# Electron

In condensed matter physics, the spin–charge separation is an unusual behavior of electrons in some materials under some special conditions that allows the electrons to behave as a bound state of two independent particles, the spinon and the holon.

— Wikipedia on Spin–charge separation

2009.10.31 Saturday ACHK

# Someone

Something 2

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You might know someone but not understand her.

You might understand someone but not feel as she does.

— Me@2009.10.28

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2009.10.31 Saturday $copyright ACHK$

# R5

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— Me@2009.09.21

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2009.10.28 Wednesday $copyright ACHK$

# Imaginary Time

Finally by using a Wick rotation one can show that the Euclidean quantum field theory in (D + 1)-dimensional spacetime is nothing but quantum statistical mechanics in D-dimensional space.

— Wikipedia on Imaginary Time

2009.10.27 Tuesday (c) ACHK

# 2010

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2009.10.27 Monday $copyright ACHK$

# Public exams

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Life is a never-ending series of public exams.

— Me@2009.10.24

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2009.10.26 Monday $copyright ACHK$

# Computational Physics

Computational Physics does not mean “numerical”!

— Prof. Hai-Qing Lin

2009.10.24 Friday (c) ACHK

# Beauty 5

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A confident face is a beautiful face.

— Me@2009.10.05

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2009.10.24 Saturday $copyright ACHK$

# 超常領域

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Extraordinary performance requires extraordinary confidence, extraordinary diligence and extraordinary laziness.

— Me@2009.10.20

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2009.10.23 Friday $copyright ACHK$

# Major and Minor 2

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$Diligent + Lazy = Effective$

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Major in major things + Minor in minor things = Effecive

Major in major things + Major in minor things = Ineffective

Minor in major things + Minor in minor things = Useless

Minor in major things + Major in minor things = Destructive

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— Me@2009.10.14

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2009.10.22 Thursday $copyright ACHK$

# Nightmare 5

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— Me@2009.10.20

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2009.10.21 Wednesday $copyright ACHK$

# 放手

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— Mr Lee

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2009.10.20 Tuesday $ACHK$

# 香港

Hong Kong’s Republic of China

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(明報)2009年10月17日

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2009.10.19 Monday $ACHK$

# S-matrix

In physics, the scattering matrix (or S-matrix) relates the initial state and the final state for an interaction of particles.

— Wikipedia on S-matrix

2009.10.18 Sunday (c) ACHK

# 天人

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$Pure~Physics = Applied~Physics$

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Physics 連接天界與人間.

— Me@2009.10.17

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.2009.10.18 Sunday $copyright ACHK$

# Something

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You might know something but not understand it.

You might understand something but not feel it.

— Me@2009.10.05

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2009.10.17 Saturday $copyright ACHK$

# Stand-up comedy

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* Teaching is Like Acting – you’re standing up there on stage making us watch you: you’d better be worth it. The closest professions to teaching are stage acting and stand-up comedy. Learn how they do it.

— John Baez, January 23, 2006

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2009.10.16 Friday $ACHK$

# Major and Minor

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$Diligent + Lazy = Effective$

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Diligent on the relevant things + Lazy on the irrelevent things = Effecive

Diligent on the relevant things + Diligent on the irrelevent things = Ineffective

Lazy on the relevant things + Lazy on the irrelevent things = Useless

Diligent on the irrelevant things + Lazy on the relevent things = Destructive

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— Me@2009.10.14

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2009.10.15 Thursday $copyright ACHK$