Bits, Bittier Bits & Qubits: Physics of Computing
For more than 40 years, Moore's Law has held astonishingly accurate as the number of transistors, and along with it the processing power, of personal computers has doubled roughly every two years. Soon, however, as the very physics behind the technology reaches atomic scales, computing will need to either adopt a new paradigm or come to a screeching halt as it reaches fundamental limits.
Joshua Turner is an experimental physicist at Stanford's SLAC National Accelerator Laboratory, where he uses the Linac Coherent Light Source, the world’s first X-ray free-electron laser, to study the atomic properties of materials, with a particular focus on properties of ultra-small magnets. In this session, Turner will explain experiments probing the ultrafast, nanoscale limits of magnetic materials. He will also describe proposed techniques that could shatter Moore's Law by exploiting characteristics of particles and atoms like how they spin, their ‘orbital’ configuration or quantum superposition.
Additional Supporting Materials
- How do magnetic memory bits work and how have they improved since the first personal computers?
- What causes the atomic limits on smaller and faster magnetic switches in silicon and when will we reach those?
- Can other materials or other switching mechanisms provide faster and/or smaller switches, revolutionizing computing?
- How would proposed electronics using electron orbitals or spins work?
- What is a Qubit and what are the main differences between a quantum computer and a futuristic computer based on orbital electronics?
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