Science China Physics, Mechanics & Astronomy

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Universal quantum circuit of near-trivial transformations
Science China Physics, Mechanics & Astronomy - Tập 54 - Trang 1819-1827 - 2011
Min Liang, Li Yang
Any unitary transformation can be decomposed into a product of a group of near-trivial transformations. We investigate in detail the construction of universal quantum circuit of near trivial transformations. We first construct two universal quantum circuits which can implement any single-qubit rotation R y (θ) and R ...... hiện toàn bộ
Evolution of the vortex structures and turbulent spots at the late-stage of transitional boundary layers
Science China Physics, Mechanics & Astronomy - Tập 54 - Trang 986-990 - 2011
Lin Chen, DengBin Tang, Ping Lu, ChaoQun Liu
The nonlinear evolution process of new vortex structures at the late-stage of the transition, including the 3-D spatial structure of barrel-shaped vortex and “dark spots”structure observed by experiment research, has been confirmed by our computational results. The formation mechanisms of these structures have been explored. It is revealed that the new vortex structures, the ring-like vortex chain...... hiện toàn bộ
A data-efficient self-supervised deep learning model for design and characterization of nanophotonic structures
Science China Physics, Mechanics & Astronomy - Tập 63 - Trang 1-8 - 2020
Wei Ma, Yongmin Liu
With its tremendous success in many machine learning and pattern recognition tasks, deep learning, as one type of data-driven models, has also led to many breakthroughs in other disciplines including physics, chemistry and material science. Nevertheless, the supremacy of deep learning over conventional optimization approaches heavily depends on the huge amount of data collected in advance to train...... hiện toàn bộ
Nghiên cứu lý thuyết về động lực học bọt dưới điều kiện biên hỗn hợp và nhiều bọt sử dụng phương trình thống nhất Dịch bởi AI
Science China Physics, Mechanics & Astronomy - Tập 66 - Trang 1-16 - 2023
A-Man Zhang, Shi-Min Li, Pu Cui, Shuai Li, Yun-Long Liu
Bài báo này nhằm mục đích sử dụng phương trình động lực học bọt thống nhất để nghiên cứu hành vi của bọt trong các kịch bản phức tạp liên quan đến biên bề mặt tự do/hàn và sự tương tác giữa nhiều bọt. Tác động của sự di chuyển của điểm kỳ dị lên dạng của phương trình thống nhất được phân tích sau khi suy diễn phương trình dao động bọt bằng cách sử dụng nguồn điểm chuyển động và một cặp cực, tiếp t...... hiện toàn bộ
#động lực học bọt #phương trình thống nhất #biên hỗn hợp #tương tác bọt đa chiều #áp suất cụm bọt #
The Chang’E-1 orbiter plays a distinctive role in China’s first successful selenodetic lunar mission
Science China Physics, Mechanics & Astronomy - Tập 54 - Trang 2130-2144 - 2011
JinSong Ping, XiaoLi Su, Qian Huang, JianGuo Yan
The first Chinese lunar orbiter Chang’E-1 is a successful mission with many fruitful results obtained in various disciplines. The scientific data acquired by the Chang’E-1 payloads can benefit studies of the lunar origin and evolution, as well as other relevant research areas, after careful validation of the data. Among the new results, the Chang’E-1 selenodetic products are continually uncovering...... hiện toàn bộ
Hexagonal warping effect on Majorana zero modes at the ends of superconducting vortex lines in doped strong 3D topological insulators
Science China Physics, Mechanics & Astronomy - Tập 62 - Trang 1-10 - 2019
Chuang Li, Lun-Hui Hu, Fu-Chun Zhang
In a superconducting topological insulator, a superconducting vortex line can trap a one-dimensional topological band with localized Majorana zero modes at the ends. Here, we study the effect of hexagonal warping and its corresponding symmetry-breaking effect on vortex phase transition. We perform both analytical calculations based on a semiclassical formula and numerical calculations based on ful...... hiện toàn bộ
Effect of solidification temperature range on the dendritic growth mode
Science China Physics, Mechanics & Astronomy - Tập 54 - Trang 89-94 - 2010
ChongDe Cao, Fang Wang, LiBing Duan, XiaoJun Bai
Electromagnetic levitation technique was used to undercool bulk samples of Co-20% Cu and Co-60% Cu alloys and high undercoolings up to 303 and 110 K were achieved, respectively. The dendritic growth velocities were measured as a function of undercooling. The dendrite growth velocity of the Co-20% Cu alloy was much higher than that of the Co-60% Cu alloy. The experimental data were analyzed on the ...... hiện toàn bộ
Correlation between boson peak and thermal expansion manifested by physical aging and high pressure
Science China Physics, Mechanics & Astronomy - Tập 65 - Trang 1-6 - 2022
Rongjie Xue, Linzhi Zhao, Yunqi Cai, Jiaojiao Yi, Jinguang Cheng, Ping Wen, Weihua Wang, Mingxiang Pan, Haiyang Bai
We investigate the effects of high pressure and physical aging on the boson peak and thermal expansion of a typical metallic glass. Specifically, the thermal expansion coefficient and boson peak intensity monotonically decrease during physical aging. With the increase of high pressure, the boson peak intensity and the thermal expansion coefficient coincidently experience an incipient decrease and ...... hiện toàn bộ
Hunting for the dark sector by searching for dark photons with the newly proposed DarkSHINE experiment
Science China Physics, Mechanics & Astronomy - Tập 66 - Trang 1-1 - 2022
Yipeng Jing
Kinetic energy and radial momentum distribution of hydrogen and oxygen atoms of water confined in silica hydrogel in the temperature interval 170–325 K
Science China Physics, Mechanics & Astronomy - Tập 62 - Trang 1-4 - 2019
Vincenzo De Michele, Giovanni Romanelli, Antonio Cupane
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