Hasil untuk "cond-mat.soft"

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Stain Removal Efficiency of TiO2 Nanoparticles

Dr. Meeta Saxena

This study focuses on the synthesis of titanium dioxide (TiO2) nanoparticles (NP) using both chemical and green synthesis methods to evaluate their effectiveness in stain removal when applied to fabrics. The research aims to compare the detergency properties of TiO2 nanoparticles synthesized through conventional chemical techniques and eco-friendly approaches. The performance of these nanoparticles is assessed based on their ability to break down stains, highlighting their potential for textile treatment and environmental cleaning. The findings emphasize the advantages of green synthesis, contributing to sustainable and efficient fabric care solutions.

S2 Open Access 2017
Extremal properties of conditional entropy and quantum discord for XXZ, symmetric quantum states

M. Yurischev

For the XXZ subclass of symmetric two-qubit X states, we study the behavior of quantum conditional entropy $$S_{cond}$$Scond as a function of measurement angle $$\theta \in [0,\pi /2]$$θ∈[0,π/2]. Numerical calculations show that the function $$S_{cond}(\theta )$$Scond(θ) for X states can have at most one local extremum in the open interval from zero to $$\pi /2$$π/2 (unimodality property). If the extremum is a minimum, the quantum discord displays region with variable (state-dependent) optimal measurement angle $$\theta ^*$$θ∗. Such $$\theta $$θ-regions (phases, fractions) are very tiny in the space of X-state parameters. We also discover the cases when the conditional entropy has a local maximum inside the interval $$(0,\pi /2)$$(0,π/2). It is remarkable that the maxima exist in surprisingly wide regions, and the boundaries for such regions are defined by the same bifurcation conditions as for those with a minimum.

13 sitasi en Physics, Computer Science

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