Defence in the field of engineering physics, Konstantin Tiurev, M.Sc.

2017-09-21 12:00:00 2017-09-21 23:59:50 Europe/Helsinki Defence in the field of engineering physics, Konstantin Tiurev, M.Sc. The title of the dissertation is: Quantum Knots and Monopoles http://sci.aalto.fi/en/midcom-permalink-1e787f46ff8f79e87f411e7ade849a160f631e431e4 Otakaari 1, 02150, Espoo

The title of the dissertation is: Quantum Knots and Monopoles

21.09.2017 / 12:00
Lecture hall H304, Otakaari 1, 02150, Espoo, FI

Konstantin Tiurev, M.Sc., will defend the dissertation "Quantum Knots and Monopoles" on 21 September 2017 at 12 noon in Aalto University School of Science, lecture hall H304, Otakaari 1, Espoo. In this dissertation, we investigate the creation, stability, and dynamical properties of various topological defects in spinor Bose–Einstein condensates. Many theoretical predictions are confirmed by the very good agreement with experiments, including the first observations of quantum-mechanical knots and monopoles.

Since their experimental discovery in 1995, dilute Bose–Einstein condensates have proven to be excellent platforms for studying interacting many-body quantum systems. They can emulate complicated models that arise in atomic, condensed-matter, and even particle physics, allowing realizations of exotic phenomena that are elusive in their original contexts. An outstanding example is the existence of various topological defects in ultacold quantum gases with internal degrees of freedom.

In this dissertation, we investigate the creation, stability, and dynamical properties of various topological defects in spinor Bose–Einstein condensates. Many theoretical predictions are confirmed by the very good agreement with experiments, including the first observations of quantum-mechanical knots and monopoles. This thesis lays the foundation for studies of the dynamics and stability of three-dimensional topological structures in quantum systems.

Dissertation release (pdf)

Opponent: Adjunct Professor Ian B. Spielman, Joint Quantum Institute, USA

Custos: Professor Päivi Törmä, Aalto University School of Science, Department of Applied Physics