One day I am sure that physics will view Nature as real. Throughout history initial ideas of non-local effects, also called “action-at-a-distance”, have been repudiated and replaced with something more physically reasonable. The most well-known examples are the early attempts to understand gravity and electromagnetism. So it will be with non-locality between entangled particles.Read More
This complementary nature of states with non-commuting operators, (σX, σY ,σZ), is the basis for the Copenhagen Interpretation of Quantum Mechanics (CI). It states, basically, that if the Z states exist then the X do not, and vice versa. I would rather conclude that it is impossible to determine experimentally if spin has more than one axis of quantization.Read More
I have been invited to India this July to give a series of 10 to 15 hours of lectures covering the basic properties of spin. The sponsor is NPTEL—the National Programme On Technology and Enhanced Learning. My course is to be at the upper undergraduate level and I will assume the recipients have had a basic course in quantum mechanics, know about the structure of matter and the importance of the Pauli Exclusion Principle.Read More
I believe it is long overdue to do away with hard copy text books at the freshman level altogether, along with their high cost and adopt ebooks.
Think of the advantages: no paper, nothing to ship, can be updated so users always have the latest edition, integrated into the internet, easy to copy protect, and can be sold for a fraction of the price of hard copy. No resale market.Read More
A “course” is a “path” through the material which your prof. decides is important and attempts to teach you. Exams come from that material, so listen to him/her. You need to organize that material, see how it fits in the big picture and manage your time properly: that is you must be efficient.Read More
Let us suppose that you read somewhere that perfect pancakes should have a density of 0.7 g ml-1. How could you ensure that you cook the pancakes so that they come out with that density?Read More