Some thermodynamic features in space-times with violation of causality

TL;DR

This paper explores thermodynamic aspects of space-times allowing time travel, addressing paradoxes and clarifying why such phenomena do not violate physical laws.

Contribution

It analyzes two specific time travel scenarios in general relativity, explaining why their existence does not forbid time machines.

Findings

Thermodynamic considerations do not prohibit time travel space-times.

Two specific time travel scenarios are examined and explained.

Existence of such space-times does not violate causality principles.

Abstract

General relativity does not prohibit the existence of space-times that describe time travel. Consideration of such spaces gives rise to a lot of questions and paradoxes, among which there are thermodynamic ones. This paper considers two situations that describe time travel, and explains why their existence does not mean that time machines are prohibited.