Frontiers of Physics

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The vortex-like excitations detected by Nernst signals in high-T c superconductors
Frontiers of Physics - Tập 1 Số 3 - Trang 344-350 - 2006
Jingqin Shen, Zhu-An Xu, Zengwei Zhu
Superconductivity and superfluidity as universal emergent phenomena
Frontiers of Physics - Tập 10 - Trang 1-6 - 2015
Mike Guidry, Yang Sun
Superconductivity (SC) or superfluidity (SF) is observed across a remarkably broad range of fermionic systems: in BCS, cuprate, iron-based, organic, and heavy-fermion superconductors, and in superfluid helium-3 in condensed matter; in a variety of SC/SF phenomena in low-energy nuclear physics; in ultracold, trapped atomic gases; and in various exotic possibilities in neutron stars. The range of ph...... hiện toàn bộ
Correlation, superconductivity and topology in graphene moiré superlattice
Frontiers of Physics - Tập 18 - Trang 1-9 - 2023
Lingxiao Li, Min Wu, Xiaobo Lu
Moiré superlattices created by stacking different pieces of two-dimensional layered materials with a slight lattice mismatch have recently emerged as an exceptional platform for exploring emergent quantum phenomena. In stark contrast to the “parent” materials, the electronic band structures are significantly modified from moiré engineering due to the large-scale periodic moiré potential and interl...... hiện toàn bộ
High-order exceptional points in non-Hermitian Moiré lattices
Frontiers of Physics - - 2019
Yanrong Zhang, Ze-Zheng Zhang, Jiaqi Yuan, Ming Kang, Jing Chen
Metal absorptivity in femtosecond pulsed laser ablation
Frontiers of Physics - Tập 2 - Trang 322-326 - 2007
Li Li, Duan-ming Zhang, Zhi-hua Li, Xin-yu Tan, Ran-ran Fang
In this paper, the effect of the absorptivity of metal on femtosecond pulsed laser ablation is investigated. The formulas for the absorptivity depending on target temperature are derived from Maxwell Equations and the Lambert-Beer’s law. Based on this, a new two-temperature model is proposed to describe the femtosecond pulsed laser ablation with metal. Then, using Au as an example, a finite differ...... hiện toàn bộ
Vận chuyển năng lượng được hỗ trợ bởi giao diện trong các chuỗi Frenkel–Kontorova liên kết Dịch bởi AI
Frontiers of Physics - Tập 11 - Trang 1-6 - 2016
Rui-Xia Su, Zong-Qiang Yuan, Jun Wang, Zhi-Gang Zheng
Vai trò của các liên kết giao diện trong việc vận chuyển năng lượng của hai chuỗi Frenkel–Kontorova (FK) liên kết được khám phá thông qua các mô phỏng số. Nói chung, người ta kỳ vọng rằng các liên kết giao diện sẽ dẫn đến sự ức chế dẫn nhiệt qua hệ thống liên kết do sự tán xạ phonon–phonon giao diện bổ sung. Trong bài báo này, chúng tôi phát hiện ra rằng độ dẫn nhiệt tăng lên với cường độ tương tá...... hiện toàn bộ
#Frenkel–Kontorova; dẫn nhiệt; tương tác giao diện; tán xạ phonon
Stacking transition in rhombohedral graphite
Frontiers of Physics - Tập 14 - Trang 1-7 - 2018
Tataiana Latychevskaia, Seok-Kyun Son, Yaping Yang, Dale Chancellor, Michael Brown, Servet Ozdemir, Ivan Madan, Gabriele Berruto, Fabrizio Carbone, Artem Mishchenko, Kostya S. Novoselov
Few-layer graphene (FLG) has recently been intensively investigated for its variable electronic properties, which are defined by a local atomic arrangement. While the most natural arrangement of layers in FLG is ABA (Bernal) stacking, a metastable ABC (rhombohedral) stacking, characterized by a relatively high-energy barrier, can also occur. When both types of stacking occur in one FLG device, the...... hiện toàn bộ
Quantum droplets in two-dimensional optical lattices
Frontiers of Physics - Tập 16 - Trang 1-10 - 2020
Yi-Yin Zheng, Shan-Tong Chen, Zhi-Peng Huang, Shi-Xuan Dai, Bin Liu, Yong-Yao Li, Shu-Rong Wang
We study the stability of zero-vorticity and vortex lattice quantum droplets (LQDs), which are described by a two-dimensional (2D) Gross–Pitaevskii (GP) equation with a periodic potential and Lee–Huang–Yang (LHY) term. The LQDs are divided in two types: onsite-centered and offsite-centered LQDs, the centers of which are located at the minimum and the maximum of the potential, respectively. The sta...... hiện toàn bộ
Concurrence vectors for entanglement of high-dimensional systems
Frontiers of Physics - Tập 3 - Trang 250-257 - 2008
You-Quan Li, Guo-Qiang Zhu
The concurrence vectors are proposed by employing the fundamental representation of A n Lie algebra, which provides a clear criterion to evaluate the entanglement of bipartite systems of arbitrary dimension. Accordingly, a state is separable if the norm of its concurrence vector vanishes. The state vectors related to SU(3) states and SO(3) states are discussed in detail. Th...... hiện toàn bộ
Resonant four-photon photoemission from SnSe2(001)
Frontiers of Physics - Tập 19 - Trang 1-10 - 2023
Chengxiang Jiao, Kai Huang, Hongli Guo, Xingxia Cui, Qing Yuan, Cancan Lou, Guangqiang Mei, Chunlong Wu, Nan Xu, Limin Cao, Min Feng
High-order nonlinear multiphoton absorption is usually inefficient, but can be enhanced by designing resonant excitations between occupied and unoccupied energy levels. We conducted angle-resolved multi-photon photoemission (mPPE) studies on the SnSe2(001) surfaces excited by ultrashort laser pulses. By tuning photon energy and light polarization, we demonstrate the presence of a resonant four-pho...... hiện toàn bộ
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