There are many secrets and mysteries in the world. In history, in space, in science. Even in each of us. What seems like science fiction becomes a scientific discovery and brings a Nobel Prize. For example, quantum entanglement is the main "magic" of quantum reality. We are made up of atoms that live by laws that are completely different from what is studied in physics at school. Quantum theory is perceived as a miracle. It is not observable, but it underlies everything around us. Paradoxically, quantum reality is not a reduced repetition of ours, it is different. And to understand this, we must abandon the usual abstractions of classical physics. Why do quantum objects not look like anything? What do a guinea pig and a wave function have in common? Does a cat create the Moon by looking at it? How does a quantum computer work? Even more interesting discoveries - at the EFKO lecture with Doctor of Physical and Mathematical Sciences Alexey Semikhatov "Mathematical Predictions and Quantum "Magic". About complex things - incredibly interesting, figurative and accessible. Press play. You will find a quantum "casino", secrets of teleportation and a mathematical "oracle"! Time codes: 00:00 Teaser 00:48 Start of the lecture 02:12 Quantum theory as a miracle 03:25 Atoms have their own rules and problems. What are they? 07:26 Ticket to the quantum world - rejection of familiar abstractions 09:05 Quantum theory of light 11:40 Quantum reality is not a reduced repetition of ours, it is different 14:44 Why do quantum objects not look like anything? 18:15 Does a cat create the moon by looking at it? 19:36 Success and "understatement" of quantum theory 21:54 Two unique features of the quantum world 25:21 Where does causelessness come from? 27:55 Why does the sun shine? 30:15 "Schrödingerization", or a description of the quantum world 33:29 What do a guinea pig and a wave function have in common? 34:26 A short course in addition and multiplication: cat + dog - capybara 37:12 "Game" in quantum mechanics 43:12 The law of quantum evolution in the Schrödinger equation 47:17 Welcome to the quantum "casino"! Entry strictly according to the Born rules 52:00 "Double life" of the electron and its brothers 54:53 Parallel universes, cubeism and other interpretations 57:22 The main magic of quantum reality is entanglement 1:04:27 Quantum teleportation: experiments of Anya and Yasha 1:11:04 "Magic" quantum computer 1:17:20 "Cheat sheet" beyond quantum mechanics 1:23:20 Quantum mechanics as a mathematical oracle 1:24:30 Questions from the audience. The theory of quantum gravity 1:27:28 The connection between the real and quantum worlds 1:32:01 What does the mirror show? 1:33:15 How does knowledge of quantum theory help in predicting financial markets? 1:35:27 Acceleration faster than the speed of light is possible! 1:37:36 What is a quantum algorithm? 1:40:12 Each of us is an agent of our own reality 1:42:17 The queue at the call center and the joy of waiting 1:44:11 The dual state of a qubit in a quantum computer 1:46:17 Is it possible to control the quantum world?