Matrix string theory 2

In physics, M(atrix) theory (also known as BFSS-Matrix theory) is a fundamental formulation of M-theory as a Random matrix model. It is written in terms of interacting D0-branes (zero-dimensional Dirichlet branes) in infinite momentum frame. It was proposed by Banks, Fischler, Shenker, and Susskind in 1996. See also the discussion in M-theory.

Matrix String Theory

Matrix string theory is a set of equations that describe superstring theory in a non-perturbative framework. Matrix string theory is related to M(atrix) theory in the same sense that superstring theory is related to M-theory. Type IIA string theory can be shown to be equivalent to a maximally supersymmetric two-dimensional gauge theory, the gauge group of which is U(N) for a large value of N. This Matrix string theory was first proposed by Lubos Motl in 1997 and later independently in a more complete paper by Robbert Dijkgraaf, Erik Verlinde, and Herman Verlinde. Another matrix string theory equivalent to Type IIB string theory was constructed in 1996 by Ishibashi, Kawai, Kitazawa and Tsuchiya. This version is known as the IKKT matrix model.

— Wikipedia on Matrix string theory

2010.07.23 Friday ACHK

Dog 2

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Intellect is invisible to the man who has none.

— Arthur Schopenhauer

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Kindness is invisible to the man who has none.

— Me@2010.07.22

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If you pick up a starving dog and make him prosperous, he will not bite you. This is the principal difference between a dog and a man.

— Mark Twain

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2010.07.23 Friday copyright ACHK

梅花間竹

這段改篇自 2010 年 3 月 18 日的對話。

假設,你有兩樣重要的事情要做:A 和 B。

如果 A 和 B 各自本身都需要長時間的話,那你就千萬不要企圖先百分百完成其中一件事,才開始做另一件事,因為通常第一件事會做極也做不完,導致第二件事遲遲不能開始。即使第二件事可以開始,也只剩下極少的時間,令到你只能草草了事。

那你應該怎樣編排時間呢?

你可以試試用「梅花間竹」方法,把事情 A 和事情 B 不斷循環:

1 hour Task A
1 hour Task B
1 hour Task A
1 hour Task B
1 hour Task A
1 hour Task B

視乎實際處境,根據上文下理,一格時間可以是 30 分鐘、1 小時、1 天 或 3 個月 等等,沒有一定的限制。

「梅花間竹」有什麼好處呢?

— Me@2010.07.22

2010.07.23 Friday (c) All rights reserved by ACHK