主题：从狭义相对论公式看当物体超光速的时候，是否是会时光倒流？ -- 思想的行者

"通过量子纠缠进行通信" is not about 超光速, it is about "量子纠缠" part.

"量子即时（我理解您所谓的即时就是瞬时，至少可以超过真空中的光速）通信,超光速通信" is not what 量子通信 about, not at all. period.

still, this kind of discussions are very important in terms of learning about the related physics/math models behind it.

1.

as said before, the critical part of "通过量子纠缠进行通信" is (roughly speaking)

between alice and Bob, they can all 对自己的qutrit进行相应的么正变换, that part is known only between alice and bob;

2.

still, Alice has to 通过经典通道把测量结果告知bob, or she did some kind of 么正变换, to the "EPR thing", and bob could calculate what kind of 么正变换 alice did;

but there is no other transmission except for 经典通道, for Alice to tell Bob: I did something, done my part of the game, now it is your turn.

and that "game(and how alice and bob play the game)" is only known between alice and bob, there is no way for other people like Uncle sam to figure out what the hell is going on between the two 中共地下党员 of alice & bob(:).

"经典通道" transmission 不可能超光速, but it would not impact the 地下党 part of the game.

however, without "经典通道" transmission part, Bob can never complete his part of the game.

in that sense, 量子通信不可能超光速, period.

3.

obviously, "经典通道" transmission is not tricky at all, what is tricky ( in terms of how to do it in the macroscopic environment) is the making o f "量子纠缠" etc.

4.

still, 么正变换 is a super powerful concept in quantum physics, and in classical physics, we do have 正则变换, and I have posted before, folks need to learn 哈密顿力学/理论力学 first before learning QM/SR/GR, period.

5

even "通过量子纠缠进行通信" is and will be a technology challenge for long long time, the information processing theory behind it is already widely applied in many areas, such as 并行通信 brain model etc, as posted before.

in that sense, the fundamental concepts and the related modeling (logic and math language) are super important, regardless of what you actually do, in today's informational economy and politics (to some degree), that is a key part of "CORE algo" of the emerging global information and AI system.

and I have posted quite bit about the possible "apps" ideas in that sense.

otherwise, as an individual or as a nation, "文盲" of modern informational & AI version of 達爾文遊戲 will be cheated by those 氣功大師.

largely because of GFW and other political issues, TGchina is facing huge challenges in those area, but as an individual, that is not an excuse to fall behind.

period.

so, study English and physics, a must, if one is still capable of leaning.

although learning QM is hard (and learning without doing some lab work is even harder), for anybody.

nothing is easy, kind of why Chinese elite almost all support TG, 氣功大師 plays political game while making tons of money with it, in china mainland with 1.3 billion workers 听党的话跟党走 , what a beautiful life(:).

but nothing is free, somebody has to pay for that beautiful life of today's Chinese social elite. but who cares(:), let the suckers suck(:).damned.

6.

"量子即时（我理解您所谓的即时就是瞬时，至少可以超过真空中的光速）通信,超光速通信" is right in the sense of social physics: that "elite 通信 among elite themselves)" is 超光速通信, since "文盲" folks will be bypassed anyway, anywhere, US or china, china kind of the worse (but better than 印度?)

7.

obviously, humanity as a whole, 科学技术是第一生产力, and to progress in that direction, humanity need to narrow the gap between "文盲" folks and 氣功大師, particularly in social science area, with help of 科学技术 itself.

to do that, globalization of information & AI system 24/7 in all kinds of language is the way to go, kind of why GOOG/FB are spending huge amount of their money in doing that, and of course 夹带私活 for themselves in the process.

constrained and restrained by GFW, TGchina's model has fundamental problems with it: if nothing else, Chinese companies and Chinese people themselves, will be facing "文盲" issue, with 文盲" defined by uncle sam's global power, soft and hard, in the global information/logic/value/AI network or platform, dominated by GOOG/FB/AAPL/MSFT/TSLA etc, eventually hitting TGchina from 太空, etc.

meanwhile, TGchina's 中国特色社会主义 (regardless of its logic if there is any): if it cannot be globalized, it is a piece of BS, making sense?

and how do you globalize 中国特色社会主义: what is your logic model? any time frame? what is the risk?

and how many generations of Chinese people's life will be gambled with 中国特色社会主义 in china first, then globally?

and if nothing else, with GFW, how can you globalize 中国特色社会主义 as a culture/vaule/logic model to the outside world?

with GFW, chairman X ideology 军 will more than likely=内战内行, and very likely 内战 is his goal anyway.

I would think, this line of logic is fairly straight forward, and many Chinese elite folks know about it too, but, hey, for now, good & easy money and good life, and all you need to do is to smile with uncle TG together, then why not(:)?

remember:

热力学第零定律- 维基百科，自由的百科全书

zh.wikipedia.org/zh-hk/热力学第零定律

第零定律是由英國物理學家福勒(R.H.Fowler)於1930年正式提出，比热力学第一定律和热力学第二定律晚了80餘年，但是第零定律是后面几个定律的基础，所以叫做 ...

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