Zobrazeno 1 - 10
of 247
pro vyhledávání: '"Fu Yuxi"'
An $\mathsf{F}_{d}$ upper bound for the reachability problem in vector addition systems with states (VASS) in fixed dimension is given, where $\mathsf{F}_d$ is the $d$-th level of the Grzegorczyk hierarchy of complexity classes. The new algorithm com
Externí odkaz:
http://arxiv.org/abs/2404.14781
Branching and weak probabilistic bisimilarities are two well-known notions capturing behavioral equivalence between nondeterministic probabilistic systems. For probabilistic systems, divergence is of major concern. Recently several divergence-sensiti
Externí odkaz:
http://arxiv.org/abs/2403.00491
Autor:
Yang, Qizhe, Fu, Yuxi
The reachability problem for vector addition systems with states (VASS) has been shown to be \textsc{Ackermann}-complete. For every $k\geq 3$, a completeness result for the $k$-dimensional VASS reachability problem is not yet available. It is shown i
Externí odkaz:
http://arxiv.org/abs/2306.05710
Publikováno v:
EPJ Web of Conferences, Vol 205, p 01008 (2019)
By employing a dual-chirped optical parametric amplification (DC-OPA) using MgO:LiNbO3 crystals, we generate 31 mJ mid-infrared (MIR) pulses at 3.3 um with a repetition rate of 10 Hz. After passing through a CaF2 bulk compressor which has 70% through
Externí odkaz:
https://doaj.org/article/e5039917ed79484689d904e680e2ee94
Generation of high-flux soft X-ray high harmonics driven by loosely focused TW-class infrared pulses
Publikováno v:
EPJ Web of Conferences, Vol 205, p 02012 (2019)
We develop an experimental strategy for generating high-flux soft x-ray high-order harmonics (HH) driven by loosely focused high-energy infrared femtosecond pulses. Strong soft x-ray HHs are generated in a long Ne medium.
Externí odkaz:
https://doaj.org/article/5e96d0b046d04f9892fe58059a4596a0
Autor:
Wu, Zhaohui, Peng, Hao, Zeng, Xiaoming, Li, Zhaoli, Zhang, 1 Zhimeng, Cao, 1 Huabao, Fu, Yuxi, Wang, Xiaodong, Wang, Xiao, Mu, Jie, Zuo, 1 Yanlei, Riconda, C., Weber, S., Su, Jingqin
We present a novel approach named as pumping ionizing gating (PIG) for the generation of isolated attosecond pulses (IAPs). In this regime, a short laser is used to ionize a pre-existing gas grating, creating a fast-extending plasma grating(FEPG) hav
Externí odkaz:
http://arxiv.org/abs/2212.06599
A custom-tailored multi-TW optical electric field for gigawatt soft-x-ray isolated attosecond pulses
Autor:
Xue, Bing, Tamaru, Yuuki, Fu, Yuxi, Yuan, Hua, Lan, Pengfei, Mücke, Oliver D., Suda, Akira, Midorikawa, Katsumi, Takahashi, Eiji J.
Publikováno v:
Ultrafast Science, vol. 2021, Article ID 9828026, 13 pages, 2021
The bottleneck for an attosecond science experiment is concluded to be the lack of a high-peak-power isolated attosecond pulse source. Therefore, currently, generating an intense attosecond pulse would be one of the highest priority goals. In this pa
Externí odkaz:
http://arxiv.org/abs/2104.03625
Autor:
Shibuya, Kyuki, Nawata, Kouji, Nakajima, Yoshiaki, Fu, Yuxi, Takahashi, Eiji J., Midorikawa, Katsumi, Yasui, Takeshi, Minamide, Hiroaki
We demonstrate an efficient procedure for terahertz-wave radiation generation by applying a nonlinear wavelength conversion approach using a mid-infrared pump source. We used a 3.3 {\mu}m dual-chirped optical parametric amplification source and a 1.5
Externí odkaz:
http://arxiv.org/abs/2102.08631
Publikováno v:
Review of Scientific Instruments 92, 063001 (2021)
In our recent study [Commun. Phys. 3, 92 (2020)], we have developed an approach for energy-scaling of high-order harmonic generation in water-window region under neutral-medium condition. More specifically, we obtained nanojoule-class water-window so
Externí odkaz:
http://arxiv.org/abs/2012.15017
Autor:
Fu, Yuxi, Nishimura, Kotaro, Shao, Renzhi, Suda, Akira, Midorikawa, Katsumi, Lan, Pengfei, Takahashi, Eiji J.
Publikováno v:
Commun Phys 3, 92 (2020)
Full coherent soft X-ray attosecond pulses are now available through high-order harmonic generation (HHG); however, its insufficient output energy hinders various applications, such as attosecond-scale soft X-ray nonlinear experiments, the seeding of
Externí odkaz:
http://arxiv.org/abs/2003.06755