COPV2–Si1 and COPV2–Si2).
Álex Farrando‐Pérez   +9 more
wiley   +1 more source

The su(1,1) dynamical algebra from the Schr\"odinger ladder operators for N-dimensional systems: hydrogen atom, Mie-type potential, harmonic oscillator and pseudo-harmonic oscillator

open access: yes, 2010
We apply the Schr\"odinger factorization to construct the ladder operators for hydrogen atom, Mie-type potential, harmonic oscillator and pseudo-harmonic oscillator in arbitrary dimensions.
Adams B G   +15 more
core   +1 more source

Giant Rabi Splitting and Polariton Photoluminescence in an all Solution‐Deposited Dielectric Microcavity

open access: yesAdvanced Optical Materials, EarlyView.
Lowering the barrier for researchers to explore polariton physics: A fully solution‐processed dielectric polariton microcavity incorporating Rhodamine 6G with tunable Rabi splitting up to 400 meV and photoluminescence. Abstract Planar microcavity polaritons have recently emerged as a promising technology for improving several performance ...
Hassan A. Qureshi   +7 more
wiley   +1 more source

Transitionless quantum drivings for the harmonic oscillator

open access: yes, 2009
Two methods to change a quantum harmonic oscillator frequency without transitions in a finite time are described and compared. The first method, a transitionless-tracking algorithm, makes use of a generalized harmonic oscillator and a non-local potential.
A Ruschhaupt   +12 more
core   +1 more source

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