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- Chinese Academy of SciencesCN215 papers
- High Magnetic Field LaboratoryCN175 papers
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- Institute of PhysicsPL32 papers
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5 papers · 1 filter
de Haas-van Alphen study on three-dimensional topological semimetal pyrite PtBi2
Wenshuai Gao, Xiangde Zhu, Hongwei Zhang +7
We present the systematic de Haas-van Alphen (dHvA) quantum oscillations studies on the recently discovered topological Dirac semimetal pyrite PtBi2 single crystals. Remarkable dHv…
Optimal Credit Investment and Risk Control for an Insurer with Regime-Switching
Lijun Bo, Huafu Liao, Yongjin Wang
This paper studies an optimal investment and risk control problem for an insurer with default contagion and regime-switching. The insurer in our model allocates his/her wealth acro…
Design of Near Infrared Sky Brightness Monitor and Test Running at Ngari Observatory in Tibet
Qi-Jie Tang, Jian Wang, Shu-cheng Dong +16
Tibet is known as the third pole of the earth, as high as the South Pole and North Pole. The Ngari (Ali) observatory in Tibet has the advantage of plenty of photometric night, low…
Atomically resolved probe-type scanning tunneling microscope for use in harsh vibrational cryogen-free superconducting magnet
Wenjie Meng, Jihao Wang, Yubin Hou +5
We present a probe-type scanning tunneling microscope (STM) with atomic resolution that is designed to be directly inserted and work in a harsh vibrational cryogen-free superconduc…
A spectral version of the Moore problem for bipartite regular graphs
Sebastian M. Cioabă, Jack H. Koolen, Hiroshi Nozaki
Let be the maximum order of a connected bipartite -regular graph whose second largest eigenvalue is at most . In this paper, we obtain a general upper bound for $b(k…