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Simulations of Closed Timelike Curves [PDF]
Foundations of Physics, 2017 Proposed models of closed timelike curves (CTCs) have been shown to enable powerful information-processing protocols. We examine the simulation of models of CTCs both by other models of CTCs and by physical systems without access to CTCs. We prove that the recently proposed transition probability CTCs (T-CTCs) are physically equivalent to postselection
Todd A. Brun, Mark M. Wilde
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Quantum avoidance of Gödel’s closed timelike curves
European Physical Journal C: Particles and Fields, 2023 In a large class of nonlocal as well as local higher derivative theories minimally coupled to the matter sector, we investigate the exactness of two different classes of homogeneous Gödel-type solutions, which may or may not allow closed time-like curves
Zhe Zhao, Leonardo Modesto
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CLOSED TIMELIKE CURVES IN RELATIVISTIC COMPUTATION [PDF]
Parallel Processing Letters, 2012 In this paper, we investigate the possibility of using closed timelike curves (CTCs) in relativistic hypercomputation. We introduce a wormhole based hypercomputation scenario which is free of the common worries, such as the blueshift problem. We also discuss the physical reasonability of our scenario, and why we cannot simply ignore the possibility of ...
Andréka, Hajnal +2 more
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On the Counter-Rotation of Closed Time-like Curves
Universe, 2022 While it is tempting to think of closed time-like curves (CTCs) around rotating bodies, such as a black hole, as being “caused” by the rotation of the source, Andréka et al.
Yuanyuan Duan +3 more
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Closed timelike curves and energy conditions in regular spacetimes
European Physical Journal C: Particles and Fields, 2022 In this article, we explore the relationship between the existence of closed timelike curves and energy conditions that occur in the Kerr–Newman spacetime.
Sashideep Gutti +2 more
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Closed Timelike Curves Induced by a Buchdahl-Inspired Vacuum Spacetime in
Universe, 2023 The recently obtained special Buchdahl-inspired metric Phys. Rev. D 107, 104008 (2023) describes asymptotically flat spacetimes in pure Ricci-squared gravity.
Hoang Ky Nguyen, Francisco S. N. Lobo
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A Causality Preserving Evolution of a Pair of Strings
Universe, 2022 As follows from Gott’s discovery, a pair of straight string-like singularities moving in opposite directions, when they have suitable speed and impact parameter, produce closed timelike curves.
Serguei Krasnikov
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Simulation of Closed Timelike Curves in a Darwinian Approach to Quantum Mechanics
Universe, 2023 Closed timelike curves (CTCs) are non-intuitive theoretical solutions of general relativity field equations. The main paradox associated with the physical existence of CTCs, the so-called grandfather paradox, can be satisfactorily solved by a quantum ...
Carlos Baladrón, Andrei Khrennikov
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Experimental simulation of closed timelike curves [PDF]
Nature Communications, 2014 9 pages, 8 ...
Ringbauer, Martin +4 more
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Closed Timelike Curves, Singularities and Causality: A Survey from Gödel to Chronological Protection
Universe, 2021 I give a historical survey of the discussions about the existence of closed timelike curves in general relativistic models of the universe, opening the physical possibility of time travel in the past, as first recognized by K.
Jean-Pierre Luminet
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