What is information in terms of physics?
Good day, humans!
In case of any misunderstandings / misunderstandings, please consider this post as a purely Friday flame. Immediately clarify that in this post there is no answer to the question. I myself am looking for it - search engines do not help - and here I am only voicing the question itself. I hope for the help of the hall.
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Are there any studies / theories / hypotheses / whatever on what the information is from the point of view of fundamental physics? From a mathematical point of view, everything is clear - there are bits, their combinations, algorithms for storing and changing these bits, etc. - in fact, the whole IT-sphere is doing just that.
But is physics considering the notion of “information” from any point of view?
To synchronize the understanding, I will clarify what I mean by the word “information” as “data”, “meaning”, and not just as a set of bits.
From the point of view of physics - information about the "information" is extremely small, sorry for the pun.
From what can be found - there is some connection between information and entropy (the more information - the less entropy and vice versa). But even this connection is purely quantitative and knows nothing about the “composition” of information.
There is also the Hawking paradox , which is precisely what says about the disappearance of “information” in black holes.
It would be very interesting to find any thoughts on the topic of communication of information and fundamental physics. Now in my head "information" is a kind of abstract concept. Is it really only abstract, or is there some kind of physical basis?
Talking about information as a state of a physical system is also not entirely true — the same information can be stored in completely different physical systems and correspond to completely different states.
For example, a simple text: "Hello, World!" . It can be written on paper, can be memorized, pronounced, stored on a hard disk, on a CD, on an SSD, can be engraved anywhere, etc. etc. All this is completely different physical systems in completely different states. However, the information itself remains unchanged.
So what is “information” in terms of physics?
In case of any misunderstandings / misunderstandings, please consider this post as a purely Friday flame. Immediately clarify that in this post there is no answer to the question. I myself am looking for it - search engines do not help - and here I am only voicing the question itself. I hope for the help of the hall.
')
Are there any studies / theories / hypotheses / whatever on what the information is from the point of view of fundamental physics? From a mathematical point of view, everything is clear - there are bits, their combinations, algorithms for storing and changing these bits, etc. - in fact, the whole IT-sphere is doing just that.
But is physics considering the notion of “information” from any point of view?
To synchronize the understanding, I will clarify what I mean by the word “information” as “data”, “meaning”, and not just as a set of bits.
From the point of view of physics - information about the "information" is extremely small, sorry for the pun.
From what can be found - there is some connection between information and entropy (the more information - the less entropy and vice versa). But even this connection is purely quantitative and knows nothing about the “composition” of information.
There is also the Hawking paradox , which is precisely what says about the disappearance of “information” in black holes.
It would be very interesting to find any thoughts on the topic of communication of information and fundamental physics. Now in my head "information" is a kind of abstract concept. Is it really only abstract, or is there some kind of physical basis?
Talking about information as a state of a physical system is also not entirely true — the same information can be stored in completely different physical systems and correspond to completely different states.
For example, a simple text: "Hello, World!" . It can be written on paper, can be memorized, pronounced, stored on a hard disk, on a CD, on an SSD, can be engraved anywhere, etc. etc. All this is completely different physical systems in completely different states. However, the information itself remains unchanged.
So what is “information” in terms of physics?
Source: https://habr.com/ru/post/398377/
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