Capillary displacement of a silicone oil slug
A capillary tube which contains a silicone oil slug of length \(H_0\) and viscosity \(\eta\) is put in contact with the free surface of water. The latter starts displacing the liquid slug due to…
Category: 4. Physics
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mathematician who established that Einstein’s equations mirror the real world
Credit: Joel Robine/AFP via Getty
Yvonne Choquet-Bruhat was a giant of the mathematical study of Albert Einstein’s general theory of relativity. Her theorem establishing the existence of solutions to Einstein’s equations is central to how…
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Unified deep learning framework for many-body quantum chemistry via Green’s functions
Kohn, W. & Sham, L. J. Self-consistent equations including exchange and correlation effects. Phys. Rev. 140, A1133 (1965).
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Cohen, A. J., Mori-Sánchez, P. & Yang,…
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Néel domain walls with bistable chirality in a perpendicularly magnetized ferrimagnetic insulator
A EuIG film with a thickness of 12 nm was epitaxially grown on a (110)-oriented gadolinium gallium garnet (GGG) substrate using pulsed laser deposition. The film is perpendicularly magnetized (lowest energy axis normal to the film plane and…
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Non-Linear Super-Stencils for turbulence model corrections
This section starts by explaining the RANS closure problem, outlines our methodology (about which more details can be found in the methods section), and finally reports our testing procedure and results.
RANS closure problem
Incompressible flow…
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A demonstrative study of a novel approach for spectral based source apportionment of ambient aerosols
Luoma, K. et al. Spatiotemporal variation and trends in equivalent black carbon in the Helsinki metropolitan area in Finland. Atmos. Chem. Phys. 21, 1173–1189. https://doi.org/10.5194/acp21-1173-2021 (2021).
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Control of tissue flows and embryo geometry in avian gastrulation
Collinet, C. & Lecuit, T. Programmed and self-organized flow of information during morphogenesis. Nat. Rev. Mol. Cell Biol. 22, 245–265 (2021).
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Wolpert, L., Tickle,…
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Unveiling quantum phase transitions from traps in variational quantum algorithms
In this section, we apply our algorithm, described in Section METHODS, to study quantum phase transitions in various quantum models. We begin with the 1D transverse-field Ising model (TFIM) with periodic boundary conditions. This model,…
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Active ramp-down control and trajectory design for tokamaks with neural differential equations and reinforcement learning
The first three subsections aim to provide the reader with an overview of the techniques this paper draws from, with subsequent subsections providing further technical detail. The first subsection aims to define the framework and capabilities of…
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Ultracold long-range van der Waals Rydberg trimers
Gallagher, T. F. Rydberg Atoms. 3 (Cambridge University Press, 2005).
Saffman, M., Walker, T. G. & Mølmer, K. Quantum information with Rydberg atoms. Rev. Mod. Phys. 82, 2313–2363 (2010).
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