Quantum Information

 Text book

Preskill's book provides background and context to the material covered in the lectures and exercise classes. It also contains much additional material that goes beyond the course and will not be examinated.

 Exercises

problem sets 1-9

The exercise classes are the most important part of the course, and the three problem sets are representative for the written exam. Two problems in each set are marked as "homework". You are requested to submit your detailed solution of these two problems to the course assistants at the start of the class, who will then grade each with "pass" or "fail". Each "pass" gives you 1/6 of a bonus point for the written exam on 18 November, 2022.

old exams with answers

 Dates & Topics

Monday 5 September

9.00-11.00 (HL 207)

lecture 0: linear algebra refresher

linear algebra notes

Monday 12 September

9.00-11.00 (GB EM109)

lecture 1: qubits, Bloch sphere, fidelity, quantum gates (Pauli, Hadamard, Toffoli, CNOT), density matrix, pure vs. mixed states

Preskill 2.1-2.3, 4.1.1, 6.2.0 (you may skip 2.2.1, 2.2.2, 2.3.3) (lecture notes --- recording part a and recording part b)

Monday 12 September

11.00-13.00 (HL 414)

exercise class 0
linear algebra problem set

Monday 19 September

9.00-11.00 (GB EM109)

lecture 2: entanglement, Schmidt decomposition, concurrence, teleportation, Bell states, Bell inequality, no-cloning theorem

Preskill 2.4, 4.1, 4.2.3, 4.2.4 (lecture notes --- recording part a and recording part b --- Bell state notebook)

Monday 19 September

11.00-13.00 (HL 414)

exercise class 1
problems 1-3; homework 1e + 3e

Monday 26 September

9.00-11.00 (GB EM109)

lecture 3: quantum key distribution, quantum algorithms (Deutsch-Jozsa, Simon, Grover), quantum error correction

Preskill 4.2.2, 6.3-6.4, 7.1 (lecture notes --- recording part a and recording part b)

Monday 26 September

11.00-13.00 (HL 414)

exercise class 2
problems 4-6; homework 4c + 5a

Monday 10 October

9.00-11.00 (GB EM109)

excercise class 3
problems 7-9; homework 8e + 9c

Monday 10 October

11.00-13.00 (HL 414)

exercise class 3 (cont.)
problems 7-9

Exam: Friday 18 November 2022

9.00 - 12.00 hours (HL 211, HL 207)

Retake: Wednesday 18 January 2023

13.15 - 16.15 hours (HL 226)