雜 誌
生活
- 交一個情義的宋朝朋友---邵雍
[皇極經世]
- 改變歷史的經濟學家(The Worldly(俗世 ) Philosophers) Robert
L.Heilbroner(1919-2005) [ResearchGate]
社會主義者 [巫和懋
Wu Ho-Mou]
數學
- 對稱與不對稱
- In GR,the word symmetry is associated to that of isometry,that is
a spacetime diffeomorphism that leaves the metric invariant.
A
one-parameter
continuous isometry is linked to the existence of Killing vectors. On
other side,... [hidden
symmetries by Marco
Cariglia]
- Apollonius
of Perga(262-190BC)---Tangencies(how to construct a circle taht's tangent
to any three others.
- Langlands program ---(1) 數字與方程式的對稱性
(2)modular
forms : infinite symmetries monster
group Don
Zagier
- 數論中發現的電磁場的迴響the
connection between periods and L-functions [Akshay
Venkatesh][ResearchGate]
[Yiannis Sakellaridis][Beyond
Endoscopy]
- Alan Guth:
theory of cosmic inflation What about Killing vector fields
?
- 計算Christoffel symbols是一件考驗耐心的事 對metric作Euler equation
求geodesic 再比較geodesic equation 是一個好辦法 看3-phere
- the connection is torsion free compatible with the metric g
X is a Killing vector X is the tangent vector field of a geodesic
- 3-sphere的Riemann tensor,Ricci tensor,Ricci scalar搞定,但是Cartan
structure equation仍無解
- A drop of Water refracting Light V.I.Arnold Mathematical
Understanding of Nature
- Rene Descartes (1596-1650) Gottfried Leibniz (1646-1716) Leonhard
Euler (1707-1783)
笛卡兒的秘密手記---笛卡兒發現了Euler公式 V-E+F=2 嗎 ? [How Euler do
it] 2004/6,7 [顛覆對宇宙的認知]
物理
- 在尋找chaotic wave時 找到[chaotic string motion in a near pp-wave
limit] pp-wave 是string theory的東西 plane-fronted waves with parallel
propagation的縮寫
pp-wave spacetimes in general relativity are an important
family of exact solution of Einstein field equation
- 諾貝爾物理獎 探索時間的微小一瞥(tiny
glimpses of time---attosecond 十億分之一秒)雷射脈衝( laser puslses)
- 九章三號量子電腦
- 量子糾纏與量子相變
- Airbus與BMW發起全球量子計算挑戰賽:The Quantum Mobility Quest. 量子運算是未來科技的主流
- 一封來自計算物理雜誌的信 [WENO]
來無影去無蹤
- 物理學家利用量子力學從無到有中提取能量
Masahiro
Hotta(堀田正宏)
- 一種新的對稱性震撼了物理學