Quantum Mechanics

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Quantum Mechanics

  1. 1. QUANTUM MECHANICS What is Quantum Mechanics? A branch of Physics which deals with physical phenomena at microscopic scales.
  2. 2.       Black body radiation Instability of classical atoms Quantization of certain physical properties Wave-particle duality Uncertainty Principle Quantum Entanglement Why Do We Need Quantum Mechanics?
  3. 3. How does a quantum system work? Quantum System Quantum State Operator Eigen State Wave function
  4. 4. A set of mathematical variables that maximally describes a quantum system but not fully. Types of quantum states 1. Pure quantum states 2. Mixed quantum states Quantum State
  5. 5.  Why do particles behave as  Where does the relation of waves? momentum, p, Plank’s constant, h, and wavelength come from?  How does the double slit experiment show wave-particle duality? Wave-Particle Duality
  6. 6.  Why can’t we measure position and momentum of a particle simultaneously?  What constitutes a measurement?  What does the Uncertainty Principle predict? Uncertainty Principle
  7. 7. If a physical system may be in some configuration, and if the physical system could be in another configuration then it is in a state which is a superposition of the two.  What if the system is definitely in one state?  Why should there be quantum superposition?  How do we know the intermediate character?  What are the predictions of quantum superposition?  Quantum Superposition
  8. 8.  A system stops being in the superposition of states and becomes either one or the other when an observation takes place. Schrodinger’s cat paradox
  9. 9. It occurs when particles interact physically and then become separated; the type of interaction is such that each resulting member of a pair is properly described by the same quantum mechanical description (state) which is indefinite in terms of factors such as position, momentum, spin, polarization.  Applications of entanglement  Quantum Teleportation  Super dense coding  Quantum Entanglement
  10. 10.  A process by which a qubit (the smallest unit of quantum information) can be transmitted exactly from one location to another, without the qubit being transmitted through the intervening space. Quantum Teleportation
  11. 11. Quantum Teleportation between Flying (Photonic) and Stationary (Atomic) Qubits

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