Friday, May 20, 2011

Prof. Ciann-Dong Yang, Brotherhood member

Readers may recall the 3rd International Symposium on Nonlinear Dynamics held 25-28 September 2010 at Donghua University in Shanghai. It was hosted by Ji-Huan He and Mohamed El Naschie was a guest of honor. We wrote about it in these posts:

The other special guest was Prof. Ciann-Dong Yang of National Cheng Kung University, Taiwan. I thought at the time he might be a hapless but real scientist with the misfortune to find himself surrounded by crackpots, but have a look at this:

Complex Mechanics

He has a novel theory of quantum mechanics, called "complex mechanics", based on engineering, Tai Chi and Yin-Yang. (See page 13.) But it gets worse:

El Naschie’s E-infinity theory is one of the very few publications that hold the same view as complex mechanics.


Being not on the mainstream of contemporary physics, complex mechanics has undergone a painful experience in its publication. The publication of complex mechanics would have been impossible without the decisive supports from Prof. El Naschie (the founding editor of Chaos, Solitons and Fractals) and Prof. Ji-Huan He (Editor-in-chief, Nonlinear Science Letters A, International Journal of Nonlinear Sciences and Numerical Simulation). Their appreciation and understanding of Chinese culture in Western science give me a chance to introduce complex mechanics to the public literature. The initiation of the research of complex mechanics is inspired by the philosophy of Taoism, and I would like to dedicate this book to the memory of all the ancient Chinese wisdoms.

OMG, he's in it up to his neck. This is particularly alarming:

A teaching program based on complex mechanics at National Cheng Kung University (NCKU) showed that students enrolled in this course are benefited greatly from the bridge provided by complex mechanics that allows them to accelerate and deepen the learning of quantum mechanics by their previous knowledge and experience gained from engineering mechanics.

Translate English to Arabic
محمد النشائى El Naschie Watch محمد النشائي El Naschie News محمد النشائى محمد النشائي All El Naschie All The Time محمد النشائى


  1. Here is a list of publications: But I have not been able to find his Chinese name yet.

  2. That was because of that awful transliteration system. His name should be written Yang Xiandong according to the pinyin system. And here is his webpage:

    There is even an English version, rejoice.


    The guy looks legit enough to me .Anyone here expert enough to give an opinion ? Because I might actually try to study this stuff, I don't want to be wasting my time .

  4. Dan, C-D Yang cites the crackpot and charlatan Mohamed El Naschie with approval, so I would suggest getting a good quantum mechanics book and studying that instead. Or a good engineering math book, if that's what you are interested in.

  5. I'm not familiar with the controversy surrounding Professor Ciann-Dong Yang (and it's sad to see it in academia, as ideas should be judged on their own accord independent of the source), but I stumbled across one of his papers and it looks like a novel way of thinking about quantum mechanics. The correspondance between quantum and classical mechanics is still very much up for interpretation and numerous methods exist. Examples include connecting Poisson brackets and commutation relations, viewing classical paths as a limit of Feynman path integrals, and the approach that Professor Yang uses which is to correspond the action, a cornerstone of Lagrangian mechanics, with the phase of the quantum mechanical wavefunction. All of these methods can be found in graduate level quantum mechanics texts (such as Sakurai). Professor Yang simply takes the connection between the phase of the wavefunction and the action a step farther and uses the non-classical part of the Schrodinger equation written in terms of the quantum action, which in the classical, short wavelength limit drops out and reduces the Schrodinger equation to classical equations of motion, and uses it as an additional potential (the "quantum potential") in the equation of motion of a particle. This alternative view, like all the others, may have some deeper philosophical implications, but at the very least it gives us some insight into the correspondance between our classical view of the world and the unintuitive world of quantum mechanics, as well as the possibility of being a useful way of solving certain problems in quantum mechanics. From my perspective as a PhD student in physics, it is at the very least an interesting approach to quantum mechanics and may prove useful to the physics community no matter what controversy might surround the author.