# Path integral formulation

This formulation has proved crucial to the subsequent development of theoretical physics, because it is manifestly symmetric between time and space.

Quantum field theory

The path integral formulation was very important for the development of quantum field theory. Both the Schrodinger and Heisenberg approaches to quantum mechanics single out time, and are not in the spirit of relativity.

— Wikipedia on Path integral formulation

2010.01.23 Saturday ACHK

# 地球 2

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When we remember we are all mad, the mysteries disappear and life stands explained.

— Mark Twain

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— Me@2010.01.22

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2010.01.23 Saturday $copyright ACHK$