688 search results for “cosmological perturbation theory” in the Public website
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Gell's theory of art as agency and living presence response
Subproject of
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Livestream: Sean Carroll gives Ehrenfest Colloquium
On Wednesday September 26th, theoretical physicist Sean Carroll will give an Ehrenfest colloquium. It is part of a lecture series that has been running since 1912 and was founded by physicist Paul Ehrenfest.
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believe it! A global perspective on cognitive reflection and conspiracy theories about COVID-19 pandemic
Together with two other authors, Jaroslaw Kantorowicz from ISGA investigates the susceptibility to believing in misinformation.
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Diphthongs': A Test Case for Experimental Phonetics and Phonological Theory
This thesis investigates durational aspects of the Italian mobile diphthongs with respect to other rising diphthongs and monophthongs and it shows to what extent the monophthong/diphthong alternation still occurs in contemporary Italian.
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Spinoza's Theory of Religion: The Importance of Religion in Spinoza's Thought and Its Implications for State and Society
On 23 October 2019, Yoram Stein defended his thesis 'Spinoza's Theory of Religion: The Importance of Religion in Spinoza's Thought and Its Implications for State and Society'. The doctoral research was supervised by Prof. P.B. Cliteur and Prof. A.A.M. Kinneging.
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The Influence of Fichte’s Theory of Self-consciousness on Kierkegaard's Notion of the Self
The central subject of this dissertation is the influence of Fichte’s theory of self-consciousness on Søren Kierkegaard's philosophical notion of the self in the way Kierkegaard describes the self in his philosophy in the writing 'The Sickness unto Death' (1849). The main question this dissertation…
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Star formation and aging at cosmic noon: the spectral evolution of galaxies from z=2
Promotores: Prof.dr. M. Franx & Prof.dr. P.G. van Dokkum (Yale University)
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Star-Forming Galaxies at the Cosmic Dawn
Promotor: Prof.dr. M. Franx, Co-Promotor: Rychard Bouwens
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Lines in the sand: behaviour of self-organised vegetation patterns in dryland ecosystems
Vast, often populated, areas in dryland ecosystems face the dangers of desertification.
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The Animated Image. Roman Theory on Naturalism, Vividness and Divine Power
The Animated Image addresses the entire range of contexts in which images were described by Roman authors as being animated, as well as the accounts that Roman writers produced to explain the animation of inanimate matter.
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Focal-plane wavefront sensors for direct exoplanet imaging: Theory, simulations and on-sky demonstrations
One of the key limitations of the direct imaging of exoplanets at small angular separations are quasi-static speckles that originate from evolving non-common path aberrations (NCPA) to which the primary adaptive optics system is inherently blind. The main focus of this thesis is the development and…
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Physical reality of string theory demonstrated
String theory has come under fire in recent years. Promises have been made that have not been lived up to. Leiden theoretical physicists have now for the first time used string theory to describe a physical phenomenon. Their discovery has been reported this week in 'Science'.
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Periodic pulse solutions to slowly nonlinear reaction-diffusion systems
Promotor: A. Doelman, Co-promotor: J.D.M. Rademacher
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Higgs dynamics in the early universe
In the early universe, the dynamics of the Higgs field can give rise to many interesting phenomena.
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Development of the Pivot State Concept Based on Mackinder’s Heartland Theory
The research addresses the question of “what is the impact of geopolitical changes to the pivot states in the Middle East? With special focus on Turkey, Iran and Saudi Arabia.”
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Building a Phonological Inventory - Feature Co-occurrence Constraints in Acquisition
The Feature Co-occurrence Constraint theory proposed in this dissertation provides a means to capture the development of the language learning child's segment inventory.
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The connection between mass and light in galaxy clusters
Promotor: Koen Kuijken Co-promotor: Henk Hoekstra
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Early death of massive galaxies in the distant universe
Promotor: M. Franx, Co-Promotor: I.F. Labbé
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Philosophy in sound: The aesthetic theories of Moses Mendelssohn and Johann Georg Sulzer in the Berlin salon music of the 1750–80’s
My research focuses on theories of the sublime by the Berlin Enlightenment philosophers Moses Mendelssohn (1729–86) and Johann Georg Sulzer (1720–79).
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Mitochondria in chemical-induced toxicity
Chemical-induced organ toxicity is a major concern in the development and use of chemicals, including drugs, pesticides, industrial chemicals and cosmetics. In the last decades, the onset and progression of chemical-induced organ toxicity has been linked amongst others to perturbation of mitochondri…
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Investment Treaty Tribunals: The Partial Revival of the Localisation Theory
On 19 December 2019, Reza Eftekhar defended his thesis 'The Role of the Domestic Law of the Host State in Determining the ratione materiae Jurisdiction of Investment Treaty Tribunals: The Partial Revival of the Localisation Theory'. The doctoral research was supervised by Prof. E. de Brabandere.
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Mind in Practice : A Pragmatic and Interdisciplinary Account of Intersubjectivity
This book is about what happens when two people meet. Its main aim is to present an account of intersubjectivity.
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A glance at Cosmology
Lecture, Tatiana Afanassjewa-lezing
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Probing the darkness: the link between baryons and dark matter
Promotor: Prof.dr. J. Schaye, Co-promotor: Marcello Cacciato
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Admission requirements
To be eligible for Research in Physics, Cosmology at Leiden University, you must meet the following admission requirements.
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Barbarian: Explorations of a Western Concept in Μodern Theory, Literature and the Arts. Vol. 1: From the Enlightenment to the Turn of the Twentieth
Barbarism: from the 18th century to the present.
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Using Rhetorical Structure Theory for contrastive analysis at the micro and macro levels of discourse: An investigation of Japanese EFL learners’
On March 12th, Jonathan Brown succesfully defended his doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Jonathan on this great result.
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Zeynep Anli
Faculteit der Sociale Wetenschappen
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Threat of conspiracy theories limited
The risk that conspiracy theories could incite a broad movement against the established political order is virtually non-existent. This is what researcher Jelle van Buuren of the Institute of Security and Global Affairs concluded in his PhD dissertation.
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Charlene Kalle
Science
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Michael Keane
Science
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Floske Spieksma
Science
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Luca Avena
Science
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Evgeny Verbitskiy
Science
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Oortlecture 'Limits of Cosmology'
Lecture
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Dylan Gonzalez Arroyo
Science
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Koenraad Schalm
Science
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Frank den Hollander
Science
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Programme structure
You have ample opportunity to assemble your own study path in Cosmology. The courses cover the full spectrum from theoretical early universe to observational cosmology.
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Zhong Chua
Faculty of Humanities
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Matthew Longo
Faculteit der Sociale Wetenschappen
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René van der Veer
Faculteit der Sociale Wetenschappen
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Gerhard-Jan Nauta
Faculty of Humanities
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Alessandra Silvestri Group (the Late Universe)
We are cosmologists, in other words we use physics to study the Universe, how it started and evolved into the structure that we observe around us.
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Galaxy formation traced by heavy element pollution
Galaxies form and evolve through close interaction with their surroundings. As a result, the heavy elements ('metals') that are synthesized in stars, are found both inside and outside galaxies.
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Cosmological interpretation of architecture
PhD Defence
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Alexey Boiarskyi appointed full professor
Theoretical physicist and cosmologist Alexey Boiarskyi has been appointed full professor per 1 October.
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Geometry in ornament: On the history, theory and science about the presumed universality of geometrical patterns and its cognitive foundation
Knowledge and culture subproject 3:
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Identifying the origins of galaxy formation
This thesis investigates how galaxies form and what diversifies the evolutionary histories of galaxies.
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Serge Fehr appointed as Professor Quantum information theory
As of 1 June, Serge Fehr has been appointed as Professor Quantum information theory at the Leiden Mathematical Institute (MI). Fehr is employed by Centrum Wiskunde & Informatica (CWI) and as of his appointment works one day a week at the MI. Fehr’s research is focused on quantum cryptology and will…