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## Main Question or Discussion Point

I know that The path Integral becames classical Lagrange (Classic Mechanics) how can it be turn it.

- Thread starter Quarlep
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I know that The path Integral becames classical Lagrange (Classic Mechanics) how can it be turn it.

- #2

atyy

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The classical solution is the saddle point approximation to the path integral.

http://www.nyu.edu/classes/tuckerman/stat.mechII/lectures/lecture_13/node2.html

http://www-thphys.physics.ox.ac.uk/people/FabianEssler/C6web2012/theory/quantumpath.pdf

http://www.nyu.edu/classes/tuckerman/stat.mechII/lectures/lecture_13/node2.html

http://www-thphys.physics.ox.ac.uk/people/FabianEssler/C6web2012/theory/quantumpath.pdf

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I dont have enough math to understand it

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atyy

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We associate a number with every possible path.

In classical mechanics, there is only one correct path.

In quantum mechanics, there is no single correct path, and we sum over all paths. The classical path is the path with the largest contribution to the sum.

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