w****1
发帖数: 4931 | 1 Sorry I'm using a mac. It's kind of pain in the ass to type Chinese. I'll do
it next time. |
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b*******t
发帖数: 417 | 2 MAC好像也有个中文输入，就是没有SOGOU拼音那么好使
do |
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s*******n
发帖数: 1474 | 4 这个版上能让人shut up的只有斑竹或站务
莫非你是在自荐？
you |
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c****e
发帖数: 2097 | 5 我看你智伤咋就这低
能墙壁你的当然是斑竹，用道理让人闭嘴是随便谁都可以。
不闭嘴徒然聒噪象只苍蝇。好比大街上，没人愿意看起来象白痴，所以没有成年人还咿
咿呀呀。
物理学难道就是教育些学生出来对不懂的科目也要指手画脚？虽说受过训练，这种行为
跟民科是50步笑摆布。 |
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x********g
发帖数: 595 | 7 "不知道学到什么水平算是被教育过得了"
Trust me, you will never know. |
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x********g
发帖数: 595 | 8 I would shut up if someone who knows the field much better than me pointed
out my ignorance.
When you don't know who you're talking to, you're liable to say something
you'll regret. |
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C********n
发帖数: 6682 | 10 if u call that black hole in fermi lab or extra dimension on lhc or
landscape crap
physics,
yes, they r doing 'physics'
not physics in our space time though.
if u can, from the basic principle of string, w/o much assumptions, build
Standard model with correct particle mass and coupling constants. yes. u
can
call your work physics
otherwise, it is nothing but crap
there is already too much crap in the physics society, and stringers are
trying
to create more
E. witten is doing physics, cus he alre |
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w****1
发帖数: 4931 | 11 The more you write the more you sound like an idiot. Let me tell you once
again, ignorance is not an opinion. This is the last time I'm going to waste
my time replying to your post. |
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j*********t
发帖数: 217 | 12 不懂装懂，人云亦云，唉……
无知真可怕，不知道自己无知更可怕 |
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N***m
发帖数: 4460 | 13 超弦增加了就业，增加了GDP，有什么不好？
据说还要拍一部电视剧string theory |
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s*******n
发帖数: 1474 | 14 呵呵，我看你丫就是睚眦必报
我老说你几句显摆鸟语，你就跟我干上了
你这几句怎么不用鸟语啊？
能用道理让人闭嘴的这版上还真没几个，你以为
你玩点高深的就能教育人啦？我看你就是高智商
低情商，轮不到你说教的地方也出来放p |
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s*******n
发帖数: 1474 | 15 我得表个立场
我其实很佩服作string的，也认为string是物理
不过你叫人闭嘴，别人也可以叫你闭嘴
因为bbs本不是说理的地方。
waste |
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o********o
发帖数: 10 | 16 说得还是有道理的。
不要学老杨当年，反对中国搞实验高能物理，对撞机什么的，
还让人混饭吃吗？结果很多人都不喜欢老杨。 |
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q*d
发帖数: 22178 | 17 那会没钱,确实不该上对撞机这样东西.
弦论其实花不了多少钱,要是只有少量的钱,那不如投弦论. |
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s*******n
发帖数: 1474 | 18 那你也不能让一小撮人混饭吃，让一大撮人没饭吃啊 |
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s*******n
发帖数: 1474 | 19 现在string估计得上计算机了
当年纸笔，加上office就够了吧
话说witten说自己没写过任何code |
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a***e
发帖数: 27968 | 21 on a bbs to ask someone to shut up on something, you better show something,
say how many paper you pub on string theory?
you |
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o********o
发帖数: 10 | 24 有些可能性。老李和老杨的斗嘴过程中，实验高能的不少人都向着老李。
by the way, 在这里掐架的同学，感觉有些是德州工农兵大学的，
只不过在时空上没有交点，所以互不认识。 |
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q*d
发帖数: 22178 | 25 不是吧.
早在70年代的一次物理大会上,
当时应该是Yang-Mills场的重整化已经被证明,
标准模型已经确立,
大家都踌躇满志,
有人让台下的老杨的讲两句,
当着Weinberg,Glashaw,TD Lee等人,
老杨说:"The party is over."
就是说高能物理的盛世已经过去.
他后面一直是按这个看法行事的,
包括反对中国造加速器,
以及让投靠他的学生去做别的,
以及目前对国内某大学物理系发展方向的选择.
据说清华系主任拿着老杨的一封信当圣旨,
把搞高能理论的差点赶出物理系..
something, |
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s*******n
发帖数: 1474 | 27 要赶高能物理理论的，首先就得先赶老杨吧？
虽说人也不在乎 |
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b*******t
发帖数: 417 | 28 搞物理还是兼容并包好一点，大佬的话的也是一家之言 |
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c****e
发帖数: 2097 | 31 you're prone to underestimate others, which means you cannot handle real
real world considerations. maybe it's because of your frustration in failing
to understand more.
why assume just because someone can handle some fancy swancy math or some
deep results of very orthodox theoretical physics, they have to part with
their understandings of more elementary stuff which forms the basis on which
the former are built?
it isn't true that understanding string theory is in conflict with
understanding st |
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c****e
发帖数: 2097 | 32 对你个落水狗当然鸭子必剥。
你讲的屁话很多，居然管得别人说什么。你他妈是中宣部？老子我写什么语言要你批准？
我玩什么玩谁管你屁事。你这种人大脑里除了prototype什么都没有。 |
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c****e
发帖数: 2097 | 33 some crucial computations are not of the kind to be handled by coding. |
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k*********g
发帖数: 791 | 34 倪的英语很奇怪；
总体、很多地方，非常流畅；
却在2个地方犯了 那些 流畅的人靠语感一感就能感出别扭来 的 错误；
you |
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k*********g
发帖数: 791 | 35 what kind of crucial computation???
could you please cite some examples??
藕应该是这个世界上最懂computation的人啦；
说些例子；
看看藕能不能帮上倪们这些大物理学家； |
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w****1
发帖数: 4931 | 36 Is LHC going to discover strings at UV completion of GUT? Probably not. So
when will we ever discover strings?
The answer is we already have. Large N gauge theory is string theory. If you
didn't know about strings and
studied maximally supersymmetric gauge theories in four dimensions deep
enough you will be forced to
discover type IIB superstrings. It is the correct description of the physics
at large N. Is QCD a string theory?
Almost definitely yes, but we are not close to understanding exactly |
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c****e
发帖数: 2097 | 37 well, go read some papers by Martin Luscher, an ex-string theorist, you will
know what kind is involved.
It isn't that having the most expensive or powerful computer or computer
scientist will help solve any physics problem.
a set of numbers without order, hierarchy, structure isn't going to do much. |
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w****1
发帖数: 4931 | 38 This is too easy. How about deriving the temperature of Hawking radiation of
a Schwarzschild black hole,
computing the four fermion scattering amplitude in one-instanton background
in SU(2) gauge theory, or
computing the gauge and gravitational anomaly of ten-dimensional type I
supergravity coupled to a gauge
group G? I can easily list a hundred important computations in theoretical
physics that cannot be done with a
computer, or cannot be done with a computer before it's done by hand.:)
will
m |
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c****e
发帖数: 2097 | 39 i rather find what you listed easier, or rather squarely solved. or maybe that's a misconception.
but getting rid of fermion doubling on lattice appears not much easier than doing the computations you mentioned.
since the op was asking for computation problems in physics, i guess lattice
comes nearby. as for the rest of the subject, it's a given that computers
don't make breakthroughs.
in any case, a computer so far does not have any experience, or develop intuitions.
of
background |
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c*******3
发帖数: 21 | 40 Based on the history of HEP development in the past 30 years, Lao Yang is
damn right. |
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w****1
发帖数: 4931 | 41 I don't know anything about fermions on the lattice so I won't comment on
that. But I wouldn't say the 3
problems I listed are easy. They are neat, but they are not easy. In fact, I
can think of less than 5 persons in
the whole world who can reproduce these 3 computations out of the top of
their heads without needing to
look up references. Every educated physicist knows what the Hawking
temperature is, but quite few knows
how to derive it. For example, I know a famous tenured particle physicist |
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w****1
发帖数: 4931 | 43 Of course. That is the difference between knowing and understanding. |
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N***m
发帖数: 4460 | 44 。。。
理解的东西时间久了也会忘掉的，特别是要知道的东西越来越多的时候。 |
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e**********n
发帖数: 359 | 45 So what? What is your point? In every job, there are difficult skills that
only a few experts can master. Does
a string theorist necessarily know how to classify all simple finite groups?
What about the Fermat's
theorem? There are hundreds of examples, e.g. exactly solvable models in
condensed matter physics,
exactly solvable stochastic volatility models in mathematical finance. Even
the implementation of floating
number arithmetics on computers, which you might take for granted, is not
trivial. |
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w****1
发帖数: 4931 | 46 What you are saying has absolutely nothing to do with my post. Not sure why
you were replying to me.
By the way, string theorists do know what the monster group is. We know a lot about monstrous
moonshine. We also know about elliptic curves, the Weil conjecture, exact solutions of sine-Gordon models
and integrable spin chains. It is not just because we have more curiosity than other physicists. All of these
came up in different contexts in string theory.
groups?
Even |
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e**********n
发帖数: 359 | 47 That Nobel Laureate also told me not to be arrogant. At that time, I didn't
think I was arrogant, but what I was
doing simply came up naturally in my speech. Today I don't think I intended
to be arrogant, but just the
perception of the listener was so, even the listener was thought to be an
elite physicist.
Andrew Wiles does not need to prove to the public that he knows a lot about
analytic number theory, or
algebraic curves, or everything else so on and on. He works in his field
silently, knowi |
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w****1
发帖数: 4931 | 48 In fact, string theorists are the most open minded group of physicists I know of. However, we don't tolerate
ignorance. Arrogance is okay, ignorance is not okay. Do I enjoy talking to an arrogant person? If he knows
more than I do, then definitely yes. There is a very arrogant physicist in New Jersey (no, I'm not talking
about Ed :) ), and I enjoy talking to him every time because there are lots I can learn from him.
It is not my duty to educate you about string theory, but I suggest you learn a |
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e**********n
发帖数: 359 | 49 Easy easy, there's nothing wrong with BSO on BBS, but it's your fault to
assume that only you have something
to BSO.
know of. However, we don't tolerate
an arrogant person? If he knows
New Jersey (no, I'm not talking
lots I can learn from him.
learn a little more about string |
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w****1
发帖数: 4931 | 50 Dude, I'm not even showing off. You asked me if string theorists know about
classification of simple finite
groups etc etc, and I was answering your question. |
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