{"title":"Martin Bojowald","description":null,"products":[{"product_id":"once-before-time-book-martin-bojowald-9780307272850","title":"Once Before Time","description":"\u003cp\u003eIn his introduction to a revolutionary theory of the cosmos, Martin Bojowald shows how the big bang theory may give way to the big bounce theory, which describes our universe as an eternal series of expansions and contractions, with no beginning and no end. \u003c\/p\u003e\u003cp\u003e\u003c\/p\u003eIn 2000, Bojowald, then a twenty-seven-year-old postdoctoral student at Pennsylvania State University, used a relatively new theory called loop quantum gravity--a cunning combination of Einstein's theory of gravity with quantum mechanics--to create a simple model of the universe. Loop quantum cosmology, or LQC, was born, and with it, a theory that managed to do something even Einstein's general theory of relativity had failed to do--illuminate the very birth of the universe.","brand":"WoB","offers":[{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":49594401685777,"sku":"GOR005456219","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":49864684405009,"sku":"CIN0307272850G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ GOOD \/ INTERNAL","offer_id":50527414518033,"sku":"GOR006893092","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":51327896256785,"sku":"CIN0307272850VG","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/0307272850.jpg?v=1750973623"},{"product_id":"once-before-time-book-martin-bojowald-9780307474551","title":"Once Before Time","description":"\u003cp\u003eIn his introduction to a revolutionary theory of the cosmos, Martin Bojowald shows how the big bang theory may give way to the big bounce theory, which describes our universe as an eternal series of expansions and contractions, with no beginning and no end. \u003c\/p\u003e\u003cp\u003e\u003c\/p\u003eIn 2000, Bojowald, then a twenty-seven-year-old postdoctoral student at Pennsylvania State University, used a relatively new theory called loop quantum gravity--a cunning combination of Einstein's theory of gravity with quantum mechanics--to create a simple model of the universe. 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Throughout the book, the discussion focuses on the physical meaning of space-time - classical or quantum - and on the important requirement of general covariance. Various classical models are derived from this condition and applied to basic questions in cosmology and the physics of black holes. The book's introduction of relevant ingredients from quantum physics makes it possible to derive fundamental features of quantum cosmology, to present the main approaches to quantum gravity, including string theory and causal dynamical triangulations, and to outline some of their cosmological implications. It is an essential guide for researchers in quantum gravity and astrophysicists interested in fundamental aspects of cosmology.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEmphasizes the physics of quantum cosmology\u003c\/li\u003e\n\u003cli\u003eEmploys new semiclassical methods to avoid counter-intuitive aspects in quantum cosmology\u003c\/li\u003e\n\u003cli\u003ePresents quantum cosmology in the language of well-understood physics models\u003c\/li\u003e\n\u003cli\u003eHighlights implications of general covariance in classical and quantum cosmology\u003c\/li\u003e\n\u003cli\u003eIncludes results from a variety of approaches to quantum cosmology, as well as relations between them\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"WoB","offers":[{"title":"- \/ - \/ -","offer_id":51006531109137,"sku":"","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ NEW \/ INGRAM","offer_id":51006534418705,"sku":"NIN9780750324588","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ NEW \/ INGRAM","offer_id":53468771975441,"sku":"NLS9780750324588","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/0750324589.jpg?v=1750785043"},{"product_id":"quantum-cosmology-book-martin-bojowald-9781441982759","title":"Quantum Cosmology","description":"Consequences of quantum gravity on grander scales are expected to be enormous: only such a theory can show how black holes really behave and where our universe came from. 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Loop quantization: a new formalism for the atomic picture of space-time; usually presented at a sophisticated mathematical level, but evaluated here from an intuitive physical side.  The book will start with physical motivations, rather than mathematical developments which is more common in other expositions of this field. All the required mathematical methods will be presented, but will not distract the reader from seeing the underlying physics. Simple but representative models will be presented first to show the basic features, which are then used to work upwards to a general description of quantum gravity and its applications in cosmology. 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