Results 71 to 80 of about 1,118 (197)

Scanning Tunnelling Microscopy Study of Spin Interactions in Transition‐Metal Phthalocyanine Adsorbates: Mechanisms, Signatures, and Control Strategies

Advanced Science, Volume 13, Issue 33, 15 June 2026.
Transition‐metal phthalocyanine (TMPc) molecules serve as model systems for probing the spin interactions. This review summarizes recent scanning tunnelling microscopy advances on the spin‐related phenomena in TMPc adsorbates, including Kondo effect, spin excitations, and Yu–Shiba–Rusinov states, emphasizing the mechanisms and control strategies, and ...
Fudi Zhou, Can Zhang, Zhaoteng Dong, Mengya Ren, Lili Zhou, Yu Zhang, Yeliang Wang   +6 more
wiley   +1 more source

Ultralow‐Backscattering Induced Mode Splitting in Chipscale Valley Photonic Topological Cavities

Laser &Photonics Reviews, Volume 20, Issue 12, 18 June 2026.
The proposed in‐situ metrology based on mode splitting quantifies the ultralow backscattering of topological valley edge states at a single sharp corner, demonstrating near‐lossless topological transport (0.09 dB/corner) on a silicon chip. This work provides insight into the robustness of the photonic valley system and shows the great potential of ...
Kaiji Chen, Wenhao Wang, Yi Ji Tan, Zhonglei Shen, Ridong Jia, Ranjan Singh   +5 more
wiley   +1 more source

Quasi‐BIC and Reflective Mode Coupling Drives SHG Beyond the Q Factor Limit

Small, Volume 22, Issue 32, 8 June 2026.
An analytical expression is developed to relate second‐harmonic generation to both the resonance Q factor and absorptance. Simulations and experiments on a dual‐resonance 3R‐MoS2 metasurface validate the formula, showing that absorptance engineering provides an effective route to enhance SHG beyond conventional Q‐only design.
Wenkai Yang, Hao Qin, Boqing Liu, Chuanyu Wang, Yilin Tang, Jiri Janousek, Xueqian Sun, Alex Y. Song, Yuerui Lu   +8 more
wiley   +1 more source

Families of lines in Fano varieties complete intersection in a Grassmannian

Le Matematiche, 2002
In this paper we determine all Fano varieties which are complete intersections of hypersurfaces in a Grassmannian. Then, in the case Fano's conjecture is satisfied, we give a formula in order to compute the dimension of the Hilbert scheme that ...
Jorge Cordovez
doaj  

Fano and reflexive polytopes from Feynman integrals

Journal of High Energy Physics
We classify the Fano and reflexive polytopes that arise from quasi-finite Feynman integrals. These polytopes appear as scaled Minkowski sums of the Newton polytopes associated with the Symanzik graph polynomials.
Leonardo de la Cruz, Pavel P. Novichkov, Pierre Vanhove   +2 more
doaj   +1 more source

Clinical recommendations for early identification of patients with open‐angle glaucoma at higher risk of low adherence to topical treatment: An Italian Delphi consensus

Acta Ophthalmologica, Volume 104, Issue 4, Page 384-395, June 2026.
Abstract Purpose It is important for clinicians to identify patients with glaucoma at higher risk of poor adherence to topical therapy at an early stage to prescribe alternative treatments. An expert‐based set of statements was developed to assist clinicians in the early identification of patients at high risk of low adherence and subsequent poorer ...
Roberto G. Carassa, Giovanni Pomponio, Luca Agnifili, Antonio Maria Fea, Michele Iester, Giorgio Marchini, Enrico Martini, Stefano Miglior, Francesco Oddone, Luca Rossetti, Matteo Sacchi, Carlo Enrico Traverso, Michele Figus   +12 more
wiley   +1 more source

Jumping of the nef cone for Fano varieties

, 2011
We construct Q \textbf {Q} -factorial terminal Fano varieties, starting in dimension 4, whose nef cone jumps when the variety is deformed.
Burt Totaro
core   +1 more source

Very free rational curves in Fano varieties

, 2022
Let X be a projective variety and let C be a rational normal curve on X. We compute the normal bundle of C in a general complete intersection of hypersurfaces of sufficiently large degree in X.
Izzet Coskun (10632632), Geoffrey Smith (3803371)   +1 more
core   +1 more source

Polarized Endomorphisms of Fano Varieties With Complements

International Mathematics Research Notices
Abstract Let $X$ be a Fano type variety and $(X,\Delta )$ be a log Calabi–Yau pair with $\Delta $ a Weil divisor. If $(X,\Delta )$ admits a polarized endomorphism, then we show that $(X,\Delta )$ is a finite quotient of a toric pair.
Moraga, Joaquín, Yáñez, José Ignacio, Yeong, Wern   +2 more
openaire   +2 more sources

Automorphism groups of P1$\mathbb {P}^1$‐bundles over geometrically ruled surfaces

Journal of the London Mathematical Society, Volume 113, Issue 6, June 2026.
Abstract We classify the pairs (X,π)$(X,\pi)$, where π:X→S$\pi \colon X\rightarrow S$ is a P1$\mathbb {P}^1$‐bundle over a non‐rational geometrically ruled surface S$S$ and Aut∘(X)$\mathrm{Aut}^\circ (X)$ is relatively maximal, that is, maximal with respect to the inclusion in the group Bir(X/S)$\mathrm{Bir}(X/S)$.
Pascal Fong
wiley   +1 more source