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BSc Physics with Theoretical Physics / Course details

Year of entry: 2021

Course unit details:
Quantum Physics and Relativity

Unit code PHYS10121
Credit rating 10
Unit level Level 1
Teaching period(s) Semester 1
Offered by Department of Physics & Astronomy
Available as a free choice unit? No

Overview

Quantum Physics and Relativity

Aims

  1. To explain the need for and introduce the principles of the Special Theory of Relativity.
  2. To develop the ability to use the Special Theory of Relativity to solve a variety of problems in relativistic kinematics and dynamics.
  3. To explain the need for a Quantum Theory and to introduce the basic ideas of the theory.
  4. to develop the ability to apply simple ideas in quantum theory to solve a variety of physical problems.

Learning outcomes

This course unit detail provides the framework for delivery in 20/21 and may be subject to change due to any additional Covid-19 impact.  Please see Blackboard / course unit related emails for any further updates.

On completion successful students will be able to:

  1. define the notion of an inertial frame and the concept of an observor. 
  2. state the principles of Special Relativity and use them to derive time dilation and length contraction. 
  3. perform calculations using the Lorentz transfornation formulae
  4. define relativistic energy and momentum, and use these to solve problems in mechanics. 
  5. perform calculations using four-vectors. 
  6. use the ideas of a wave-particle duality and the uncertainty princple to solve problems in quantum mechanics. 
  7. perform calculations using the quantum wave function of a particle moving in one dimension, including making use of the momentum operator. 
  8. use the Bohr formula to calculate energies and wavelengths in the context of atomic hydrogen. 

Syllabus

 

Relativity

 

  • Galilean relativity, inertial frames and the concept of an observer.
  • The principles of Einstein’s Special Theory of Relativity
  • Lorentz transformations: time dilations and length contraction.
  • Velocity transformations and the Doppler effect.
  • Spacetime and four-vectors.
  • Energy and momentum with applications in particle and nuclear physics.

 

Quantum Physics

  • Basic properties of atoms and molecules. Atomic units. Avogadro’s number.
  • The wavefunction and the role of probability.
  • Heisenberg’s Uncertainty Principle and the de Broglie relation.
  • The momentum operator and the time-independent Schrödinger equation: the infinite square well.
  • Applications in atomic, nuclear and particle physics: energy levels and spectra and lifetimes.

Assessment methods

Method Weight
Other 10%
Written exam 90%

Feedback methods

Feedback will be offered by tutors on students’ written solutions to weekly examples sheets, and model answers will be issued.

Recommended reading

Recommended text

Forshaw, J.R. & Smith, G, Dynamics & Relativity (John Wiley & Sons)

Young, H.D. & Freedman, R.A., University Physics (Addison-Wesley)

 

Supplementary texts:

Cox, B.E. & Forshaw, J.R. Why does E=mc²? (and why should we care?) (Da Capo)

Cox, B.E. & Forshaw, J.R. The Quantum Universe (Allen Lane)

Rindler, W. Relativity: Special, General & Cosmological (Oxford)

Study hours

Scheduled activity hours
Assessment written exam 1.5
Lectures 22
Tutorials 6
Independent study hours
Independent study 70.5

Teaching staff

Staff member Role
Jeffrey Forshaw Unit coordinator
Brian Cox Unit coordinator

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