若整個宇宙熵數下降則等同時光倒流?

2018-12-26 5:34 pm

回答 (3)

2018-12-26 7:41 pm
✔ 最佳答案
若是由反物質組成的、與我們的宇宙相對映的反空間(反宇宙)、時間的流動與我們的時間相反(反時間)、在巨觀上來看:熵數下降、正是時光倒流!在我們這個宇宙則不會發生這樣的情形.
2018-12-26 7:20 pm
可惜,唔會
算了 講多少少:(如果看得明的話??)
首先,先講一下, there is an equivalence(or some kind of symmetry) between the notion of
entropy ---------------> Bits of Unknown information via
energy----------------> mass
(如果看得明的話, such equivalence is actually an isomorphism )
as describe in Physics in various fields,
基本上熵唔會減少是先base on數學上的一個Theorem:
Liouville's Thm.
which states( in symplectic famework ) that
the symplectic volume form of the phase space is invariants under Hamiltonian diffeomorphism/flows.
[[ Roughly speaking, the information preserve under time evolution ]]
然後,因為當我們要獲得訊息時,我們要以比該訊息更大的訊息來作測量,換句話說我們到頭來不知道的訊息整會增加,(好像是這樣)
2018-12-27 1:34 pm
是, 但會不會發生呢?


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