Schrödinger’s Cat and Quantum Mechanics? – Josh Samani | TED-Ed
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Unlock the mysteries of quantum mechanics with Schrödinger's Cat - explore the strange and beautiful phenomenon of quantum entanglement! Schrödinger's cat, a famous thought experiment, can teach us a lot about quantum mechanics. In this TED-Ed video by Josh Samani, he explains that the physics of everyday phenomena we observe behaves according to the laws of classical mechanics, while systems on the scale of atoms behave according to the laws of quantum mechanics. This quantum world is strange and fascinating - with quantum entanglement, particles can be entangled in a superposition state, and remain so even when separated by vast distances. This phenomenon has been confirmed in real world lab experiments, and is at the core of quantum information science, a growing field used for applications like quantum cryptography and quantum computing. Learning Outline1. Classical mechanics describes the physics of everyday phenomena while quantum mechanics describes the physics of systems at the atomic scale. Instructional ContentSchrödinger's cat is a famous thought experiment that illustrates the strange and counter-intuitive nature of quantum mechanics. The experiment involves a cat placed in a box with a bomb that has a 50% chance of exploding, and the outcome of the experiment is that the cat is in a superposition state of both alive and dead until someone opens the box and observes the cat. This is because systems on the scale of atoms behave according to the laws of quantum mechanics which is very different from the laws of classical mechanics. Quantum entanglement is another concept introduced by the thought experiment. It states that the states of two cats in two different boxes can be entangled in a way that when the boxes are moved to opposite ends of the universe, the outcome of the experiment will always be the same, with one cat alive and the other dead, even though which particular cat lives or dies is completely undetermined before we measure the outcome. This phenomenon has been confirmed in real world lab experiments and is at the core of quantum information science. Schrödinger's cat is a fascinating example of the strange and counter-intuitive nature of quantum mechanics and quantum entanglement. It provides us with a glimpse into a world of physics which is very different from the everyday physics we are familiar with, and which could potentially have a huge impact on our lives. From quantum computing and cryptography to quantum teleportation, this strange world of physics could one day change our lives in unimaginable ways. Cognition
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Schrödinger's Cat is a famous thought experiment that teaches us about quantum mechanics. It's like throwing a ball in the air - you know what will happen because it's something you've seen before. But on the tiny scale of atoms, things get strange - like the cat in the box being both alive and dead at the same time. This 'superposition' is called quantum entanglement, and it's been proven to exist in the real world. It means that two cats on opposite sides of the universe can be connected in a way that no matter what, one will always be alive and the other dead. It's very weird, but it's true! Quantum mechanics can be used for things like sending secure messages and cracking secret codes, and one day, it may even help cats escape to a safer galaxy. Video Quotes"The everyday world you know and love behaves according to the laws of classical mechanics. But systems on the scale of atoms behave according to the laws of quantum mechanics. This quantum world turns out to be a very strange place." - Josh Samani "In quantum physics, we could say that before our observation the cat was in a superposition state. It was neither alive nor dead but rather in a mixture of both possibilities, with a 50% chance for each." - Josh Samani "Two subatomic particles entangled in a superposition state, where if one spins one way then the other must spin the other way, will do just that, even when there's no way for information to pass from one particle to the other indicating which way to spin to obey the rules of entanglement." - Josh Samani Related Quotes"Quantum mechanics tells us that a system can exist in multiple states at the same time." - Josh Samani Competencies1. Information Literacy Learning Outcomes1. Remember: Explain the concept of Schrödinger's cat and the implications of quantum entanglement. Sample Answers1. Schrödinger's cat teaches us that in the quantum world, particles behave in a very different way than everyday physics. For example, particles can exist in a superposition state, where they can be in multiple states at the same time. 2. Quantum entanglement is another important concept taught by Schrödinger's cat. It shows that two particles can be entangled such that the outcome of one will determine the outcome of the other, even if they are on opposite sides of the universe. 3. Finally, Schrödinger's cat demonstrates the potential of quantum information science, which is the study of using the laws of the quantum world in everyday applications. For example, quantum cryptography can be used to send secure messages, and quantum computing can be used to crack secret codes. Josh SamaniJosh Samani is a physicist and the Physics Lead at the Institute for Quantum Computing at the University of Waterloo. He holds a bachelor's degree in Physics from the University of Toronto and a Ph.D. in Physics from the University of Waterloo. He is an expert on Schrödinger's cat and quantum mechanics because of his research in quantum computing and his experience teaching quantum mechanics. He has published research in the fields of quantum computing and quantum information processing. Josh Samani is also associated with the Institute for Quantum Computing at the University of Waterloo, where he is the Physics Lead. Josh Samani Learning DesignThese competencies are important for this course because they are essential to success in many areas of life, from academic study to professional advancement. Information literacy is the ability to find, evaluate, and effectively use information to solve problems. It is critical for students to learn to find and use the most accurate and up-to-date information for the course. Critical thinking is the ability to analyze and evaluate information in order to make sound decisions. This skill is essential for understanding complex topics and developing new insights. Cognitive flexibility is the ability to think flexibly and adapt quickly to changing situations. This helps students to be able to see things from different perspectives and to come up with creative solutions. The framework or pedagogy students can use to help build these competencies is to focus on engaging activities that help students to develop and practice each of these skills. For example, students can practice information literacy by searching for and evaluating sources to answer questions or complete assignments. They can practice critical thinking by evaluating the validity of sources and analyzing their findings. Cognitive flexibility can be developed by exploring different points of view and recognizing the strengths and weaknesses of each. Furthermore, students should be encouraged to think critically and flexibly when discussing topics and presenting their findings. AssessmentQ: What can Schrödinger's cat teach us about quantum mechanics? Answer: D. How two subatomic particles can be entangled in a superposition state QuestionsCommon Hypothetical Questions 1. What is the difference between classical mechanics and quantum mechanics? Real-Life Examples and Scenarios KeywordsSchrödinger's Cat, Quantum Mechanics, Quantum Entanglement, Quantum Information Science, Quantum Cryptography, Quantum Computing Facts1. Schrödinger's cat illustrates the concept of quantum superposition, where a system is in two states simultaneously. Trends1. Host a series of online seminars discussing the implications of Schrödinger's cat and its role in quantum entanglement. SourceThis learning instructional guidance was formulated using the GPT-3 language model created by OpenAI. 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