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197 papers · 1 filter
A Proof of the Explicit Minimal-basis Expansion of Tree Amplitudes in Gauge Field Theory
Yi-Xin Chen, Yi-Jian Du, Bo Feng
In last couple years, an important relation (BCJ relation) between color-ordered tree-level scattering amplitudes of gauge theory has inspired many studies. This relation implies t…
Hawking temperature for constant curvature black bole and its analogue in de Sitter space
Rong-Gen Cai, Yun Soo Myung
The constant curvature (CC) black holes are higher dimensional generalizations of BTZ black holes. It is known that these black holes have the unusual topology of ${\cal M}_{D-1}\t…
Electronic and magnetic structures of ternary iron selenides AFeSe (A=K, Cs, or Tl)
Xun-Wang Yan, Miao Gao, Zhong-Yi LU +1
By the first-principles electronic structure calculations, we find that the ground state of ternary iron selenides AFeSe (A=K, Cs, or Tl) is in a bi-collinear antiferromagn…
Screw-pitch effect and velocity oscillation of domain-wall in ferromagnetic nanowire driven by spin-polarized current
Zai-Dong Li, Qiu-Yan Li, X. R. Wang +3
We investigate the dynamics of domain wall in ferromagnetic nanowire with spin-transfer torque. The critical current condition is obtained analytically. Below the critical current,…
Domain-wall solutions of spinor Bose-Einstein condensates in an optical lattice
Zai-Dong Li, Qiu-Yan Li, Peng-Bin He +3
We studied the static and dynamic domain wall solutions of spinor Bose-Einstein condensates trapped in an optical lattice. The single and double domain wall solutions are construct…
Notes on Ghost Dark Energy
Rong-Gen Cai, Qiping Su, Zhong-Liang Tuo +1
We study a phenomenological dark energy model which is rooted in the Veneziano ghost of QCD. In this dark energy model, the energy density of dark energy is proportional to Hubble…