Category: 4. Physics

Deep learning architecture

Figure 1 summarizes the overall workflow. First of all, to explore the quantum phases of moiré materials, a neural network is employed to represent the many-body wavefunction. The neural network wavefunction Ψ_net has…

The short pulse (SP) equation is well known equation used for describing the propagation of ultra-short optical pulses in quartz fibers by Schafer and Wayneo^1,2. The SP equation is

Pedestrian movements within the university campus will be described by first introducing a campus walking network. In this network, arcs represent pedestrian infrastructures, i.e. pavements, other footpaths and pedestrian crossings, with their…

MoS₂ Raman spectra: continuous vs pulsed laser excitation

Figure 1a shows the structure of the investigated systems: bulk MoS₂, where no substrate effects are expected; 1 L MoS₂/ITO, i.e. single-layer MoS₂ on an indium tin oxide substrate, which…

First, we will discuss how the size and complexity of the FSO encoder can be dramatically reduced using emerging nanophotonic structures. For a long time, all the FSO encoders are implemented in discrete macroscopic optics (e.g., lens, mirror,…

STM measurements

We fabricated a number of Au/YBCO heterostructures consisting of 30 to 35-nm-thick epitaxial YBCO films deposited on vicinal SrTiO₃ (STO) and NdGaO₃ (NGO) substrates and covered in situ with a 15-nm-thick gold layer. Since a low…

SHG optical selection rules in 3R-TMDCs

The rhombohedral 3R and hexagonal 2H phases of TMDCs differ significantly in their stacking arrangements, which profoundly impact their symmetry and nonlinear optical properties. In the more common 2H phase,…

This section provides detailed proofs and a comprehensive description of the MLE-based methods (LR-MLE and MPO-MLE) introduced in the last section.

Proof of Equation 4

Proof

We expand

Workflow fitted for the NEP model

As illustrated in Fig. 1, an active learning workflow was employed to develop a high-accuracy MLP for carbon deposition. This framework iteratively integrates NEP training and DFT validation during hybrid MD/tfMC…

Experiments in cooperative transport

Stochastic self-propelled robots were built following a modified bristle bot design^36,38,40,44. A robot (sizing 5–6 cm in diameter) is driven by two vibration motors mounted on a tripod with one stiff leg…