# Module Catalogue

Throughout the 2020-21 academic year, we will be adapting the way we teach and assess your modules in line with government guidance on social distancing and other protective measures in response to Coronavirus. Teaching will vary between online and on-campus delivery through the year, and you should read guidance from the academic department for details of how this will work for a particular module. You can find out more about the University’s overall response to Coronavirus at: https://warwick.ac.uk/coronavirus.

# PX267-7.5 Hamiltonian Mechanics

Department
Physics
Level
James Lloyd-Hughes
Credit value
7.5
Module duration
10 weeks
Assessment
100% exam
Study location
University of Warwick main campus, Coventry

##### Introductory description

This module introduces the Hamiltonian formulation of classical mechanics. This elegant theory has provided the natural framework for several important developments in theoretical physics including quantum mechanics. The module starts by covering the general "spirit" of the theory and then goes on to introduce the details.

The module uses a lot of examples. Many of these should be familiar from earlier studies of mechanics while others, which would be much harder to deal with using traditional techniques, can be dealt with quite easily using the language and methods of Hamiltonian mechanics.

##### Module aims

To revise the key elements of Newtonian mechanics and use this to motivate and then develop Lagrangian and Hamiltonian mechanics

##### Outline syllabus

This is an indicative module outline only to give an indication of the sort of topics that may be covered. Actual sessions held may differ.

1. Introduction. Analogy with optics and constructive interference; principle of least action; examples of L: T-V, -mc2/γ

2. Euler Lagrange Equations. 1-d trajectory, T-V case, worked examples; T+V as a constant of the motion; multiple coordinates with examples

3. Generalised coordinates and canonical momenta. Polar coordinates; angular momentum; moment of inertia of rigid bodies; treatment of constraints; examples

4. Symmetry and Conservation Laws

5. Hamiltonian formulation. Hamilton's equations, phase space, examples

6. Normal Modes and Small Oscillations. Inertial and stiffness matrices, diatomic and triatomic molecules

##### Learning outcomes

By the end of the module, students should be able to:

• Explain the significance of the Lagrangian and Hamiltonian
• Derive and solve the Euler-Lagrange equations for simple models
• Find the canonical momenta in a mechanical system and construct the Hamiltonian function
• Derive and solve Hamilton's equations for simple systems
• Explain the role of (and relations between) constraints, conserved quantities and generalised coordinates

A good text going well beyond the module is H Goldstein, Classical Mechanics;
A helpful reference for the beginning of the module is: Feynmann, Leighton & Sands, The Feynmann Lectures on Physics, Vol 2, Chapter 19

##### Interdisciplinary

The Hamiltonian and Lagrangian formulations of mechanics use ideas from mathematics - variational methods and symplectic structures. These mathematical methods can lead to valuable conceptual understanding as well as more elegant methods for solving (and approximately solving) problems in mechanics. This module is taken by many mathematics and physics students.

##### Subject specific skills

Knowledge of mathematics and physics. Skills in modelling, reasoning, thinking

##### Transferable skills

Analytical, communication, problem-solving, self-study

## Study time

Type Required
Lectures 20 sessions of 1 hour (27%)
Private study 55 hours (73%)
Total 75 hours
##### Private study description

Working through lecture notes, solving problems, wider reading, discussing with others taking the module, revising for the exam, practising on past exam papers

## Costs

No further costs have been identified for this module.

You must pass all assessment components to pass the module.

##### Assessment group B1
Weighting Study time
2 hour online examination (Summer) 100%

• Online examination: No Answerbook required
##### Feedback on assessment

Personal tutor, group feedback

## Courses

This module is Option list A for:

• Year 2 of UPXA-FG33 Undergraduate Mathematics and Physics (BSc MMathPhys)
• Year 2 of UPXA-GF13 Undergraduate Mathematics and Physics (BSc)
• Year 2 of UPXA-FG31 Undergraduate Mathematics and Physics (MMathPhys)
• Year 2 of UPXA-F304 Undergraduate Physics (BSc MPhys)
• Year 2 of UPXA-F300 Undergraduate Physics (BSc)
• Year 2 of UPXA-F303 Undergraduate Physics (MPhys)
• Year 2 of UPXA-F3F5 Undergraduate Physics with Astrophysics (BSc)
• Year 2 of UPXA-F3FA Undergraduate Physics with Astrophysics (MPhys)

This module is Option list B for:

• Year 2 of UMAA-G105 Undergraduate Master of Mathematics (with Intercalated Year)
• Year 2 of UMAA-G100 Undergraduate Mathematics (BSc)
• Year 2 of UMAA-G103 Undergraduate Mathematics (MMath)
• Year 2 of UMAA-G106 Undergraduate Mathematics (MMath) with Study in Europe