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Titlebook: Back-in-Time and Faster-than-Light Travel in General Relativity; Serguei Krasnikov Book 2018 Springer International Publishing AG, part of

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发表于 2025-3-21 17:59:03 | 显示全部楼层 |阅读模式
期刊全称Back-in-Time and Faster-than-Light Travel in General Relativity
影响因子2023Serguei Krasnikov
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发行地址Addresses the physics and mechanics of time travel and faster-than-light motion, compiled by an acknowledged expert.Readers uninterested in rigorous proofs can safely skip most of the mathematics but
学科分类Fundamental Theories of Physics
图书封面Titlebook: Back-in-Time and Faster-than-Light Travel in General Relativity;  Serguei Krasnikov Book 2018 Springer International Publishing AG, part of
影响因子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: .Is causality protected by quantum divergence at the relevant Cauchy horizon? .How much "exotic matter" would it take to create a time machine or a warp drive? .What is the difference between a "discovered" time machine and a created one? .Why does a time traveler fail to kill their grandfather? .How should we define the speed of gravity and what is its magnitude?.
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发表于 2025-3-21 21:29:09 | 显示全部楼层
Frosso S. Makri,Zaharias M. Psillakis simple sets—appear and the theorem is proved which states that they exist in arbitrary spacetime. We shall use this theorem in proving Theorem . in Chap. 5, but, as it seems, it is interesting also by itself (the perfectly simple sets are ‘as nice as possible’—they are both convex . globally hyperb
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Adrian Preda,Robert Bota,Philip Harvey (1973). The Large Scale Structure of Spacetime. Cambridge University Press, Cambridge) [76]. As a by-product, we shall reveal, in the end of the chapter, a curious relation between the geometry of a spacetime and its matter content.
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Physical Predilections often they manifest themselves in casual remarks like, ‘This violates causality and is, therefore, impossible’. Perhaps, a too thorough analysis of these principles would be redundant, but on the other hand, in discussing the subject matter of this book the traditional half-poetic approach is definitely insufficient.
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WEC-Related Quantum Restrictionsderation often violate the weak energy condition. Our task in this chapter is to explore the ensuing consequences and to check whether they prohibit exotic spaces as the lack of exotic matter prohibits such spaces in the classical case.
发表于 2025-3-23 09:22:46 | 显示全部楼层
Book 2018ive? .What is the difference between a "discovered" time machine and a created one? .Why does a time traveler fail to kill their grandfather? .How should we define the speed of gravity and what is its magnitude?.
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