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AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit (JPC)

Practical Time Travel - Entangling the Near Future with the Recent Past

Allan Goff

Published Jul 10, 2005• 1 citation
Publisher

Abstract

This paper surveys a research effort to explore the potential for quantum nonlocality to support superluminal signaling. The emphasis is on the issue of temporal paradox. Through the metaphor of Quantum Tic-Tac-Toe, it is shown how superposition leads to a Many Worlds variant called the Classical Ensemble. As a quantum system evolves, superposition branches off new classical realities, but contradictory ones are pruned from the ensemble. The pruning results in nonseparable states and thus to entangling of the quantum system. When these entanglements become cyclic, they introduce nonlinearities into the quantum system that result in self-collapse. Since cyclic entanglements are in general self-referential in only one basis, collapse occurs only in the self-referential basis. Cyclic entanglements are thus a viable candidate as the measurement mechanism. Collapse is made consistent with relativity by introducing the symmetric spacetime interval. The resulting closed loops in spacetime entangle the near future with the recent past so collapse of quantum systems offers a potential means for achieving superluminal signaling (FTL) and something very like time travel. The pruning in the classical ensemble acts as the censor mechanism that prevents temporal paradox while allowing backwards-in-time causality. This removes the logical objections to FTL and time travel.

DOI
10.2514/6.2005-3820

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This paper surveys a research effort to explore the potential for quantum nonlocality to support superluminal signaling. The emphasis is on the issue of temporal paradox. Through the metaphor of Quantum Tic-Tac-Toe, it is shown how superposition leads to a Many Worlds variant called the Classical Ensemble. As a quantum system evolves, superposition branches off new classical realities, but contradictory ones are pruned from the ensemble. The pruning results in nonseparable states and thus to entangling of the quantum system. When these entanglements become cyclic, they introduce nonlinearities into the quantum system that result in self-collapse. Since cyclic entanglements are in general self-referential in only one basis, collapse occurs only in the self-referential basis. Cyclic entanglements are thus a viable candidate as the measurement mechanism. Collapse is made consistent with relativity by introducing the symmetric spacetime interval. The resulting closed loops in spacetime entangle the near future with the recent past so collapse of quantum systems offers a potential means for achieving superluminal signaling (FTL) and something very like time travel. The pruning in the classical ensemble acts as the censor mechanism that prevents temporal paradox while allowing backwards-in-time causality. This removes the logical objections to FTL and time travel.
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In previous work, the case has been made that the nonlocality of quantum systems implies some kind of spacelike causal connection, and that for this connection to be physically real, it must meet several very rigid constraints. Step by step, a reformulation of quantum mechanics has been developed that meets these constraints. These constraints include relativistic consistency, causality, and some way to avoid temporal paradox. The reformulation of quantum mechanics to meet these criteria has yielded a hypothesis that cyclically entangled quantum systems provide an objective measurement mechanism. This hypothesis has stood up well in abstract quantum systems where the superpositions are unweighted. This paper continues the effort by considering the case for cyclic entanglements when the superpositions have complex weights. It is shown that in general, a cyclic entanglement is self-referential in only one basis and it is in this basis that collapse occurs. Thus, cyclic entanglements provide both the nonlinearity and the symmetry breaking necessary for a quantum system to self-collapse. This removes the confusing and ambiguous requirement for an outside observer (which ultimately is just another quantum system) to perform the measurement act. This reformulation of quantum mechanics permits relativistically consistent superluminal communications and paradox-free backwards-intime causality.
The "time traveler party" experiment conducted by Stephen Hawking in 2009 yielded a negative result. The primary reasons for this outcome were the lack of a spacetime addressing matrix and the uncontrolled presence of a macroscopic observer, which caused the immediate collapse of potential quantum superpositions. This paper presents a radical advancement of Hawking's approach. By synthesizing macroscopic quantum isolation within a geographical zero-interaction zone, a serial 365-day experimental matrix, a physical buffer airlock governed by a temporal cryptographic key, and strict informational epistemiophobia (the prevention of worldline interference through binary data reduction), a logically consistent and paradox-free experimental setup is defined. The objective is to mathematically maximize the probability of a temporal causal feedback loop while establishing an economically viable, generation-spanning framework. This document was developed using artificial intelligence (AI) as a collaborative sparring partner. The AI was utilized for structural analysis, identifying theoretical consistency gaps, refining the formulation of the mathematical-physical model, and executing the full English translation. The conceptual and thematic authorship remains entirely with the author.
This paper presents a novel quantum time travel simulation framework leveraging the principles of quantum entanglement to model the evolution of quantum states across multiple temporal pathways. The core claim is to build a quantum time travel simulator based on the self-organizing properties of quantum entanglement, enabling the prediction of future quantum effects. Traditional time travel simulations rely on classical physics, this algorithm aims to exploit entanglement for more accurate state evolution prediction. The system employs a quantum state representation to track the evolution of entangled particles across different time slices, allowing for the simulation of potential temporal distortions and their associated effects. This research explores the potential of this approach to generate new insights into the nature of time and quantum mechanics.
The study of quantum correlations within relativistic spacetimes, and the consequences of relativistic causality on information processing using such correlations, has gained much attention in recent years. In this paper, we establish a unified framework in the form of operational no-signalling constraints to study both nonlocal and temporal correlations within general relativistic spacetimes. We explore several intriguing consequences arising from our framework. Firstly, we show that the violation of the operational no-signalling constraints in Minkowski spacetime implies either a logical paradox or an operational infringement of Poincaré symmetry. We thereby examine and subvert recent claims in [Phys. Rev. Lett. 129, 110401 (2022)] on the possibility of witnessing operationally detectable causal loops in Minkowski spacetime. Secondly, we explore the possibility of jamming of nonlocal correlations, controverting a recent claim in [Nat. Comm. 16, 269 (2025)] that a physical mechanism for jamming would necessarily lead to superluminal signalling. Finally, we show that in black hole spacetimes certain nonlocal correlations under and across the event horizon can be jammed by any agent without spoiling the operational no-signalling constraints.