Results 1 to 10 of about 51,311 (264)

Reflectionless excitation of arbitrary photonic structures: a general theory [PDF]

open access: yesNanophotonics, 2020
We outline and interpret a recently developed theory of impedance matching or reflectionless excitation of arbitrary finite photonic structures in any dimension. The theory includes both the case of guided wave and free-space excitation. It describes the
Stone A. Douglas   +4 more
doaj   +4 more sources

Generalization of the Optical Theorem to an Arbitrary Multipole Excitation of a Particle near a Transparent Substrate

open access: yesMathematics, 2021
In the present paper, the generalization of the optical theorem to the case of a penetrable particle deposited near a transparent substrate that is excited by a multipole of an arbitrary order and polarization has been derived.
Yuri A. Eremin, Thomas Wriedt
doaj   +3 more sources

The simulation of spin echo excitation by pulses with arbitrary modulation

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2015
The method of solving the equations of motion of the magnetization vector in a pulsed magnetic field with arbitrary modulation based on stepwise approximation of the complex envelope.
S. A. Baruzdin
doaj   +1 more source

Universal quantum circuits for quantum chemistry [PDF]

open access: yesQuantum, 2022
Universal gate sets for quantum computing have been known for decades, yet no universal gate set has been proposed for particle-conserving unitaries, which are the operations of interest in quantum chemistry.
Juan Miguel Arrazola   +5 more
doaj   +1 more source

IMPEDANCE VIBRATOR WITH ARBITRARY POINT OF EXCITATION [PDF]

open access: yesProgress In Electromagnetics Research B, 2008
The approximate analytical solution of the integral equation concerning the current in a thin straight vibrator with complex surface impedance has been obtained. The vibrator is located in unlimited space and is excited in an arbitrary point along its length.
Mikhail V. Nesterenko   +3 more
openaire   +1 more source

Magnetosonic Excitation of the Entropy Perturbations in a Plasma with Thermal Conduction Depending on Temperature

open access: yesArchives of Acoustics, 2021
Nonlinear excitation of the entropy perturbations by magnetosonic waves in a uniform and infinite plasma model is considered. The wave vector of slow or fast mode forms an arbitrary angle θ (0≤θ≤π) with the equilibrium straight magnetic field, and all ...
Anna PERELOMOVA
doaj   +1 more source

Macroscopic fluctuations emerge in balanced networks with incomplete recurrent alignment

open access: yesPhysical Review Research, 2021
Networks of strongly coupled neurons with random connectivity exhibit chaotic, asynchronous fluctuations. In a previous study, we showed that when endowed with an additional component of low-rank connectivity consisting of the outer product of orthogonal
Itamar D. Landau, Haim Sompolinsky
doaj   +1 more source

Tailoring spin chain dynamics for fractional revivals [PDF]

open access: yesQuantum, 2017
The production of quantum states required for use in quantum protocols & technologies is studied by developing the tools to re-engineer a perfect state transfer spin chain so that a separable input excitation is output over multiple sites. We concentrate
Alastair Kay
doaj   +1 more source

Entanglement of exact excited eigenstates of the Hubbard model in arbitrary dimension [PDF]

open access: yesSciPost Physics, 2017
We compute exactly the von Neumann entanglement entropy of the eta-pairing states - a large set of exact excited eigenstates of the Hubbard Hamiltonian. For the singlet eta-pairing states the entropy scales with the logarithm of the spatial dimension of the (smaller) partition.
Vafek, Oskar   +2 more
openaire   +3 more sources

Unified treatment of nonlinear optical force in laser trapping of dielectric particles of varying sizes

open access: yesPhysical Review Research, 2021
Optical trapping using laser tweezer has revolutionized the field of force spectroscopy having enormous applications in biological manipulation. While a number of theories were developed for particles of different sizes to estimate trapping force under ...
Anita Devi, Arijit K. De
doaj   +1 more source

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