Prof. Sandro Wimberger, leader of the Parma team, visited University of Otago Atomic Physics Laboratory of Prof. Mikkel Andersen in order to explore theoretical aspects of the experimental realization of cold atomic collisions and entanglement

03.02.2025 – 25.022025 and 05.03.2025 – 11.03.2025 Rita Veilande visited the experimental group led by Assoc. Prof. Mikkel Andersen of the University of Otago, the New Zealand partner in the HE-MSCA-SE Q-DYNAMO project. She was introduced to the experiments on the trapping and manipulating of individual rubidium atoms and the new experiment on the trapping of dysprosium (Dy) atoms with the aim of creating new substances at the atomic level. She was also introduced to the research of Assoc. Prof. Sandro Wimberger (University of Parma), who was also visiting the University of Otago at this time as one of the Q-DYNAMO partners.

R.Veilande learned methods for solving the master equation for a spin-entangled state in a magnetic field for 1D and 3D models, the applicability of the Born and Markov approximations.

She also briefly got acquainted with the experimental (Stuart Murdoch, Frederique Vanholbeeck and Maarten Hoogerland groups) and theoretical (Scott Parkins group) research at the University of Auckland in the field of atomic physics, photonics and quantum optics.

A lecture ‘Kicked Rydberg atoms and mathematical models of the photon’ was given as part of the 2nd workshop seminar of the Q-DYNAMO project.
All activities during the visit were within the framework of the project ‘Quantum dynamics control of atomic, molecular and optical processes’

During her secondment to the University of Electro-Communications (UEC) in Japan Dr. Kirova got acquainted with the optical nanofiber experiments performed at the Nayak lab and participated in discussions, where each team leader presented the research topics they are working on.
After searching the literature on WP3 ‘Experimental realization and control of quantum emitters’, she prepared a presentation for the students of the UEC team on optical nanofibers (ONFs) and many cooperative quantum effects of atoms near a nanofiber so that they could get better acquainted with the theoretical aspects of the topic.
Dr. Kirova derived the density matrix equations of motion in the bare and dressed states for two atoms near the ONF and this way participated in the Q-DYNAMO WP4 ‘Training activities’, transferring knowledge from the theoretical group in Riga to the experimental group in UEC.
She also attended the seminar of the Ulm group leader Prof. Denschlag, who was on a secondment to Tokyo University of Science at the same time and participated in discussions with the leaders of all groups about future research activities and mutual visits related to the implementation of the Q-DYNAMO project.

The leader of the Ulm group Prof. Denschlag visited Mark Sadgrove's lab at Tokyo University of Science to exchange experience on various aspects of WP3 Experimental realisation and control of quantum emitters.
During the Prof. Johannes Denschlag gave a seminar on 05.03.2025, presenting a hot research topic from the Ulm team ‘Demonstrating a beam splitter for a reaction pathway in the field of cold chemistry’. The event was attended by members of the TUS team, including other interested, including the project coordinator Dr. T. Kirova.

Teodora Velcheva Kirova