Happy Birthday Einstein

Today we commemorate the birthday of one of the most well renowned physicist of the 20th century. He is none other than Albert Einstein. who developed the general theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics). Even though he is known for his mass–energy equivalence formula E = mc^2, which has been dubbed "the world's most famous equation", he received the 1921 Nobel Prize in Physics "for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect", which was pivotal in establishing quantum theory.

Near the beginning of his career, Einstein thought that Newtonian mechanics was no longer enough to reconcile the laws of classical mechanics with the laws of the electromagnetic field. This led to the development of his special theory of relativity.
He realized, however, that the principle of relativity could also be extended to gravitational fields, and with his subsequent theory of gravitation in 1916, he published a paper on the general theory of relativity. He continued to deal with problems of statistical mechanics and quantum theory, which led to his explanations of particle theory and the motion of molecules. He also investigated the thermal properties of light which laid the foundation of the photon theory of light. In 1917, Einstein applied the general theory of relativity to model the structure of the universe as a whole.

Quantum Mechanics Study Materials

Image Courtesy : http://bit.ly/1nxAvAM

Introduction:

Our description of the physical world is dynamic in nature and undergoes frequent change. At any given time, we summarize our knowledge of natural phenomena by means of certain laws. These laws adequately describe the phenomenon studied up to that time, to an accuracy then attainable. As time passes, we enlarge the domain of observation and improve the accuracy of measurement. As we do so, we constantly check to see if the laws continue to be valid. Those laws who do remain valid gain in stature, and those who do not are abandoned in favor of new ones that do. 

In this changing picture, the laws of classical mechanics formulated by Galileo, Newton, and later by Euler, Lagrange, Hamilton, Jacobi, and others, remained unaltered for almost three centuries. The expanding domain of classical physics met its first obstacles around the beginning of 20th century. The obstruction came on two fronts: at large velocities and small (atomic) scales. The problem of large velocities was successfully solved by Einstein, who gave us relativistic mechanics, while Bohr, Heisenberg, Schrödinger, Dirac, Born, et al.—solved the problems of small-scale physics. Quantum mechanics brings with it not only improved numerical predictions for the microscopic world, but also conceptual changes that rock the very foundations of classical thought. With that being said, we present to all of you the necessary lecture notes, lecture videos, etc., found in the WWW domain to study/learn quantum mechanics.