Waveguide Quantum Electrodynamics in Superconducting Circuits
Licentiate thesis, 2019
In the appended paper, we investigate the spontaneous emission of an initially excited artificial atom (superconducting transmon qubit) which is capacitively coupled to a semi-infinite transmission line (atom in front of a mirror). We can choose the distance to the mirror arbitrarily so the interaction with the reflected field is delayed if the qubit is far away from the mirror and we have to take time-delay effects into account. We derive equations of motion for the transmon by circuit quantization and solve them semi-classically. In this thesis we give an introduction to circuit quantization, transmission lines and superconducting qubits. Then we discuss the methods and results of the appended paper which are based on the topics introduced.
Superconducting Qubits
Artificial Atoms
Waveguide Quantum Electrodynamics
Circuit Quantum Electrodynamics
Quantum Optics
Author
Emely Wiegand
Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics
Areas of Advance
Nanoscience and Nanotechnology (SO 2010-2017, EI 2018-)
Subject Categories
Other Mathematics
Other Physics Topics
Condensed Matter Physics
Publisher
Chalmers
Kollektorn, MC2, Kemivägen 9, Chalmers
Opponent: Witlef Wieczorek, Quantum Technolgy Laboratory