QUANTUM MECHANICS
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Questions and Answers

What is the term used to describe the combination of overlapping waves?

  • Interference
  • Superposition (correct)
  • Diffraction
  • Resonance
  • How does the electron's position differ from that of a planet orbiting the sun?

  • The electron's location is always precisely known.
  • The electron exists as a cloud of possibilities. (correct)
  • The electron follows a fixed path.
  • The electron is made of multiple particles.
  • What does the shape of the wave representing an electron's orbital depend on?

  • The electron's energy (correct)
  • The mass of the atom
  • The speed of the electron
  • The temperature of the environment
  • What is a common misconception when visualizing an electron in superposition?

    <p>Electrons can exist in one place only.</p> Signup and view all the answers

    In a quantum experiment with a beam of electrons and two slits, what is detected on the other side of the slits?

    <p>The cumulative results of many electrons</p> Signup and view all the answers

    What does the term 'orbital cloud' refer to in quantum mechanics?

    <p>A three-dimensional representation of probability</p> Signup and view all the answers

    What analogy is used to describe the overlap of waves in classical physics?

    <p>The blending of musical chords</p> Signup and view all the answers

    What can result from adding two quantum waves together?

    <p>The creation of a new wave pattern</p> Signup and view all the answers

    What is the result called when overlapping waves combine?

    <p>Superposition</p> Signup and view all the answers

    How does the electron's behavior differ from that of a classical particle like a planet?

    <p>Electrons exist in a cloud of possibilities.</p> Signup and view all the answers

    What does the shape of the wave representing the electron's orbital signify?

    <p>The energy levels of the electron</p> Signup and view all the answers

    Which statement accurately describes the concept of superposition in quantum mechanics?

    <p>An electron can have multiple energies simultaneously.</p> Signup and view all the answers

    What happens when two quantum waves are added together?

    <p>They create a new pattern of peaks and valleys.</p> Signup and view all the answers

    What is described as a three-dimensional quantum wave representing an electron's position?

    <p>Orbital cloud</p> Signup and view all the answers

    In what way do classical and quantum wave interactions differ in visual representation?

    <p>Quantum waves represent probabilities rather than definite locations.</p> Signup and view all the answers

    What is the phenomenon observed when a beam of individual electrons is fired at a barrier with two slits?

    <p>Wave interference pattern</p> Signup and view all the answers

    Study Notes

    Course Information

    • Course Code: PHYS3111
    • Course Name: Quantum Mechanics
    • Faculty: Science
    • School: Physics
    • Semester: T2, 2021

    Staff

    • Course Convenor: A/Prof Julian Berengut
    • Lecturer: Prof Oleg Sushkov
    • Laboratory Manager: Tamara Reztsova
    • Teaching Support Officer: Zofia Krawczyk-Bernotas

    Course Summary

    • Quantum mechanics is a fundamental course in modern physics, focusing on microscopic phenomena.
    • It provides a comprehensive introduction for further study in the field.
    • Topics include quantum mechanics in 3D, angular momentum, hydrogen atom, Landau levels, spin, identical particles, Clebsch-Gordan coefficients, perturbation theory, and scattering.

    Course Aims

    • Develop graduate attributes in research, inquiry, and analytical thinking, capability and motivation, ethics, communication in a scientific context, and collaborative/management skills.

    Learning Outcomes

    • Explain core principles of quantum mechanics.
    • Apply angular momentum and spin mathematical frameworks to 3D systems.
    • Use perturbation theory and scattering theory to analyze quantum systems.
    • Interpret experimental data.

    Learning and Teaching Activities

    • Assumed Knowledge: PHYS1221, PHYS1231, PHYS1241, MATH2069, MATH2011, MATH2111
    • Lectures: 2 hours + 2 hours (Weeks 1-5,7-10)
    • Tutorials: 1 hour per week (Weeks 1-5,7-10)
    • Laboratories: 2 x 3hr periods per term
    • Two experiments are conducted during the term in OMB142.

    Assessment

    • Assessment 1: Mid-session test - 50 mins, 15%
    • Assessment 2: Assignment - 2 hours, 10%
    • Assessment 3: Laboratory - 60%
    • Assessment 4: Final exam

    Schedule and Structure

    • Detailed timetable is available and can change
    • Weekly topics are outlined (e.g., angular momentum, separation of variables, spin, etc)

    Readings and Resources

    • Prescribed Text: Griffiths - Introduction to Quantum Mechanics (2nd Edition)
    • Recommended Text: Gasiorowicz - Quantum Physics
    • Other resources will be posted on Moodle

    Academic Integrity

    • Referencing is crucial for acknowledging sources.
    • Plagiarism has serious consequences.

    Administrative Matters

    • Email Regularly for university communications
    • Note that course communication may include links, emails, or other information regarding the course.

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