37 search results for “Microwaves” in the Public website
-
Master Projects
The following master research projects are currently available.
-
Setup: MRFM
MRFM combines the principles of magnetic resonance and atomic force microscopy.
-
Laser-generated toroidal helium plasmas
This dissertation is an experimental study of laser-generated, atmospheric pressure, transient toroidal helium plasmas.
-
Smoothly breaking unitarity : studying spontaneous collapse using two entangled, tuneable, coherent amplifiers
The Copenhagen interpretation of quantum mechanics states that a measurement collapses a wavefunction onto an eigenstate of the corresponding measurement operator.
-
Dynamic Nuclear Polarization agents
Dynamic nuclear polarization with paramagnetic agents can enhance nuclear magnetic resonance signals by orders of magnitude. The mechanism of enhancement depends a.o. on the magnetic resonance properties of the agents used. Electron spin relaxation times at NMR relevant magnetic field/microwave frequencies,…
-
Weighing the Dark: Cosmological Applications of Gravitational Lensing
Promotor: K. Kuijken, Co-Promotor: H. Hoekstra
-
Subodh Patil Group - Particle Cosmology
Our research primarily focuses on the early universe and its origins in theories that go beyond the Standard Model of particle physics.
-
A search for transient reductions in the speed of sound of the inflaton in cosmological data, and other topics
Promotor: Prof.dr. A. Achucarro
-
Effects of heavy fields on inflationary cosmology
Promotor: Prof.dr. A. Achucarro, Co-Promotor: J.W. van Holten
-
Election debate Student Council: catering, accessibility, and well-being
The student elections for the student representatives of the Faculty Council will take place from 22 to 25 April. Prominent members of four student parties engaged in a debate last Thursday on topics close to students’ hearts.
-
Probing new physics in the laboratory and in space
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.
-
Enlightening the Primordial Dark Ages
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”.
-
Ana Achúcarro Group - The Early Universe
We explore the particle physics and quantum world at the time of the big bang.
-
Michiel de Dood Lab - Quantum Detection
Our group explores the larger domain of quantum measurement. In particular we investigate two themes that are closely connected: The detection of specially prepared quantum states of light and understanding and characterizing quantum photon detectors.
-
Overcoming the Debye screening length with radiofrequency-operated graphene biosensors
Can a proposed new radiofrequency approach to graphene biosensors lead to groundbreaking changes in genome mapping?
-
Electronics Department
What is the Electronics Department?
-
Chasing Schrödinger's cat
Schrödinger's cat is famously dead and alive, hidden in its closed box. As soon as one opens the box up to peek inside, the cat suddenly turns dead or alive. This is the 'measurement problem', that has stumped physicists for almost a century now. PhD student Tom van der Reep dared to look for a way…
-
Leiden University launches MULTIPLY platform to integrate information by newest ESA-satellites for earth observation
The Institute of Environmental Sciences of the Leiden University has, together with its European partners, presented the new MULTIPLY platform, during a workshop at the European Space Agency (ESA). This platform makes it for the first time possible to combine different data stream’s of ESA’s newest…
-
New dataset helps to understand environmental impact of offshore windfarms
While offshore wind farms generate clean and green energy, scientists are becoming increasingly aware of the harmful impact they may have on marine life. To get a better overview of these impacts and to find the best locations for future wind farms, environmental scientist Yali Si and her colleagues…
-
Physics Nobel Prize for former Leiden Lorentz Professor
The 2017 Nobel Prize in Physics has been awarded to Rainer Weiss, Barry Barish and Kip Thorne for their work on the measurement of gravitational waves. Thorne was Lorentz Professor in 2009 in Leiden. Physicist Jan Willem van Holten explains why this is such an important discovery. ‘A new branch of astrophysics…
-
Galaxy in the early Universe contains carbon after all
In 2015, Jorryt Matthee thought he discovered an extremely distant galaxy called CR7, which lacked elements heavier than helium. Three years later, he shows with measurements using the ALMA telescope that the galaxy does have carbon after all, and even in normal concentrations. The American Astronomical…
-
Tom van der Reep
Science
-
Michel Orrit Wins Edison Volta Prize
The European Physical Society has awarded the prestigieus Edison Volta Prize to Leiden physicist Michel Orrit. The prize is handed out every two years to an individual or a group of at most three scientists as an acknowledgment of an outstanding achievement in physics research.
-
Behind the scenes on the Big Bang Theory
‘I got into Nature last year, I was nominated for a faculty teaching award and my kids don’t care. But if your simulations get on The Big Bang Theory then that’s something!’ says Huib van Langevelde.
-
The hunt for the quantum collapse
The most famous cat in science is Schrödinger's cat, the quantum mechanical mammal, which can exist in a superposition, a state that is alive as well as dead. The moment you look at it, one of both options is chosen. Leiden University physicists simulated an experiment to catch this mysterious moment…
-
In Memoriam - Joan van der Waals
On 21 June, our beloved colleague Joan van der Waals passed away after a long and rewarding life.
-
How an Alzheimer related protein forms plaques
Neurological diseases, such as Alzheimer's disease, are characterised by aggregates of protein in the brain. The connection of these aggregates to the disease itself is unclear. Martina Huber, Enrico Zurlo and colleagues published a new method to monitor the formation of these aggregates.
-
Chris Smiet wins Christiaan Huygens prize
Christopher Berg Smiet, who defended his thesis at LION with Dirk Bouwmeester, won the Christiaan Huygens prize for his thesis '‘Knots in Plasma’. On 7 October, he received a certificate, a bronze statuette and ten thousand euros.
-
New spinoff company to solve major roadblock in the quantum revolution
Physicist Kaveh Lahabi’s research on quantum materials led to the launch of a new company: QuantaMap. With his colleagues, he developed a sensor that will improve the production of quantum computer chips. ‘It turns out that what I need for my fundamental physics research is also very useful for the…
-
Meet this year's Lorentz Professor Renata Kallosh: 'Lorentz is my hero in physics'
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…
-
In memoriam emeritus professor Jan Schmidt
On March 17, our dear colleague Jan Schmidt passed away after a fruitful and valuable life.
-
FLAMINGO: dark matter, ordinary matter, and neutrinos in the biggest cosmological simulation ever
Not only dark matter, but also ordinary matter and dark energy are tracked in the largest ever cosmological computer simulation ever. In the FLAMINGO simulations, you can see virtual galaxies and clusters of galaxies emerging over the course of billions of years. This is no easy task: with more than…
-
Gravitational Lenses measure Universe Expansion
It's one of the big cosmology debates: the universe is expanding, but how fast exactly? Two available measurements yield different results. Leiden physicist David Harvey adapted an independent third measurement method, using the light warping properties of galaxies predicted by Einstein. He published…
-
‘Once you really learn to listen, a whole new world opens up’
Marcel Cobussen, professor of Auditory Culture and Music Philosophy, has made listening his speciality. From the sounds of a microwave to chirruping birds, he studies how people treat noise in their environment and what kind of information sounds can give. His mission: to teach people to listen better…
-
Uncovering the Secrets of the Universe with Observational Cosmology
Lecture
-
Lending an Ear to Students’ Life in the Pandemic
At the end of a difficult year, students of ACPA’s Music Minor have put together “sonic postcards” to capture their experience of life under Covid restrictions. The result is a powerful, intimate statement about our pandemic fears and hopes.
-
Joan van der Waals colloquium
The Joan van der Waals colloquium is an ongoing bi-weekly lecture series.