Quantum Entanglement of Complex Structures of Photons (repost)

Robert Fickler, "Quantum Entanglement of Complex Structures of Photons"


2015 | ISBN-10: 3319222309 | 104 pages | PDF | 5 MB

This thesis casts new light on quantum entanglement of photons with complex spatial patterns due to direct coincidence imaging. It demonstrates novel methods to generate, investigate, and verify entanglement of complex spatial structures. Quantum theory is one of the most successful and astonishing physical theories. It made possible various technical devices like lasers or mobile phones and, at the same time, it completely changed our understanding of the world. Interestingly, such counterintuitive features like entanglement are an important building block for future quantum technologies. In photonic experiments, the transverse spatial degree of freedom offers great potential to explore fascinating phenomena of single photons and quantum entanglement. It was possible to verify the entanglement of two photons with very high quanta of orbital angular momentum, a property of photons connected to their spatial structure and theoretically unbounded. In addition, modern imaging technology was used to visualize the effect of entanglement even in real-time and to show a surprising property: photons with complex spatial patterns can be both entangled and not entangled in polarization depending on their transverse spatial position.

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Brain Tumor Imaging (repost)

Elke Hattingen, Ulrich Pilatus, "Brain Tumor Imaging"


2015 | ISBN-10: 3642450393 | 161 pages | PDF | 29 MB

This book describes the basics, the challenges and the limitations of state of the art brain tumor imaging and examines in detail its impact on diagnosis and treatment monitoring. It is intended for radiologists, neurologists, neurosurgeons, oncologists and other scientists in the biomedical field with an interest in neuro-oncology.




The book opens with an introduction to the clinically relevant physical principles of brain imaging. Since MR methodology plays a crucial role in brain imaging, the fundamental aspects of MR spectroscopy, MR perfusion and diffusion-weighted MR methods are described, focusing on the specific demands of brain tumor imaging. The potential and limits of conventional MR imaging and new imaging methodology are carefully addressed. In the main part of the book, the most important imaging criteria for the differential diagnosis of solid and necrotic brain tumors are delineated and illustrated in examples. Specific issues relevant to all MR modalities used for this purpose are thoroughly discussed. A closing section is devoted to the use of MR methods for the monitoring of brain tumor therapy.

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Dual Energy CT in Oncology (Repost)

Carlo N. De Cecco, "Dual Energy CT in Oncology"


English | 2015 | ISBN-10: 331919562X | 154 pages | pdf | 12 MB