Zobrazeno 1 - 10
of 588
pro vyhledávání: '"Sigurðsson P"'
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
Autor:
Magnússon, Benedikt Steinar, Sigurðardóttir, Álfheiður Edda, Sigurðsson, Ragnar, Snorrason, Bergur
The main result of this paper is that an entire function $f$ that is in $L^2(\mathbb C^n,\psi)$ with respect to the weight $\psi(z)=2mH_S(z)+\gamma\log(1+|z|^2)$ is a polynomial with exponents in $m\widehat S_\Gamma$. Here $H_S$ is the logarithmic su
Externí odkaz:
http://arxiv.org/abs/2305.06847
Autor:
Magnússon, Benedikt Steinar, Sigurðardóttir, Álfheiður Edda, Sigurðsson, Ragnar, Snorrason, Bergur
This paper is a survey of plurisubharmonic theory where the usual polynomial ring is replaced by a polynomial ring $\mathcal P^S(\mathbb C^n)$ where the $m$-th degree polynomials have exponents restricted to $mS$, where $S\subseteq \mathbb R^n_+$ is
Externí odkaz:
http://arxiv.org/abs/2305.04779