Time-traveling telescopes: An approach to teaching quantum entanglement

Serkan Akkoyun, Mehmed Koç, Sebahattin Kartal +1 more

BMJC Bieżanek

If one wants to understand quantum entanglement (in quantum physics) and the way that our universe actually works to provide a virtual-time-machine environment, then my new subject of quantum relativity and the associated new arithmetic that I teach within this article becomes mandatory.

F.J. Duarte

Gesche Pospiech, Sergej Faletič, M Michelini

Abstract At the GIREP 2023 conference, the GIREP thematic group “Teaching and learning in quantum physics” had organised a discussion workshop on quantum entanglement. The discussion at the time revealed different positions on the conceptual clarification and communication of entanglement, with new questions also arising e.g. concerning the question how an understanding of entanglement can be built in learners. Therefore, in 2024 we proposed a discussion workshop with a series of focused questions that expands on corresponding topics. The organisers invited interested participants to prepare their position on prepared questions, that were distributed in advance, and to present their stance in the discussion. The goal of the discussion was to provide a community-based paper on how to facilitate entanglement for different target populations.

Hoshang Heydari

Siddhartha Santra, Brian T. Kirby, Vladimir S. Malinovsky +1 more

A protocol of measuring interferometric visibility function using imperfectly entangled states shared between remote telescopes is proposed. We demonstrate how quantum entanglement can be utilized to increase the baseline size of telescopic arrays thereby providing substantial enhancement to the resolution of direct-detection interferometric measurements. We demonstrate, through a comprehensive analysis, how errors in visibility measurements and in the intensity distribution of a distant object show dependence on the entanglement degree of the shared quantum resource. We analyse the feasibility of the protocol using currently available technology and identify the nature of sources that can benefit most from it.