English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

A central aim of relativistic quantum information (RQI) is the investigationof quantum information tasks and resources taking into account the relativisticaspects of nature. More precisely, it is of fundamental interest to understandhow the storage, manipulation, and transmission of information utilizingquantum systems are influenced by the fact that these processes take place in arelativistic spacetime. In particular, many studies in RQI have been focused onthe effects of non-uniform motion on entanglement, the main resource of quantuminformation protocols. Early investigations in this direction were performed inhighly idealized settings that prompted questions as to the practicalaccessibility of these results. To overcome these limitations it is necessaryto consider quantum systems that are in principle accessible to localizedobservers. In this thesis we present such a model, the rigid relativisticcavity, and its extensions, focusing on the effects of motion on entanglementand applications such as quantum teleportation. We study cavities in (1+1)dimensions undergoing non-uniform motion, consisting of segments of uniformacceleration and inertial motion of arbitrary duration that allow the involvedvelocities to become relativistic. The transitions between segments can besharp or smooth and higher dimensions can be incorporated. The primary focuslies in the Bogoliubov transformations of the quantum fields, real scalarfields or Dirac fields, confined to the cavities. The Bogoliubovtransformations change the particle content and the occupation of the energylevels of the cavity. We show how these effects generate entanglement betweenthe modes of the quantum fields inside a single cavity for various initialstates. The entanglement between several cavities, on the other hand, isdegraded by the non-uniform motion, influencing the fidelity of tasks such asteleportation.

Cavity mode entanglement in relativistic quantum information