Zobrazeno 1 - 10
of 5 276
pro vyhledávání: '"Bekaert, A."'
We classify a one-parameter family, $\mathfrak{confcarr}_z(d+1)$, of conformal extensions of the Carroll algebra in arbitrary dimension with $z$ being the anisotropic scaling exponent. We further obtain their infinite-dimensional extensions, $\wideti
Externí odkaz:
http://arxiv.org/abs/2409.19953
Borophene stands out among elemental two-dimensional materials due to its extraordinary physical properties, including structural polymorphism, strong anisotropy, metallicity, and the potential for phonon-mediated superconductivity. However, confirmi
Externí odkaz:
http://arxiv.org/abs/2408.04956
Autor:
Bekaert, Xavier, Raj, S. I. Aadharsh
The relation between two branches of solutions (radiative and subradiative) of wave equations on Minkowski spacetime is investigated, for any integer spin, in flat Bondi coordinates where remarkable simplifications occur and allow for exact boundary-
Externí odkaz:
http://arxiv.org/abs/2407.17860
Autor:
Bekaert, Hans, Van Dooren, Wim, Van Winckel, Hans, Poessel, Markus, Thiering, Inge, Nicolini, Marco, Artioli, Enrico, Avgerinou, Despina, Balla, Eleana, De Cock, Mieke
In the context of the European Erasmus+ project Teaching ASTronomy at the Educational level (TASTE), we investigated the extent to which a learning module at school and a set of activities during a planetarium visit help students to gain insight in t
Externí odkaz:
http://arxiv.org/abs/2405.19741
We provide holographic realisations in Minkowski spacetime of a free conformal Carrollian scalar field living at null infinity. To this end, we first show that the electric and magnetic limits of a relativistic conformal scalar are equivalent and we
Externí odkaz:
http://arxiv.org/abs/2404.02533
We explore the emergence of phonon-mediated superconductivity in bilayer borophenes by controlled intercalation with elements from the groups of alkali, alkaline-earth, and transition metals, using systematic first-principles and Eliashberg calculati
Externí odkaz:
http://arxiv.org/abs/2312.07310
Autor:
Blagojević, J., Mijin, S. Djurdjić, Bekaert, J., Opačić, M., Liu, Y., Milošević, M. V., Petrović, C., Popović, Z. V., Lazarević, N.
The vibrational properties of 2H-TaSe$_{2-x}$S$_x$ ($0 \le x \le 2$) single crystals were probed using Raman spectroscopy and density functional theory calculations. The end members revealed two out of four symmetry-predicted Raman active modes, toge
Externí odkaz:
http://arxiv.org/abs/2312.09421
Autor:
Bekaert, Xavier
These notes provide a self-contained introduction to Lie algebroids, Lie-Rinehart algebras and their universal envelopes. This review is motivated by the speculation that higher-spin gauge symmetries should admit a natural formulation as enveloping a
Externí odkaz:
http://arxiv.org/abs/2308.00724
Autor:
Bekaert, Jonas
The superconducting properties of two recently synthesized ternary silicides with unit formula $X_4$CoSi ($X=$ Nb, Ta) are investigated through \textit{ab initio} calculations combined with Eliashberg theory. Interestingly, their crystal structure co
Externí odkaz:
http://arxiv.org/abs/2306.00626
We propose a systematic generating procedure to construct free Lagrangians for massive, massless and partially massless, totally-symmetric tensor fields on $AdS_{d+1}$ starting from the BRST Lagrangian description of massless fields in the flat ambie
Externí odkaz:
http://arxiv.org/abs/2305.02892