Statistical analysis revealed significant heterogeneity in transmission patterns across different waves of the pandemic. For instance, during the first wave, the majority of infected individuals were elderly (70 years and above) especially in…
Category: 4. Physics
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Toward a linear-ramp QAOA protocol: evidence of a scaling advantage in solving some combinatorial optimization problems
In this section, we describe the LR-QAOA, some properties of LR-QAOA, the combinatorial optimization problems used, the classical solvers used to compare scaling properties, and experimental details on real quantum hardware.
LR-QAOA
QAOA consists…
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Tunable magnetic coupling of monolayer CrI2 by strain engineering
Ground states of CrI2 monolayer
We specifically derive the U value from the monolayer structure, which is relevant to our study. On-site Coulomb interaction to the Cr d orbitals was calculated using the linear response method30. We calculate the…
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Measuring correlation and entanglement between molecular orbitals on a trapped-ion quantum computer
Classical computational chemistry
Initially, the minimum-energy path of the VC + \(^1\)O\(_2\) \(\rightarrow\) dioxetane reaction is determined with the nudged elastic band (NEB) method, using PySCF and Jónsson’s group implementation of NEB34…
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Thermal radiation effects on nanofluid flow over a vertical cone in the presence of pressure work
To solve the system (10)–(12) using egendre-collocation technique35, the solution domain should transformed from \([0,{L}_{\eta }]\) or \([0,{L}_{\xi }]\) to the interval \([-{1,1}]\). Hence, the linear transformations \(\eta…
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This new titanium alloy is 29% cheaper, and even stronger
Engineers from RMIT University, Australia, have produced a new type of 3D-printed titanium that’s about a third cheaper than commonly used titanium alloys.
The team used readily available and cheaper alternative materials to replace the…
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SCAPS simulation and design of highly efficient CuBi2O4-based thin-film solar cells (TFSCs) with hole and electron transport layers
Simulations of an inorganic TFSC were carried out using the software. During the simulation, the base temperature is 300 K, the illumination is AM1.5G, and the photon intensity is 100mW/cm260.
Performance of solar cells with HTL materials
The…
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Comparative analysis of Monte Carlo simulations and experimental evaluation of PMMA reinforced with hgo for gamma radiation shielding
Preparing the composite
The synthesis was carried out in several steps. First, the required materials were gathered, including virgin PMMA resin (Fig. 1A), HgO powder, dichloromethane (solvent), a magnetic stirrer, a four-decimal electronic…
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A mirrored pair of optimal non-decomposable entanglement witnesses for two qudits does exist
Interestingly, EWs and states considered in this paper belong to the well-known class of Bell diagonal operators42,43,44,45,46,47,48. Introducing a set of unitary Weyl operators in \(\mathbb {C}^d\)
$$\begin{aligned} W_{k\ell } = \sum _{j=0}^{d-1}…
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Multi-level data fusion enables collaborative dynamics analysis in team sports using wearable sensor networks
Experimental design and data collection
The experimental protocol was designed to capture collaborative dynamics across varying competitive scenarios while ensuring ecological validity and measurement reliability. Participant selection employed…
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