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Spectrum - Astrophysics Data System

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Last Updated: 09 September 2022

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The squeezed Kerr oscillator: spectral kissing and phase-flip robustness

This model illustrates, as the squeezing amplitude rises, a transformation from a single ground state regime to a doubly-degenerate ground state system. The lifetime of the cat state's cohesive state components increases in steps as a result of increasing amplitude. We achieve for the first time quantum nondemolition readout fidelities rises by more than 99%, and the extension of the phase-flip life by more than two orders of magnitude while maintaining universal quantum control, considering the Kerr-cat qubit encoded in this ground state manifold.

Source link: https://ui.adsabs.harvard.edu/abs/2022arXiv220903934F/abstract


Hemispherical asymmetry of primordial power spectra

We achieve this by introducing a double vacuum system for inflationary quantum fluctuations in a gravitational context, first in de Sitter and then in quasi de Sitter. We also expect that a similar hemispherical asymmetry should emerge for the primordial gravitational waves as well as estimates of PGW spectra at various wave numbers, as well as PGW asymmetry.

Source link: https://ui.adsabs.harvard.edu/abs/2022arXiv220903928S/abstract


Spectral minimal partitions of unbounded metric graphs

On the one hand, we demonstrate that there is a strong link between spectral minimal partitions and infimal partition energies, as well as the infimum 0̆3a3 of the essential spectrum of the corresponding Schr"odinger operator's whole graph on the other.

Source link: https://ui.adsabs.harvard.edu/abs/2022arXiv220903658H/abstract


Simulation of scattering from layered spheres with known surface electric field distributions using Mie theory and modified angular spectrum method: Applications to corneal sensing

Mie theory is a simple tool to analyze the scattered fields from the multilayered globe, where the incident field has been expanded to the vector spherical harmonic presentation. This paper introduces a novel 3D angular spectrum technology for determining the VSH coefficients for the event field, which is determined from the recommended electric field distribution positioned on the spherical surface. With the spherical bandstop filter simulation, the benefit of the beam produced with the new technique relative to the nominal Gaussian beam illumination is discussed first. The results are compared with coupling coefficients obtained with Gaussian beam illumination and related to the reflectivity obtained from plane wave illumination on an analog planar structure. Compared to the plane wave and Gaussian beam illumination, the top-hat beams show increased agreement with the planar stratified medium theory.

Source link: https://ui.adsabs.harvard.edu/abs/2022arXiv220903043L/abstract

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions