Category: 4. Physics

Super-resolution can be explained via the definition of maximally entangled state, that can be written as²⁵:

On the formation mechanism of hook-type eddies

These results necessitate a discussion on the mechanism of formation of hook-type cyclonic eddies. As mentioned earlier, it is possible that the hook-type eddies are realizations of the growth of…

In this section, we want to investigate the nonclassical feature of the particles. Especially, we are interested in finding under what conditions the strong antibunching and blockade effect can be realized in the dynamical behavior of the photons…

Theory

Consider a quantized electromagnetic field \(\hat{E}\) transmitted over free space to a phased array receiver. The field can be decomposed into positive and negative frequency components, \(\hat{E}={\hat{E}}^{+}+{\hat{E}}^{-}\), where

Calculating (\(\mu _{PE},\mu _{CS}\))

In 1976 Alvarez and Macovski¹⁴ described that for energies relevant for medical imaging, the x-ray attenuation \(\mu\) for any material can be approximated as

Inversion framework for determining elastic constants

To determine the elastic constants of laminated composites, this study presents an inversion framework. First, a time–space wavefield of omnidirectional guided waves is acquired using laser…

FTIR spectrum analysis

Fourier-transform infrared (FTIR) spectroscopy was employed to analyze the chemical composition and functional groups present in cerium dioxide and non-imprinted polymer nanoparticles^32,33. As illustrated in Fig. 2a, the…

July 28, 2025• Physics 18, 139

Using ultrafast x-ray pulses, researchers have probed the chirality of spin spirals in synthetic…