{"product_id":"back-in-time-and-faster-than-light-travel-in-general-relativity-von-serguei-krasnikov","title":"Back-in-Time and Faster-than-Light Travel in General Relativity","description":"\n                                For the past 20 years causality violations and superluminal motion have been the object of intensive study as physical and geometrical phenomena. This book compiles the results of its author and also reviews other work in the field. In particular, the following popular questions are addressed: \n                \n                \u003cul\u003e\n                                        \n                    \u003cli\u003eIs causality protected by quantum divergence at the relevant Cauchy horizon? \u003c\/li\u003e\n                                        \n                    \u003cli\u003eHow much \"exotic matter\" would it take to create a time machine or a warp drive? \u003c\/li\u003e\n                                        \n                    \u003cli\u003eWhat is the difference between a \"discovered\" time machine and a created one? \u003c\/li\u003e\n                                        \n                    \u003cli\u003eWhy does a time traveler fail to kill their grandfather? \u003c\/li\u003e\n                                        \n                    \u003cli\u003e\n                                                How should we define the speed of gravity and what is its magnitude?\n                        \n                        \u003cbr\u003e\n                                            \n                    \u003c\/li\u003e\n                                    \n                \u003c\/ul\u003e\n                            \n            \u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783030102609\"\u003e\u003ch3\u003e\u003c\/h3\u003e\u003c\/div\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783319727530\"\u003e\u003ch3\u003e\u003c\/h3\u003e\u003c\/div\u003e","brand":"Libri","offers":[{"title":"Softcover - 9783030102609","offer_id":39423484723293,"sku":"9783030102609","price":160.49,"currency_code":"EUR","in_stock":true},{"title":"Hardcover - 9783319727530","offer_id":40817197351005,"sku":"9783319727530","price":160.49,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/a52b4bba-3624-436d-974c-52bca02bcb25.jpg?v=1773984881","url":"https:\/\/shop.autorenwelt.de\/products\/back-in-time-and-faster-than-light-travel-in-general-relativity-von-serguei-krasnikov","provider":"Autorenwelt Shop","version":"1.0","type":"link"}