The End of Space and Time? – Professor Robbert Dijkgraaf

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Roger Penrose: A Knight on the tiles – plus Magazine

Roger Penrose: A Knight on the tiles

from plus magazine

“Sir Roger Penrose is one of the world’s most widely known mathematicians. His popular books describe his insights and speculations about the workings of the human mind and the relationships between mathematics and physics. His interests range from astrophysics and quantum mechanics to mathematical puzzles and games. As a teenager, he invented the so-called “Penrose staircase”, used by Escher in some of his famous optical illusion drawings, such as the one below. Helen Joyce from the Plus team talked to Sir Roger about his ideas.”

How Does a Quantum Computer Work? – Veritasium

“A quantum computer works in a totally different way from a classical computer. Quantum bits or ‘qubits’ can exist in a superposition state of both zero and one simultaneously. This means that a set of two qubits can be in a superposition of four states, which therefore require four numbers to uniquely identify the state. So the amount of information stored in N qubits is two to the power of N classical bits.”