# Advanced Quantum Electronics and Quantum-Information Theory

## Lecture details

The lecture will be given by Professor Wegewijs and Dr. Pletyukhov.

**Description:**

Quantum dots and superconducting junctions are basic elements of circuits for quantum electronics and quantum-information processing. This course provides an overview of key approaches for their theoretical description following two intertwined, parallel tracks:

Track 1 focuses on basic circuits and solves these using statistical / quantum-field techniques.

Track 2 develops the general theory of open quantum systems using the tools of quantum-information.

The course is self-contained for students with a solid background in quantum mechanics, statistical physics, and basics of quantum theory of many-particle systems.

*Track 1: *
*Quantum electronics: superconducting junctions and quantum dots*

- Quantization of electric circuits: charge and phase, reactive elements, fluctuations, noise

- Dissipative elements: open quantum systems, Caldeira-Legget model, dynamical Coulomb blockade

- Quantum field theory of transmission lines: microwave photons, input-output formalism

- Nonlinear elements: superconducting qubits, quantum-dot spin qubits

*Track 2: Quantum information: *
*open quantum systems*

- Entanglement, purification, quantum measurements

- Density operators: Hilbert-Schmidt / Liouville space

- Open-system dynamics: quantum operations / channels, superoperators, Kraus formalism, quantum master equations

- Approximate master equations: Lindblad, quantum jumps

- State-operation correspondence (Jamiolkowski-Choi)

- Graphical representations of superoperators

For more details, you can also refer to the university calender:

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Please note that the first lecture on Tuesday, April 10 begins at 1pm.
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Time | Room | Start/Finish |
---|---|---|

Tues. 12.30pm - 2pm |
4273 (MBP2 116) |
10.04.2018 - 17.07.2018 (13 dates) |

Wed. 12.30pm - 2pm | 4273 (MBP2 116) | 11.04.2018 - 18.07.2018 (13 dates) |

Thurs. 2pm - 3.30pm |
4273 (MBP2 116) | 12.04.2018 - 19.07.2018 (12 dates) |