Zobrazeno 1 - 10
of 512
pro vyhledávání: '"Á. Sigurðsson"'
Autor:
R. King, M. J. Gunnarsdottir, Þ. Narfason, S. Hjaltadóttir, Á. Sigurðsson, J. Herschan, S. M. Gardarsson, R. M. McKeown, K. Pond
Publikováno v:
Journal of Water and Health, Vol 20, Iss 5, Pp 755-769 (2022)
Sanitary inspections (SIs) are checklists of questions used to identify actual and potential sources and pathways of drinking water contamination. Though the importance of SI adaptation to local contexts is widely acknowledged, there is currently lim
Externí odkaz:
https://doaj.org/article/8fa3193e1c9c453bac0eb95477503d16
Autor:
Alyatkin, Sergey, Sitnik, Kirill, Daníelsson, Valtýr Kári, Kartashov, Yaroslav V., Töpfer, Julian D., Sigurðsson, Helgi, Lagoudakis, Pavlos G.
Aperiodic crystals are the intermediates between strictly periodic crystalline matter and amorphous solids. The lack of translational symmetry combined with intrinsic long-range order endows aperiodic crystals with unique physical characteristics, wh
Externí odkaz:
http://arxiv.org/abs/2409.16801
Autor:
Sanches, J. E., Lustosa, L. T., Ricco, L. S., Sigurðsson, H., de Souza, M., Figueira, M. S., Marinho Jr., E., Seridonio, A. C.
The "Poor Man's Majorana" [Phys. Rev. B 86, 134528 (2012)] devoid of topological protection has been theoretically predicted to rely on the minimal Kitaev chain. Afterward, a pair of superconducting and spinless quantum dots turned the proposal pract
Externí odkaz:
http://arxiv.org/abs/2408.15080
Autor:
Kędziora, Mateusz, Król, Mateusz, Kapuściński, Piotr, Sigurðsson, Helgi, Mazur, Rafał, Piecek, Wiktor, Szczytko, Jacek, Matuszewski, Michał, Opala, Andrzej, Piętka, Barbara
Exploring the non-Hermitian properties of semiconductor materials for optical applications is at the forefront of photonic research. However, the selection of appropriate systems to implement such photonic devices remains a topic of debate. In this w
Externí odkaz:
http://arxiv.org/abs/2408.11663
Bound states in the continuum have recently been utilized in photonic crystal gratings to achieve strong coupling and ultralow power-driven condensation of bosonic exciton-polariton quasiparticles with atypical Dirac-like features in their dispersion
Externí odkaz:
http://arxiv.org/abs/2310.08423
We study the magneto-photoluminescence of an optically trapped exciton-polariton condensate in a planar semiconductor microcavity with multiple In0.08Ga0.92As quantum wells. Extremely high condensate coherence time and continuous control over the pol
Externí odkaz:
http://arxiv.org/abs/2308.05351
We generalize the Bernstein-Walsh-Siciak theorem on polynomial approximation in $\mathbb{C}^n$ to the case where the polynomial ring $\mathcal{P}(\mathbb{C}^n)$ is replaced by a subring $\mathcal{P}^S(\mathbb{C}^n)$ consisting of all polynomials with
Externí odkaz:
http://arxiv.org/abs/2306.02486
Autor:
Aristov, Denis, Baryshev, Stepan, Töpfer, Julian D., Sigurðsson, Helgi, Lagoudakis, Pavlos G.
We report on the realization of all-optical planar microlensing for exciton-polariton condensates in semiconductor microcavities. We utilize spatial light modulators to structure a nonresonant pumping beam into a planoconcave lens-shape focused onto
Externí odkaz:
http://arxiv.org/abs/2305.19682
We study the separatrices at the origin of the vector field $-\nabla \log |f|$, where $f$ is any plane curve singularity. Under some genericity conditions on the metric, we produce a natural partition of the set of separatrices, $S$, into a finite co
Externí odkaz:
http://arxiv.org/abs/2305.12555
The classical Siciak-Zakharyuta theorem states that the Siciak-Zakharyuta function $V_{E}$ of a subset $E$ of $\mathbb C^n$, also called a pluricomplex Green function or global exremal function of $E$, equals the logarithm of the Siciak function $\Ph
Externí odkaz:
http://arxiv.org/abs/2305.08260