Results 71 to 80 of about 565,635 (243)

The effect of dipole-dipole interaction for two atoms with different couplings in non-Markovian environment [PDF]

open access: yes, 2008
Using the nonperturbative method, we study the exact entanglement dynamics of two two-level dipole-dipole interacting atoms coupled to a common non-Markovian reservoir with different coupling strengths. Besides analyzing the conditions for the existence of steady state, we find, though the dipole-dipole interaction could destroy the stationary ...
arxiv   +1 more source

Square-Shaped Circularly Polarized MIMO Dipole Antenna With Dual-Sense Characteristic for 5G Application

open access: yesIEEE Access
A new approach of dual-sense circularly polarized (CP) MIMO dipole antenna design is presented in this study, which is suitable for Sub-6 GHz 5G applications, explicitly targeting the n78 frequency band (3.3–3.8 GHz).
Hanieh Hashemi Asl   +3 more
doaj   +1 more source

Simplified approach to double jumps for fluorescing dipole-dipole interacting atoms

open access: yes, 2006
A simplified scheme for the investigation of cooperative effects in the quantum jump statistics of small numbers of fluorescing atoms and ions in a trap is presented.
Hannstein, Volker   +1 more
core   +1 more source

Scattering of color dipoles: from low to high energies [PDF]

open access: yes, 2002
A dipole-dipole scattering amplitude is calculated exactly in the first two orders of perturbation theory. This amplitude is an analytic function of the relative energy and the dipoles' sizes.
Babansky, Alexander, Balitsky, Ian
core   +3 more sources

The field-induced interaction between non-resonant magnetic dipoles [PDF]

open access: yesJ. Phys. B, 53, 065003 (2020), 2019
We make a general derivation for the magnetic dipole-dipole interaction based on the mediation of the quantized electro-magnetic field. Due to the interaction with the dipoles, the dynamics of the field is added by a dipole field, which finally gives rise to the dipole-dipole interaction. Different from previous studies, the rotating-wave-approximation
arxiv   +1 more source

Quantum Dots (QD-Dye Conjugate) are Ideal Candidates for FRET Investigations Using TIRMicroscopy [PDF]

open access: yesEngineering and Technology Journal, 2014
Total Internal Reflection Microscopy has been employed to investigate Förster resonance energy transfer FRET for QD-dye conjugate system. QDs based donor systems are ideal for FRET for many reasons, one of them is that their broad excitation cross ...
Asma H. Mohammed
doaj   +1 more source

Cosmic dipoles of active galactic nuclei at optical and radio wavelengths display much larger amplitudes than the cosmic microwave background dipole [PDF]

open access: yesMNRAS 532, L1 (2024)
Sky distributions of large samples of distant active galactic nuclei (AGNs) have shown dipoles significantly larger than the cosmic microwave background (CMB) dipole. However, a recent Bayesian analysis of the QUAIA sample, comprising 1.3 million quasars, has yielded a dipole that seems to be in tandem with the CMB dipole, in contravention of most ...
arxiv   +1 more source

Comportamento das Águas Superficiais nos Oceanos Pacifico e Atlântico Durante o Período de 1982 a 2014

open access: yesRevista Brasileira de Meteorologia
Resumo O objetivo deste estudo é analisar o comportamento das temperaturas da superfície do mar (TSM) nas áreas dos Niños no oceano Pacífico e nas áreas correspondente ao Dipolo (N-S), no oceano Atlântico, durante o período de 1982 a 2014.
Flaviano Fernandes Ferreira   +6 more
doaj   +1 more source

Geometrical simplification of the dipole–dipole interaction formula [PDF]

open access: yesPhysics Education, 2010
Many students meet quite early this dipole-dipole potential energy when they are taught electrostatics or magnetostatics, and it is also a very popular formula, featured in the encyclopedias. We show that by a simple rewriting of the formula it becomes apparent that for example, by reorienting the two dipoles, their attraction can become exactly twice ...
Ladislav Kocbach, Suhail Lubbad
openaire   +3 more sources

Ideal magnetic dipole scattering

open access: yes, 2017
We introduce the concept of tunable ideal magnetic dipole scattering, where a nonmagnetic nanoparticle scatters lights as a pure magnetic dipole.
Feng, Tianhua   +3 more
core   +1 more source

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