The classroom as if just started shortly. 课堂似乎刚开始没多久。 Shoves open the back door gently, looked the middle age of turning away from the classroom blackboard writing teaches one, Lu Zhou has not disturbed the schoolmate who he and other attended a lecture, even has not disturbed by the entrance to lie the buddy of sleeping, but looked for a common position in the back row of lecture amphitheater, sits down very much low-key. 轻轻推开后门,看了背对着教室板书的中年教授一眼,陆舟没有打扰到他和其它听课的同学,甚至没有打扰到门口旁边趴着睡觉的哥们儿,只是在阶梯教室的后排找了个不起眼的位置,很低调地坐下。 The inspiration will not walk, seeks. 灵感是不会自己找上门来的,得自己去寻找。 Lu Zhou approved the fermi once to say very much a few words, pondered that some obvious issues were why obvious, help deepen to the issue understanding that these was abstrusely difficult to understand. 陆舟很认同费米曾说过的一句话,思考一些显而易见的问题为何显而易见,有助于加深对那些深奥难懂的问题的理解。 These words places on Physics in the math, has the precedent to follow. 这句话无论是放在物理学上还是数学上,都是有先例可循的。 Before Princeton, if came across the difficult problem of being able to untie, Lu Zhou will then find the time to give the undergraduate student in the gate several classes, or will also go to the classrooms of other professors to look for the inspiration occasionally. 以前在普林斯顿的时候,如果遇到了解不开的难题,陆舟便会抽时间去给本科生门上几堂课,或者偶尔也会去其他教授的课堂上寻找灵感。 For example when studying the Goldbach's conjecture, a theory of numbers class of Professor Fefferman, has then brought very big inspiration to him. But this is not because he spoke how abstruse thing in the class, what just the opposite is, at that time he said is only some easy to understand things...... 比如在研究哥德巴赫猜想时,费弗曼教授的一堂数论课,便给他带来过很大的启发。而这并非因为他在课上讲了多么深奥的东西,恰恰相反的是,当时他所讲的都只是一些很通俗易懂的东西…… Completed the blackboard writing on blackboard, stands that middle-aged professor on platform clears throat, says. 完成了在黑板上的板书,站在讲台上的那位中年教授清了清嗓子,开口说道。 „Quantum mechanics is a very abstruse division/discipline, if you penetrate to understand it truly, its existence will even subvert you to the microcosm, to Physics, even is the understanding of classical philosophy. Although I know that my sound will be very possibly good to help the dormancy, but I do not recommend you to start to sleep from the first class......” “量子力学是一门很深奥的学科,如果你们真正深入去了解它,它的存在甚至将颠覆你们对微观世界,对物理学,甚至是经典哲学的理解。虽然我知道我的声音可能会很好助眠,但我不推荐你们从第一堂课就开始睡觉……” In the classroom resounded the well-meaning laughter, sits also smiles in back row Lu Zhou. 教室里响起了善意的笑声,坐在后排的陆舟也不禁莞尔。 It seems like this professor is also the young scholar of a little teaching level, at least no opens the textbook to illuminate ppt to read the preface. 看来这位教授也算是个有点教学水平的年轻学者,至少没有一翻开课本就照着ppt念序言。 Just, his sound is not loud and clear possibly is a mechanical damage. 只不过,他的声音并不洪亮可能是个硬伤。 At least sits that buddy by Lu Zhou, plan that at present has not woken up. 至少坐在陆舟旁边的那位哥们儿,目前还没有醒来的打算。 Swept one waked up several, several that as well as has not woken up, that middle-aged professor shrugs humorously, does not care continues to explain religious doctrine. 扫了一眼已经醒来的几位,以及还没醒来的几位,那位中年教授幽默地耸了耸肩,也不在意地继续讲道。 „We know, a while ago that side Haizhou star-2 DEMO, ignited under our school's Professor land direction successfully, the Controlled Nuclear Fusion power technology of our country also walked from this in the most front row of the world, becomes only one to complete commercial pile of countries.” “我们都知道,前段时间海州那边的star-2示范堆,在咱们学校的陆教授的指挥下点火成功,咱们国家的可控聚变发电技术也由此走在了世界的最前列,成为了唯一一个建成商业堆的国家。” Hears these words, is sitting in Lu Zhou that the back row attended a lecture is immediately embarrassed. 听到这句话,正坐在后排听课的陆舟顿时就不好意思了。 How to speak the quantum mechanics to pull to him on? 怎么讲个量子力学都能扯到他身上去？ This is not the plasma physics. 这又不是等离子体物理。 However actually the professor on stage said was very energetic, students in the lecture amphitheater were also full of the interest in this topic obviously, by Lu Zhou lay is resting the fragrant that buddy, have a drowsy look lifted, a face compelled to look ignorant to the platform. 不过台上的教授倒是讲的挺带劲的,阶梯教室里的学生们显然对这个话题也充满了兴趣,就连陆舟旁边趴着睡得正香的那哥们儿,都睡眼惺忪地抬起了头来,一脸懵逼地向讲台上看去。 At this time, Lu Zhou noticed, pressed under his arm that quantum mechanics teaching material on the flyleaf that opened, writes teaching classes teacher name as well as telephone. 这时候,陆舟注意到,压在他胳膊底下那本量子力学教材翻开的扉页上,写着的任课老师名字以及电话。 Opens celebrates? 张中庆？ Has not heard...... 没听说过…… „...... According to public data, star-2 DEMO- or the present Pangu piles, the reactor core internal temperature peak value reaches as high as 130000000 degrees Celsius, is solar center temperature about 9 times!” “……据公开数据,star-2示范堆-或者说现在的盘古堆,堆芯内部温度峰值高达130000000摄氏度,是太阳中心温度地近九倍！” Looks the students who in the classroom exude the whoa, stand Professor stretch/open in the heart on stage secretly rejoice, knows oneself successfully hold students attention him, immediately strikes while the iron is hot to say. 看着教室里发出惊叹声的学生们,站在台上的张教授心中暗喜,知道自己成功抓住学生们注意力的他,立刻趁热打铁道。 „Such temperature, the common material definitely cannot withstand. Therefore the star-2 DEMO of our country selected the method of magnetic confinement, will participate in the ionized state i deuterium tritium mixture that responded, restrained in the closed magnetic cage.” “这样的温度,一般的材料肯定是承受不住的。所以我们国家的star-2示范堆采用了磁约束的方式,将参与反应的电离态i的氘氚混合物,约束在闭合的磁笼中。” „Then the issue came, I want to ask the schoolmates, why does Controlled Nuclear Fusion need the so high temperature to respond? In other words, why can't the fusion reaction conduct under the normal temperature?” “那么问题来了,我想问同学们,为什么可控聚变需要如此高的温度才能进行反应？或者换句话,为什么聚变反应不能在常温下进行？” In classroom peaceful. 教室里安静了下来。 Sits that buddy by Lu Zhou curls the lip, whispered low voice the sentence. 坐在陆舟旁边的那哥们儿撇了撇嘴,小声嘀咕了句。 „This rubbish?” “这不废话吗？” Heard this tsukomi, Lu Zhou to lift the eyebrow interestingly, was planning that asks he had what respected opinion. However has not waited for the Lu Zhou opens the mouth, he then continued. 恰好听见了这句吐槽,陆舟饶有兴趣地抬了抬眉毛,正打算问问他有何高见。不过还没等陆舟开口,他便继续说了。 „...... This, if can conduct under the normal temperature, that was not a thing can the nuclear fusion.” “……这要是能在常温下进行,那不是个东西都能核聚变了。” Lu Zhou: „......” 陆舟:“……” „Which schoolmate has to stand to say?” “请问有哪位同学能站起来讲讲？” Sweeps classroom that the eye no one raised hand, stood Professor stretch/open on platform must supplement, „this issue had the usual performance.” 扫了眼没有人举手的教室,站在讲台上的张教授只得补充了一句,“这个问题有平时成绩。” Shuā！ 唰唰唰！ Hears to have the usual performance, in the classroom more than 50% people raise instantaneously the hand. 听到有平时成绩,教室里一半以上的人瞬间把手举起来。 „I know!” Obtained hint of professor, sits, wears the female study tyrant of eyeglasses to stand up in the first row, the language fast replied fast, „as a result of the atomic nucleus belt/bring positive electricity, between the nuclear and nuclear had the Coulomb repulsion. In situation that only when two atomic nuclei enough are close , the strong acting force can overcome the Coulomb repulsion, gets together two atomic nuclei together. Macroscopically, only then enhances in the system the heat, accelerates the heat movement of system mol, can make the atomic nucleus collide by enough kinetic energy together, has the fusion reaction.” “我知道！”得到了教授的示意,坐在第一排、戴着眼镜的女学霸站起身来,语速飞快地回答道,“由于原子核带正电,核与核之间存在库伦斥力。只有当两个原子核足够接近的情况下,强相互作用力才能够克服库伦斥力,将两个原子核聚合在一起。在宏观上,只有提高体系内热量,加速体系内分子的热运动,才能够使原子核以足够的动能碰撞在一起,发生聚变反应。” „Good of reply,” wrote down a score in the register of names conveniently, that middle-aged professor clears throat , to continue to say with a smile, „the issue came, you have pondered, why can the strong acting force only then happen under the extremely short distance?” “回答的不错,”在名册上随手写下了个分数,那中年教授清了清嗓子,笑着继续说道,“那么问题来了,你们有没有思考过,为什么强相互作用力只有在极短的距离下才能发生？” „Because...... is the short-range force?” “因为……是短程力？” „This is the explanation of physics in senior middle school textbook, moreover said and has not said not different,” Professor stretch/open smiles, hints that after student who stands up the reply sits down , to continue saying that „you now are the university students, except for should know that ‚is anything’ beside, why should understand ‚’.” “这是高中物理课本的解释,而且说了和没说没什么两样,”张教授笑了笑,示意那位起立回答的学生坐下之后,继续说道,“你们现在已经是大学生了,除了应该知道‘是什么’之外,更应该去了解‘为什么’。” „Quantum field theory told us, among the granules the interaction was not the distant action, but took the medium to launch through some type of boson. For example what electromagnetic interaction exchange is the photon, what strong interaction exchange is the gluon or the meson, the weak interaction exchanges w and z boson...... possibly people might ask, does the effective scope of strength this and we said what relations have?” “量子场论告诉我们,粒子间相互作用不是超距作用,而是通过某种玻色子作为介质来展开的。比如电磁作用交换的是光子,强相互作用交换的是胶子或者介子,弱相互作用交换w与z玻色子……可能有人会问,这和我们说的力的作用范围又有什么关系呢？” Saying, Professor stretch/open turned around to the blackboard, wrote while explained religious doctrine. 说着,张教授转身面向了黑板,边写边讲道。 „Supposes among the fermions that two may distinguish to have the scattering( p + k → p'+ k'), in Byrne approximate, can obtain the scattering cross section and interaction can have the following relations......” “设两个可分辨的费米子之间发生散射(p+k→p'+k'),则在伯恩近似下,可以求得散射截面和相互作用是能有如下关系……” 【& lt ; p'| it | p & gt ; =-iv ( q)( 2 π) Delta( ep'-ep),( q = p'-p)】 【<p'|it|p>=-iv(q)(2π)δ(ep'-ep),(q=p'-p)】 【......】 【……】 Who am I? 我是谁？ Where am I at? 我在哪？ Looks up the mathematical formula on blackboard, sits in the expression that by Lu Zhou a that buddy face compels ignorant, suspected oneself attended class to rest to passing through. 抬头看着黑板上的算式,坐在陆舟旁边的那哥们儿一脸懵逼的表情,怀疑自己是不是上课睡到穿越了。 „F*ck? It is not speaking the nuclear fusion...... what's today's date is coming.” “握草？不是在讲核聚变么……今天是几号来着。” Was distracted obviously such two seconds, he has to plant the feeling of curriculum that missed a semester. 明明只是走神了那么两秒钟,他却有种错过了一学期的课程的感觉。 In fact not only he. 事实上不只是他。 Sits the person in classroom, can understand this Professor stretch/open above lecture of anything less than half. 坐在教室里的人,能看懂这位张教授在上面讲什么的不到一半。 Looks buddy one eyes that side that face compelled ignorant, Lu Zhou smiles, asked in a soft voice. 看了旁边那一脸懵逼的哥们儿一眼,陆舟笑了笑,轻声问。 „To know?” “想知道？” „Thinks that...... you can understand?” A buddy face compelled to look at Lu Zhou one ignorant, reason that possibly has not awaked, to had not responded who sat his nearby person is. “想……你能看懂？”那哥们儿一脸懵逼地看了陆舟一眼,可能是没睡醒的缘故,到是没反应过来坐他旁边的人是谁。 Lu Zhou smiles: „Thought words, I taught you to be good.” 陆舟笑了笑说:“想的话,那我教你好了。” Stopped the chalk in hand, Professor stretch/open turned around, looks the students who a face compelled ignorant, the corners of the mouth curled upwards under. 停下了手中的粉笔,张教授转过身来,看着一脸懵逼的学生们,嘴角翘了下。 Cannot understand very normally. 看不懂很正常。 The quantum mechanics is the difficulty in Physics. 量子力学本身就是物理学中的难点。 Especially related to the computation, did not have certain mathematical foundation is incorrect. 尤其是涉及到了计算,没有一定的数学基础是不行的。 Said he himself only, the conclusion is nothing issue, but lets his field calculation the words, pours not to really be possible before finishing class to calculate. 单说他自己,记个结论是没什么问题,但让他现场计算的话,倒还真不一定能在下课之前算出来。 „Computational process is very complex,” threw the chalk in hand on the teacher's desk, Professor stretch/open the double back of the hand after behind, smiled was saying, „, if can complete the remaining parts, this class usual performance I all gave him, later this class did not need to come.” “这其中的计算过程很复杂,”将手中的粉笔丢在了讲桌上,张教授双手背在了身后,微笑着说道,“谁要是能完成剩下的部分,这门课的平时成绩我全给他,以后这堂课也不用来上了。” In the lecture amphitheater dies the same peace. 阶梯教室里死一样的安静。 The students look at each other in blank dismay. 众学生面面相觑。 Is these rubs the class graduate student, is a face compels ignorant. 就是那些来蹭课的研究生,也是一脸懵逼。 Professor stretch/open shakes the head with a smile, when he plans this issue as the ponder topic arranges, the back row of classroom broadcast a sound. 张教授笑着摇了摇头,就在他打算将这个问题作为思考题布置下去的时候,教室的后排传来了一道声音。 „Can I use the blackboard?” “我可以用下黑板吗？” Opens celebrates: „......???” 张中庆:“……？？？”