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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Accelerated Expertise: Training for High Proficiency in a Complex World

Accelerated Expertise: Training for High Proficiency in a Complex World (Expertise: Research and Applications Series) by Robert R. Hoffman, Paul Ward, Paul J. Feltovich, Lia DiBello, Stephen M. Fiore, Dee H. Andrews


2013 | ISBN: 184872652X, 1848726511 | English | 272 pages | EPUB + MOBI | 1 MB + 1 MB

Speed in acquiring the knowledge and skills to perform tasks is crucial. Yet, it still ordinarily takes many years to achieve high proficiency in countless jobs and professions, in government, business, industry, and throughout the private sector. There would be great advantages if regimens of training could be established that could accelerate the achievement of high levels of proficiency. This book discusses the construct of ‘accelerated learning.’ It includes a review of the research literature on learning acquisition and retention, focus on establishing what works, and why. This includes several demonstrations of accelerated learning, with specific ideas, plans and roadmaps for doing so. The impetus for the book was a tasking from the Defense Science and Technology Advisory Group, which is the top level Science and Technology policy-making panel in the Department of Defense. However, the book uses both military and non-military exemplar case studies.




It is likely that methods for acceleration will leverage technologies and capabilities including virtual training, cross-training, training across strategic and tactical levels, and training for resilience and adaptivity.




This volume provides a wealth of information and guidance for those interested in the concept or phenomenon of "accelerating learning"― in education, training, psychology, academia in general, government, military, or industry.

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Chatham Dockyard: The Rise and Fall of a Military Industrial Complex (Repost)

Philip MacDougall, "Chatham Dockyard: The Rise and Fall of a Military Industrial Complex"


English | ISBN: 0752462121 | 2012 | EPUB/MOBI | 192 pages | 7 MB

Founded in 1570, Chatham Dockyard quickly became one of the most important naval yards for the repair and building of warships, maintaining a pre-eminent position for the next 400 years. Located on the River Medway, the yard was responsible for the construction of over 500 warships in all, these ranging from simple naval pinnaces to first-rates that fought at Trafalgar, and concluding with the hunter-killer submarines of the nuclear age. In this detailed new history of the yard from experienced local and maritime author Philip MacDougall, particular attention is given to the final 200 years of the yard’s history, the artisans and labourers who worked ther,e and the changing methods used in the construction of some of the finest warships to enter naval service. Coinciding with the dockyard’s seeking status as a World Heritage site, this fascinating history places Chatham firmly in its overall historical context.

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Aid on the Edge of Chaos: Rethinking International Cooperation in a Complex World (repost)

Aid on the Edge of Chaos: Rethinking International Cooperation in a Complex World by Ben Ramalingam


English | 2014 | ISBN: 0199578028, 0198728247 | 480 Pages | PDF | 3,4 MB

It is widely recognised that the foreign aid system – of which every country in the world is a part – is in need of drastic overhaul. There are conflicting opinions as to what should be done. Some call for dramatic increases to achieve longstanding promises. Others bang the drum for cutting it altogether, and suggest putting the fate of poor and vulnerable people in the hands of markets or business. A few argue that what is needed is creative, innovative transformation. The arguments in Aid on the Edge of Chaos are firmly in the third of these categories.




In this ground-breaking book, Ben Ramalingam shows that the linear, mechanistic models and assumptions that foreign aid is built on are more at home in early twentieth century industry than in the dynamic, complex world we face today.




The reality is that economies and societies are less like machines and more like ecosystems. Aid on the Edge of Chaos explores how thinkers and practitioners in economics, business, and public policy have started to embrace new, ecologically literate approaches to thinking and acting, informed by the ideas of complex adaptive systems research. It showcases insights, experiences, and dramatic results of a growing network of practitioners, researchers, and policy makers who are applying a complexity-informed approach to aid challenges.




From transforming approaches to child malnutrition, to rethinking process of macroeconomic growth, from rural Vietnam to urban Columbia, Aid on the Edge of Chaos shows how embracing the ideas of complex systems thinking can help make foreign aid more relevant, more appropriate, more innovative, and more catalytic. It argues that taking on these ideas will be a vital part of the transformation of aid, from a post-WW2 mechanism of resource transfer, to a truly innovative and dynamic form of global cooperation fit for the twenty-first century.

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