Applying the lessons learned in quantum information theory to gain a better understanding of quantum mechanics itself. Is quantum theory simply a new type of probability theory? Exploring new directions towards combining quantum theory with gravity.

Philosophy of physics, puzzles about the content and status of foundational principles – the logic of physicists’ basic assumptions, especially with regards to space and time, and the history of science, e.g. exactly how Einstein made his discoveries.

Newton\'s first law of motion - and the very meaning of inertia - has been described as either completely obvious (D\'Alembert) or a \'logician\'s nightmare\' (ex-editor of the American Journal of Physics). Sometimes the simplest things in physics are the most subtle. The first law will be described in historical context, explaining a connection with the ancient Greeks’ distinction between natural and violent motion and with Descartes\' natural philosophy. You will also learn why it still requires careful handling and what it tells us about time in physics.

Einstein’s profound ideas about relativity and the quantum have provided generations of people with some of the most thought-provoking concepts ever proposed about the wonders and mysteries of our universe. This lively panel discussion will examine Einstein’s enormous contributions to our understanding. Relativity, Smolin, Stachel, Moffat, Einstein, relativity theory, revolutionary, quantum, Planck, unified field theory, social impact, scientific revolution, physics, history

Do ideas about information and reality inspire fruitful new approaches to the hardest problems of modern physics? What can we learn about the paradoxes of quantum mechanics, the beginning of the universe and our understanding of black holes by thinking about the very essence of information? The answers to these questions are surprising and enlightening, but also controversial. The topic of information within physics has involved some of the 20th century\'s greatest scientists in long-running intellectual battles that continue to the present day.

The final part of the 04-05 Public Events series turns the spotlight on you. It’s your chance to ask a panel of Perimeter researchers for their thoughts on a wide variety of scientific topics. Heisenberg, uncertainty principle, discrete theory, space-time, Thiemann, quantum, relativity, special relativity, quantum theory, Emerson, coherent superpostions, Shrodinger, Sorkin, clock, Freidel, gravity, Romelsberger, Burgess, Einstein, string theory, quantum entanglement

Could the laws of physics change? The laws of physics are usually meant to be set in stone; variability is not usually part of physics. Yet contradicting Einstein\'s tenet of the constancy of the speed of light raises nothing less than that possibility. I will discuss some of the more dramatic implications of a varying speed of light.

Quantum cryptography, quantum physics, cryptography, one-time pad, RSA, encryption, public key, decryption, private key, quantum computer, qubit, quantum key, distribution, QKD, Moore\'s Law, probability, quantum theory, complex number, beam splitter, superposition, electron orbital, Turing, quantum parallelism, EPR, Bell, information security

In 1905, there were prominent scientists who did not believe in atoms. Einstein did. His April and May papers were motivated in part to support the concept of atoms. The April paper, Einstein’s dissertation and one of his most cited papers, shows how the dimensions of a sugar molecule, suspended in water, can be determined. His method had many practical applications, hence the citations. In the May paper, a pollen particle took the place of a sugar molecule. For decades, the irregular, zig-zagging motion of pollen particles was a mystery.

Artur Ekert, quanta, cipher, computers, secure communication, cryptography, permutations, substitution, quantum, spooky action, entanglement, Schrodinger, quantum theory