Swedish Physics Days 2025 in Luleå

13 Aug 2025, 09:00 → 15 Aug 2025, 18:00 Europe/Zurich

Luleå

 

 

 

Please find more information about the Swedish Physics Days 2025 at the conference homepage.

Here, in the menu to the left, you can find

1. schedule (continuously updated)
2. abstract submission
3. book of abstracts (continuously updated)

 

 

 

Wednesday 13 August

09:00 → 10:40 Section for education

09:00 Digitala nationella prov i fysik - Anna Lind Pantzare, Umeå universitet

09:00 → 10:40 Section meetings

11:00 → 11:45 Plenary lecture

11:00 Quantum Computing Based on Superconducting Qubits

Quantum computers are anticipated to solve certain computational tasks much faster than classical computers. In this talk, I will discuss the origins of quantum computing, explain the challenges involved in building a quantum computer, and explore their potential applications.

The fundamental building block of a quantum computer is the qubit, an individual quantum system that can exist in a superposition of two states. This means a single qubit can represent both 0 and 1 simultaneously. Consequently, a register of $N$ qubits can represent 2$^N$ numbers simultaneously, enabling massive parallelism that can be harnessed for simulation and computation.

Qubits can be realised using various technologies. In this talk, I will focus on computers built from superconducting qubits and describe the quantum computer that is being built at Chalmers.

Speaker: Per Delsing (Chalmers University of Technology)

11:45 → 13:00 Lunch

13:00 → 13:45 Plenary lecture

13:00 Molecular spectroscopy with optical frequency combs

Optical frequency combs are lasers whose spectra consist of hundreds of thousands of evenly spaced narrow lines spanning a broad spectral range. This unique combination of high spectral resolution and wide bandwidth has revolutionized molecular spectroscopy. Our group uses frequency combs to probe the energy level structure of molecules relevant to astrophysics, such as methane - the first organic molecule detected in the atmosphere of a hot-Jupiter exoplanet. The vibrational energy level structure of this small polyatomic molecule is complex and remains incompletely characterized. I will show how frequency comb double-resonance spectroscopy combined with ab initio calculations provides unique information about highly excited vibrational levels of methane, which is essential for modeling of high-temperature spectra observed in astrophysics.

Speaker: Aleksandra Foltynowicz (Umeå University)

14:00 → 16:00 Section for atomic, molecular and optical physics: (Chair: Aleksandra Foltynowicz, Umeå University)

14:00 Welcome and short introduction

Speaker: Aleksandra Foltynowicz (Umeå University)

14:15 Keynote: Laser remote microscopy for insect diversity assessment

Speaker: Mikkel Brydegaard (Lund University)

15:00 Ion chemistry and isomers on Titan and their application for military defense

Speaker: David Sundelin (Stockholm University)

15:15 Coherent Raman spectroscopy for brain tumor detection: Photon-mater interactions as optical biomarkers in neurosurgery

Speaker: Dirce Pineda Vazquez (Luleå University of Technology)

15:30 Submitted talk

15:45 Submitted talk

14:00 → 16:00 Section for education

14:00 Presentation/rundabordssamtal om det pedagogiska samarbetet - Elisabeth Nilsson, Nationellt resurscentrum för fysik

14:00 → 16:00 Section meetings

16:30 → 17:30 Lab tour

16:30 → 18:00 Poster session

18:30 → 21:00 Conference dinner

Thursday 14 August

09:00 → 10:30 Section for atomic, molecular and optical physics: (Chair: Magnus Gustafsson, Luleå University of Technology)

09:00 Boosting carbonaceous research using advanced light sources in Lund

Speaker: Thi Kim Cuong Le (Lund University)

09:30 High-resolution laser spectroscopy based on optical parametric oscillators

Speaker: Mitzi Urquiza (University of Gothenburg)

09:45 Driving molecular dynamics in cyclopropane by frequency tuning at the carbon 1s edge

Speaker: Ville Lindblom (Lund University)

10:00 Ab-initio cavity Born-Oppenheimer methods: How can strong light-matter coupling change chemistry?

Speaker: Thomas Schnappinger (Stockholm University)

09:00 → 11:00 Section for education

09:00 AI i fysikundervisning - Marcus Liwicki och Marcus Strömbäck Hjärne, Luleå tekniska universitet

09:00 → 10:40 Section meetings

11:00 → 11:45 Plenary lecture

11:00 The second AI revolution in fundamental science research

In 2012 machine-learning tools achieved paradigm-shifting performance in image classification, but 2012 was also the year when the LHC collider at CERN discovered the Higgs boson. For the first time, a new fundamental particle was discovered with explicit use of machine learning tools. While until then machine learning was frowned upon as a valid tool by the physics community, in 2012 -almost overnight- it became a necessary instrument for data analysis in fundamental science. I call that event the first AI revolution in fundamental science.

Today we are ready for a second revolution, which will allow artificial intelligence to assist in the E3design of the complex instruments required to investigate matter at the shortest distance scales, by providing means for continuous scanning of the very high-dimensional space of design solutions of particle detectors. In order for that to happen, physicists have to team up with computer scientists to create the necessary interfaces (simulation tools, dimensionality reduction methods, optimization algorithms). Of particular importance is the concept of co-design, where hardware and software are optimized together, avoid misalignments that reduce the final performance of the resulting data collection and reduction pipelines. In this presentation I will describe the state of the art in these activities.

Speaker: Tommaso Dorigo (Istituto Nazionale di Fisica Nucleare)

11:45 → 13:00 Lunch

13:00 → 13:45 Plenary lecture

13:00 Attosecond lasers

Ultrafast cameras, using ultrashort light flashes, allow the capture of ultrafast motion. In atoms or molecules, attosecond light pulses are needed to capture the motion of electrons (1 as = 10$^{-18}$ s). This presentation will highlight the physics behind the generation and application of attosecond light pulses.

Speaker: Anne L’Huillier (Lund University)

14:00 → 16:00 Section for atomic, molecular and optical physics: (Chair: Michael Odelius, Stockholm University)

14:00 Exploring protein molecular diffusion with coherent X-rays

Speaker: Anita Girelli (Stockholm University)

14:30 X-ray molecular spectroscopy studies for radiotherapy applications

Speaker: Ouassim Hocine Hafiani (Uppsala University)

14:45 Pump probe measurements on ultra strongly coupled exciton-cavity- polaritons

Speaker: Fritz Schnur (Umeå University)

15:00 Relativistic treatment of hole alignment and ultrafast photoionization in noble gases

Speaker: Rezvan Tahouri (Lund University)

15:15 Mutual neutralization with initial-state control

Speaker: Rachel Poulose (Stockholm University)

15:30 Submitted talk

15:45 Submitted talk

14:00 → 16:00 Section for education

14:00 Workshop om mätfelsbehandling på gymnasienivå - Lukasz Michalak, Nationellt resurscentrum för fysik

14:00 → 16:00 Section meetings

16:30 → 17:15 Plenary lecture

16:30 Can you learn by playing games?

Speaker: Erik Elfgren (Luleå University of Technology)

17:30 → 18:00 Swedish physical society annual meeting

18:00 → 18:45 Oseen medal award and presentation

Friday 15 August

09:00 → 11:00 Section for education

09:00 Workshop för lärare kring fysikinnehåll, didaktik/allmän/teknik/läroböcker

09:00 → 10:40 Section meetings

11:00 → 11:45 Plenary lecture

11:00 Post-Li batteries: An atomistic perspective

Li-ion batteries are dominating the market for high-performance batteries. However, so-called post-Li batteries in which Li is replaced by other charge carriers such as Na, K, Mg, Ca, Al and even Cl offer the potential for competitive energy densities, but being significantly more abundant. In this talk, I will give an overview over the advantages and also obstacles associated with post-Li batteries. I will also present successful research efforts improving the performance of post-Li batteries, often achieved by a close collaboration between experiment and theory on the atomic level.

Speaker: Axel Groß (Ulm University)

11:45 → 13:00 Lunch

13:00 → 13:45 Plenary lecture

13:00 Trapping particles: From research on anti-matter to teaching experimental physics in high-schools

We will in this talk describe and demonstrate the basic principles of traps with a discussion of similarities and difference between optical traps, acoustic traps and electro-magnetic traps. We will give examples of current research where traps are used, with trapping of antihydrogen as the most striking example. The presentation will also discuss various pedagogical suggestions on how traps can be used to demonstrate fundamental physical quantities and how this can be applied in upper secondary schools or in undergraduate classrooms. As examples, we will demonstrate charge quantization and how acoustic traps can be used to demonstrate wave physics.

Speakers: Dag Hanstorp (University of Gothenburg), Jonas Enger (University of Gothenburg)

14:00 → 17:30 Excursion