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Related papers: The Twin Paradox Put to Rest

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Some known relativistic paradoxes are reconsidered for closed spaces, using a simple geometric model. For two twins in a closed space, a real paradox seems to emerge when the traveling twin is moving uniformly along a geodesic and returns…

General Physics · Physics 2015-04-08 Moses Fayngold

The purpose of this letter is to show, on the one hand, how the so-called train paradox could be resolved directly without appealing to non-linear Lorentz transformations. The resolution is established in the most general case of…

Mathematical Physics · Physics 2009-11-10 M. Azreg-Ainou

The famous twin paradox of the Special Theory of Relativity by Einstein (1905) is revisited and revised. This paradox is not a paradox in the true sense of a paradox but a reflection of a misunderstanding of the problem and the Principle of…

General Physics · Physics 2008-09-06 G. G. Nyambuya , M. D. Ngobeni

The twin paradox of the special theory of relativity has given rise to a large body of literature discussing its implications. In its standard form, the traveler changes velocity only at the destination of the trip, so that he appears to…

General Physics · Physics 2016-10-12 David A. de Wolf

The accepted resolution of the twin paradox in relativity states that the age of the inertial twin `jumps' when the traveling twin undergoes his turn-around acceleration. This resolution is based on the use of the equivalent gravitational…

Classical Physics · Physics 2012-07-05 Vasant Natarajan

We present a resolution of the Klein paradox within the framework of one-particle relativistic quantum mechanics. Not only reflection becomes total but the vacuum remains neutral as well. This is accomplished by replacing the pair…

Quantum Physics · Physics 2011-12-26 A. D. Alhaidari

It is sometimes claimed that the twin "paradox" requires general relativity for a resolution. This paper presents a simple, exact resolution using only special relativity and the equivalence principle. Two earlier approximate solutions are…

General Relativity and Quantum Cosmology · Physics 2023-07-04 David Derbes

One of the most discussed peculiarities of Einstein's theory of relativity is the twin paradox, the fact that the time between two events in space-time appears to depend on the path between these events. We show that this time discrepancy…

General Physics · Physics 2010-08-03 E. Fischer

Twins travelling at constant relative velocity will each see the other's time dilate leading to the apparent paradox that each twin believes the other ages more slowly. In a finite space, the twins can both be on inertial, periodic orbits…

General Relativity and Quantum Cosmology · Physics 2009-11-07 John D. Barrow , Janna Levin

It is shown that the "twin paradox" arises from comparing unlike entities, namely perceived intervals with eigenintervals. When this lacuna is closed, it is seen that there is no twin paradox and that eigentime can serve as the independent…

General Physics · Physics 2007-05-23 A. F. Kracklauer , P. T. Kracklauer

In the standard formulation of the twin paradox an accelerated twin considers himself as at rest and his brother as moving. Hence, when formulating the twin paradox, one uses the general principle of relativity, i.e. that accelerated and…

General Physics · Physics 2010-02-23 Oyvind Gron

We study the quantum version of the classical twin paradox in special relativity by replacing the twins with quantum detectors, and studying the transitions and entanglement induced by coupling them to a quantum field. We show that the…

General Relativity and Quantum Cosmology · Physics 2025-12-12 K. Hari , Subhajit Barman , Dawood Kothawala

We discuss the twin paradox or the clock paradox under the small velocity approximation of special relativity. In this paper the traveller twin of the standard twin parable sets out with a non-relativistic speed for the trip leaving behind…

General Relativity and Quantum Cosmology · Physics 2007-05-23 S. K. Ghosal , Saroj Nepal , Debarchana Das

This article revisits the historiography of the problem of inertial frames. Specifically, the case of the twins in the clock paradox is considered to see that some resolutions implicitly assume inertiality for the non-accelerating twin. If…

General Physics · Physics 2012-02-15 Subhash Kak

The twin paradox is the best known thought experiment associated with Einstein's theory of relativity. An astronaut who makes a journey into space in a high-speed rocket will return home to find he has aged less than a twin who stayed on…

General Relativity and Quantum Cosmology · Physics 2009-11-02 J. -P. Luminet

We consider the twin paradox of special relativity in a universe with a compact spatial dimension. Such topology allows two twin observers to remain inertial yet meet periodically. The paradox is resolved by considering the relationship of…

General Relativity and Quantum Cosmology · Physics 2009-09-29 Dhruv Bansal , John Laing , Aravindhan Sriharan

Solving special relativity paradoxes requires rigorous analysis of event timing, due to relative simultaneity in consequence of the Lorentz transformation. Since clock synchronisation is a convention in special theory of relativity, instead…

Classical Physics · Physics 2012-12-04 Jacek Ciborowski , Marta Wlodarczyk

The twin paradox, which evokes from the the idea that two twins may age differently because of their relative motion, has been studied and explained ever since it was first described in 1906, the year after special relativity was invented.…

General Relativity and Quantum Cosmology · Physics 2019-10-23 J. Gamboa , F. Mendez , M. B. Paranjape , Benoit Sirois

Conventional wisdom, based on kinematic (flat-space) intuition, tell us that a static twin is aging faster than his traveling twin brother. However, such a situation could be exactly inverted if the two twins are embedded in an external…

General Relativity and Quantum Cosmology · Physics 2014-09-08 M. Gasperini

In this article, we present several apparent paradoxes of special relativity and their respective solutions. These paradoxes have appeared since the advent of relativity in 1905, and in fact they are never paradoxes. From a didactic point…

Popular Physics · Physics 2023-07-13 G. Alencar , J. Macedo , L. Maranhão , P. Carneiro
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