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totalt 45 träffar
Enhanced Polarisation Control and Extreme Electric Fields
This thesis reports advances in terahertz time-domain spectroscopy, relating to the development of new techniques and components that enhance the experimentalist’s control over the …
Exciton Dynamics in Lead Halide Perovskite Nanocrystals
Less than a decade ago, lead halide perovskite semiconductors caused a sensation: Solar cells exhibiting astonishingly high levels of efficiency. Recently, it became possible to …
Electrical Control and Quantum Chaos with a High-Spin Nucleus in Silicon
Nuclear spins are highly coherent quantum objects that were featured in early ideas and demonstrations of quantum information processing. In silicon, the high-fidelity coherent …
Effects of Non-locality in Gravity and Quantum Theory
This thesis is devoted to the systematic study of non-local theories that respect Lorentz invariance and are devoid of new, unphysical degrees of freedom. Such theories are …
Geometric Approaches to Quantum Field Theory
The ancient Greeks believed that everything in the Universe should be describable in terms of geometry. This thesis takes several steps towards realising this goal by introducing …
General Relativistic and Post-Newtonian Dynamics for Near-Earth Objects and Solar System Bodies
Owing to the increased accuracy requirements in fields such as astrometry and geodesy the general theory of relativity must be taken into account for any mission requiring highly …
On Exciton–Vibration and Exciton–Photon Interactions in Organic Semiconductors
What are the physical mechanisms that underlie the efficient generation and transfer of energy at the nanoscale? Nature seems to know the answer to this question, having optimised …
Search for tt¯H Production in the H ? bb¯ Decay Channel
In 1964, a mechanism explaining the origin of particle masses was proposed by Robert Brout, François Englert, and Peter W. Higgs. 48 years later, in 2012, the so-called Higgs boson …
Classical and Quantum Description of Plasma and Radiation in Strong Fields
This thesis presents several important aspects of the plasma dynamics in extremely high intensity electromagnetic fields when quantum electrodynamics effects have to be taken into …
Patterns of Synchrony in Complex Networks of Adaptively Coupled Oscillators
The focus of this thesis is the interplay of synchrony and adaptivity in complex networks. Synchronization is a ubiquitous phenomenon observed in different contexts in physics, …
A Cartographic Analysis of Soviet Military City Plans
The collapse of the Soviet Union has seen the emergence of its unprecedentedly comprehensive global secret military mapping project and the commercial availability of a vast number …
sEMG-based Control Strategy for a Hand Exoskeleton System
This book reports on the design and testing of an sEMG-based control strategy for a fully-wearable low-cost hand exoskeleton. It describes in detail the modifications carried out …