Zobrazeno 1 - 10
of 15 496
pro vyhledávání: '"Hu, Xiao-An"'
Primordial black holes (PBHs) are hypothetical objects formed at the early epoch of the universe, which could be a type of dark matter (DM) candidate without the need for new particles. The abundance of PBH DM has been constrained strictly by many ob
Externí odkaz:
http://arxiv.org/abs/2408.14353
Fast, collimated jets are ubiquitous features of young stellar objects (YSOs). They are generally thought to be powered by disk accretion, but the details are debated. Through 2D (axisymmetric) MHD simulations, we find that a fast ($>100$~km/s) colli
Externí odkaz:
http://arxiv.org/abs/2408.10938
Autor:
Zhang, Chao, Li, Yi, Hu, Xiao-Min, Xiang, Yu, Li, Chuan-Feng, Guo, Guang-Can, Tura, Jordi, Gong, Qihuang, He, Qiongyi, Liu, Bi-Heng
Device-independent randomness certification based on Bell nonlocality does not require any assumptions about the devices and therefore provides adequate security. Great effort has been made to demonstrate that nonlocality is necessary for generating
Externí odkaz:
http://arxiv.org/abs/2408.04566
Publikováno v:
Eur. Phys. J. C 84, 723 (2024)
Dark photon is a new gauge boson beyond the Standard Model as a kind of dark matter (DM) candidate. Dark photon dark matter (DPDM) interacts with electromagnetic fields via kinetic mixing, implicating an approach to give a constraint with extragalact
Externí odkaz:
http://arxiv.org/abs/2407.16628
Autor:
Hu, Xiao, Shen, Guozhen
A function is boundedly finite-to-one if there is a natural number $k$ such that each point has at most $k$ inverse images. In this paper, we prove in $\mathsf{ZF}$ (without the axiom of choice) several results concerning this notion, among which are
Externí odkaz:
http://arxiv.org/abs/2407.10183
Rings and gaps are routinely observed in the dust continuum emission of protoplanetary discs (PPDs). How they form and evolve remains debated. Previous studies have demonstrated the possibility of spontaneous gas rings and gaps formation in wind-laun
Externí odkaz:
http://arxiv.org/abs/2407.08032
Job recommender systems are crucial for aligning job opportunities with job-seekers in online job-seeking. However, users tend to adjust their job preferences to secure employment opportunities continually, which limits the performance of job recomme
Externí odkaz:
http://arxiv.org/abs/2407.00082
Autor:
Hu, Xiao, Wu, Yan, Frontzek, Matthias D., Hu, Zhixiang, Petrovic, Cedomir, Tranquada, John M., Zaliznyak, Igor A.
We report neutron diffraction measurements of Ca$_{0.6}$Sr$_{0.4}$MnSb$_2$, a low-carrier-density Dirac semimetal in which the antiferromagnetic Mn layers are interleaved with Sb layers that host Dirac fermions. We have discovered that we can detect
Externí odkaz:
http://arxiv.org/abs/2406.10340
Electronic Health Records (EHRs) contain rich patient information and are crucial for clinical research and practice. In recent years, deep learning models have been applied to EHRs, but they often rely on massive features, which may not be readily a
Externí odkaz:
http://arxiv.org/abs/2406.05682
Autor:
Hu, Xiao
The classic Yannakakis framework proposed in 1981 is still the state-of-the-art approach for tackling acyclic join-aggregate queries defined over commutative semi-rings. It has been shown that the time complexity of the Yannakakis framework is $O(N +
Externí odkaz:
http://arxiv.org/abs/2406.05536