This doctoral thesis comprises four studies on the content and structure of physics teachers’ belief systems about teaching and learning physics in secondary education in the Netherlands.

In the spirit of 'unity in diversity', our objective is to promote insight into and appreciation for the wonder that the same physical laws and mathematical concepts apply to the whole of nature, from the largest to the smallest energy and length scales. We strive for the application of abstract theoretical…

Are you thinking about studying Physics? Learn more and watch the introduction video.

PhD candidates carry out a programme of independent research and additional (limited) course work, culminating in production of a PhD thesis in typically 4 years.

The master’s programme Physics at Leiden University offers a wide range of specialisations from theoretical research to cosmology. You will be trained for a career in research or for a more practical-oriented specialisation. The programme offers a wide choice of individual study paths that take into…

Studying Physics is an exciting journey through the foundations of nature: from the infinitesimal (particle physics) to the grandest scale (cosmology). Physics is a varied study programme that provides a solid foundation in theory and experimentation, with attention devoted to their practical applic…

Leiden has a strong tradition in theoretical physics, thoroughly linked with experimental disciplines.

The physics of black holes appears to be as far removed from the physics of electrons in metals as it can be.

How can we stay fit during hybrid working?

The Physics and Biological and Soft Matter master's specialisation is one of the two programmes that Leiden University offers in experimental physics. This programme mainly focuses on Biological Physics and Soft Matters Physics.

The master’s specialisation Physics and Education at Leiden University prepares you to teach the subject of physics to secondary school students. The programme comprises a one-year physics component, followed by an education component in the second year.

This is the physics summer school of Leiden University. It is part of the Leiden Institute of Physics (LION). The summer school is intended for Bachelor (BSc) students in physics. It covers topics from quantum matter and optics, to biological & soft matter physics and cosmology and theoretical physics.…

Physicists at the Leiden Institute of Physics (LION) conduct fundamental research into physical phenomena. They are inspired by curiosity and the desire to know more about the world in which we live. This research has always paved the way for new practical applications. These are something that the…

Research groups in the Biological & Soft Matter Programme unravel mechanisms in biological processes and develop novel bio-inspired soft materials.

The master’s specialisation Research in Theoretical Physics prepares you for a PhD position in theoretical physics. The research entails a broad range of topics including High Energy Physics and Particle Cosmology, Theoretical Physics of Life Processes and Condensed Matter Theory.

The master’s specialisation Physics and Science Based Business at Leiden University bridges science and business development by focusing on areas such as technology management, innovation, entrepeneurship, operations, and decision making.

Persistent somatic symptoms are long term symptoms that lack a clear medical explanation. These symptoms have a high prevalence where most people know someone who experiences such symptoms or they experience such symptoms themselves. Symptoms can vary greatly in and between people. While one person…

Research at the Leiden Institute of Physics (LION) is foundational and curiosity driven. All our scientists share a desire to increase the knowledge of the world around us, in an open atmosphere of inquiry from which innovative ideas emerge that provide applications and value for society.

The central inquiry of this thesis revolves around how ontology can adequately accommodate the existence of necessary physical relations. Initially, the thesis demonstrates the imperative acknowledgment of necessary physical relations by showcasing the failure of Neo-Humean theories.

The master’s specialisation Cosmology at Leiden University is positioned at the interface between Theoretical Physics and Observational Astronomy. The main elements are theory, data analysis and numerical simulations, with research on the origin of dark matter as one of the highlights.

Promotores: Prof.dr. D. Bouwmeester, Prof.dr. A. Fiore (TU Eindhoven)

In this thesis, we examine various systems through the lens of several numerical methods.

The master’s specialisation Physics and Science Communication and Society at Leiden University bridges the gap between experts and the public by combining high quality research in biology with extensive training in science communication.

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This master’s programme combines Physics with Data Science. You will learn how physics has its own tricks to deal with big data and how techniques from machine learning and deep learning can be applied to classical and quantum data. The first focus of attention is on classical data, including data mining,…

My work is motivated by the necessity to extend Standard Model of Particle Physics in order to explain three observed phenomena that this great theory fails to accommodate

Practical information about the physics summer school of Leiden University: the frontiers of modern physics. This page contains information about the cost and price of the summer school, the available scholarships, location, housing and the programme. This summer school is a part of the Leiden Insitute…

Shape and biological function are tightly connected. Physical descriptions are used to connect the shape of a biological system with its function.

The Tatiana Afanassjewa-lecture series is a series of public talks in Dutch by Leiden physicists on wednesday evenings, intended for everyone with an interest in physics.

This thesis contributes to studying primordial cosmology theories and their detectability in future observations.

Multiple stars, that is two or more stars composing a gravitationally bound system, are common in the universe.

This research revolves around the philosophical and linguistic elements that naturally belong to the process of learning music scores, including complex contemporary repertoire distinguished by physically decoupled notations or physical polyphonic notations.

The group Theoretical Physics of Life Processes, led by Helmut Schiessel, focuses on the physics of chromatin, the DNA-protein complex that fills the nuclei of eukaryotic cells.

The master’s specialisation Research in Physics, Quantum Matter and Optics at Leiden University offers a thorough experience on the front line of physics research with a practical training of communicative and computer skills. The programme focuses on Condensed Matter problems, such as Molecular Electronics,…

The Standard Model (SM) of particle physics fails to explain several observed phenomena and is incomplete. In order to resolve this problem, one may extend the SM by adding new particles.

Systems with local constraints is a new finding in recent researches on complex systems. The heterogeneous spatial interactions and the temporal dependencies among those numerous units make it difficult to describe by traditional statistical physics.

In our lab, we investigate the physics and material properties of low-dimensional systems.

Mashaghi lab conducts research at the interface of physics, engineering and biomedicine. We develop and use theoretical and experimental approaches to address basic and applied research problems.

It is the aim of this project to better understand how the physical properties of lipids influences the structure and overall barrier function of the skin.

This thesis discusses the discovery potential of Intensity Frontier experiments.

A dense region of a gaseous and dusty cloud collapses to form a protostar surrounded by a disk and an envelope. This thesis uses both observations and models to study physical and chemical conditions of these protostellar systems which are likely where planets start to form.