{"product_id":"153870197_product","title":"Dr James Read - Background Independence in Classical and Quantum Gravi","description":"New Store Stock\u003cbr\u003e\u003cstrong\u003eAbout this Item\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eThe item is a book Hardback\u003cbr\u003eThe Author Name is Dr James Read\u003cbr\u003eThe Title is Background Independence in Classical and Quantum Gravity\u003cbr\u003e\u003cbr\u003eCondition New\u003cbr\u003e\u003cbr\u003eOther Comments\u003cbr\u003eNew Store Stock\u003cbr\u003eCategory - Science\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eProduct Description -\u003cbr\u003eIt is often claimed that Einstein's magnum opus---his 1915 theory of General Relativity---is distinguished from other theories of space and time in virtue of its background independence. It's also often claimed that background independence is an essential feature of any quantum theory of gravity. But are these claims true? This book aspires to offer definitive answers to both of these questions, by (a) charting the space of possible definitions of background independence, and (b) applying said definitions to various classical and quantum theories of gravity.\r\n\r\n The outcome, in brief, is as follows: General Relativity is not unique by virtue of its background independence (and, indeed, fails to be background independent on some popular definitions)  moreover, the situation in the case of quantum theories of gravity is delicate, because (i) there are viable such theories which (by some accounts, at least) fail to be background independent, but also (ii) theories (e.g. perturbative string theory) which have often been dismissed for (allegedly) being background dependent in fact, on many accounts, are better classified as background independent. In giving these answers in rigorous detail, this book seeks to elevate the standards and generality of future discussions of background independence in the foundations of spacetime theories.\u003cbr\u003e\u003cp\u003eWhen possible we will add details of the items we are selling to help buyers know what is included in the item for sale. The details are provided automatically from our central master database and can sometimes be wrong.\u003c\/p\u003e\n\n\u003cp\u003eBooks are released in many editions and variations, such as standard edition, re-issue, not for sale, promotional, special edition, limited edition, and many other editions and versions.  The Book you receive could be any of these editions or variations. If you are looking for a specific edition or version please contact us to verify what we are selling.\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGift Ideas\u003c\/strong\u003e\u003cbr\u003e\nThis is a great gift idea.\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHours of Service\u003c\/strong\u003e\u003cbr\u003e\nWe have many warehouses, some of the warehouses process orders seven days a week, but the Administration Support Staff are located at a head office location, outside of the warehouses, and typically work only Monday to Friday.\u003c\/p\u003e\n\u003cbr\u003eLocation ID 245z\u003cbr\u003e\u003cbr\u003eiHaveit SKU ID 174160293\u003cbr\u003e\u003cbr\u003e","brand":"Oxford University Press","offers":[{"title":"Default Title \/ unisex","offer_id":45356319637748,"sku":"174160293","price":79.6,"currency_code":"GBP","in_stock":true}],"url":"https:\/\/ihaveitmarketplace.com\/products\/153870197_product","provider":"iHaveit","version":"1.0","type":"link"}