Promotor: A. Achúcarro, Co-Promotor: G.A. Palma

This thesis is about cosmological inflation and its relation to observations.

This thesis is dedicated to the exploration of the primordial dark ages: unknown physics during the earliest stages of the Universe’s expansion that have not yet been directly probed by observations. Cosmic inflation is a burst of exponential expansion of space after the “Big Bang”.

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

Promotie

Eurostat, the European statistical office, reports that inflation in the Eurozone has increased to 4.1 per cent. What are the implications for your wallet and your savings? And how can consumers respond?

Promotor: Prof.dr. A. Achucarro, Co-Promotor: J.W. van Holten

Promotor: Prof.dr. A. Achucarro

Sebastian Diessner, associate professor at the FGGA, recently appeared in an article called 'Inflation: a spring remontée des taux se dessine' (Inflation: a slow rise in rates is emerging) in the newspaper Le Figaro.

We explore the particle physics and quantum world at the time of the big bang.

Promotie

In the early universe, the dynamics of the Higgs field can give rise to many interesting phenomena.

Our research primarily focuses on the early universe and its origins in theories that go beyond the Standard Model of particle physics.

In this article, Makszin developed a conceptual framework for the operating mission of an independent Central Bank and traced changes in the operating mission of the Hungarian National Bank over its recent 27-year history together with Sebők and Simons. This study aims to understand the dynamics of…

On 27 June 2019, Barry Bussey defended his thesis 'The Legal Revolution Against the Accommodation of Religion: The Secular Age v. The Sexular Age'. The doctoral research was supervised by Prof. dr. P.B. Cliteur.

For thousands of years bloodlines have been held as virtually unassailable credentials for leadership, with supreme political power perceived as a family affair across the globe and throughout history. At the heart of royal dynasties, kings were inflated to superhuman proportions, yet their status came…

Lezing

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.

Recently, Ingrid Leijten’s book Core Socio-Economic Rights and the European Court of Human Rights was published with Cambridge University Press. The monograph was published in the series Cambridge Studies in European Law and Policy (edited by Laurence Gormley and Jo Shaw) and deals with the protection…

As part of his guest professorship in Leiden, famous theoretical physicist Prof. Andrei Linde (Stanford University) gave a public lecture on June 23 at the prestigious Leidse Schouwburg in the historic city center. Linde is world-renowned for being one of the inventors of the theory of inflation, which…

On Thursday 15 February 2018, the Hazelhoff Centre for Financial Law welcomed Roel Janssen, financial and economic journalist and writer, for the fifteenth Hazelhoff Guest Lecture.

The master's specialisation Astronomy and Cosmology at Leiden University covers all aspects of modern astrophysics, including observation, interpretation, simulation and theory. This programme is essentially based on combined research in astronomy and physics and is therefore open for students with…

On Wednesday February 7th, Professor Ed Copeland from the University of Nottingham will give the Colloquium Ehrenfestii.

The Social Assistance and Minimum Income Levels and Replacement Rates Dataset, assembled by Jinxian Wang and Olaf van Vliet (version December 2016), provides data on minimum income benefit schemes in 33 countries from 1990 until 2009.

The Academic Language Centre provides a wide range of English courses. The courses differ with regard to level, content and frequency.

Behavioural biologist Wouter Halfwerk has been awarded a 2-year outgoing Rubicon-grant from NWO. He will be working at the Smithsonian Tropical Research Institute with bats and frogs to understand the evolution of multimodal communication.

What is dark matter? How do supermassive black holes form? ‘Primordial’ black holes might hold the answer to these long-standing questions. Leiden and Chinese cosmologists have identified a new way in which these hypothetical objects could be produced just after the Big Bang. Publication in Physical…

Jorinde van de Vis wins the For Women in Science Rising Talent-prize for women in science, for her PhD thesis in cosmology and particle physics.

On Sunday 28 October, the annual open day of the Old Observatory in Leiden takes place. During this day everyone can visit the Old Observatory for free and enjoy activities in this historic building.

On Sunday 28 October, the annual open day of the Old Observatory in Leiden takes place. During this day everyone can visit the Old Observatory for free and enjoy activities in this historic building.

The focus of the new Business Studies' Chair is on academic business research, in particular related to consumer pricing and its legal implications. “Product and services pricing are a vital aspect of society, and thus play an important role in the legal field”, says Professor of Business Studies at…

Professor Edmund Amann will be the new Professor of Brazilian Studies. A short introduction.

How do people living in a remote part of Northern Mongolia experience the post-socialist transition that occurred twenty years ago? Based on extensive fieldwork, cultural anthropologist Richard Fraser argues that this is not at all clear. In his PhD dissertation, he developed a new framework based on…

‘Hugo Chávez could gain an iconic status among left-wing groups in Latin America that is comparable with that of Che Guevara,’ says Patricio Silva, Professor of Modern Latin American History. ‘Latin America as a whole is beginning a new chapter in its history.’

Brazil is one of the world's largest emerging economies, but more is needed if it is to use this economic power for all parts of Brazilian society. This will be the subject of Professor of Brazilian Studies Edmund Amann's inaugural lecture on 20 November.

A full overview of all loans and debts between banks would help preventing a new financial collapse. But banks do not provide this information. An econophysics model by Diego Garlaschelli and collaborators reconstructs the most probable situation and finishes first place in two independent tests.

Professor Renata Kallosh (Stanford University), one of the world’s leading theoretical physicists, will be this summer’s Lorentz Professor at the Leiden institute for theoretical physics. Her main areas of interest are cosmology and string theory. She studied physics in Moscow, where she also obtained…

Those pesky raindrops that get you wet on your way to work, are formed high up in the sky from clouds of water vapour. The process of nucleation describes the way this happens. Edgar Blokhuis of the Leiden Institute of Chemistry developed a theory to describe this transition more precisely. Chemists…

University lecturer Tazuko van Berkel has obtained a Vidi grant of 800,000 euros. This will enable her to research the image of man that emerges from economic texts from ancient Greece.

Bringing Dutch and international students together. One way to do that is by playing Archery Attack, archaeology student Timothy Stikkelorum suggested. On 13 November, he and his team, a committee from the Terra study association, won the Van Bergen Prize with their idea.

Lezing, Studium Generale

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Kunst en vrije tijd, Kunst en vrije tijd