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- University of PisaIT365 papers
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37 papers · 1 filter
Error bounds for the approximation of matrix functions with rational Krylov methods
Igor Simunec
We obtain an expression for the error in the approximation of and with rational Krylov methods, where is a symmetri…
Growth and applications of two-dimensional single crystals
Zhibin Zhang, Stiven Forti, Wanqing Meng +5
Two-dimensional (2D) materials have received extensive research attentions over the past two decades due to their intriguing physical properties (such as the ultrahigh mobility and…
Collisional excitation of PO by -H
F. Tonolo, L. Bizzocchi, V. M. Rivilla +3
We report the derivation of rate coefficients for the rotational (de-)excitation of PO induced by collisions with H. The calculations were performed on a four-dimensional p…
Scalable High-Mobility Graphene/hBN Heterostructures
Leonardo Martini, Vaidotas Mišeikis, David Esteban +8
Graphene-hexagonal boron nitride (hBN) scalable heterostructures are pivotal for the development of graphene-based high-tech applications. In this work, we demonstrate the realizat…
Erbium-doped WS with Down- and Up-Conversion Photoluminescence Integrated on Silicon for Heterojunction Infrared Photodetection
Qiuguo Li, Hao Rao, Haijuan Mei +5
The integration of 2D nanomaterials with silicon is expected to enrich the applications of 2D functional nanomaterials and to pave the way for next-generation, nanoscale optoelectr…
Are there more galaxies than we see around high- quasars?
Tommaso Zana, Stefano Carniani, David Prelogović +5
Whether or not quasars lie in the most massive dark-matter halos of the Universe is still a subject of dispute. While most theoretical studies support this scenario,…