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Multiple uncertainty relation for accelerated quantum information

Authors :
Yunlong Xiao
Chen Qian
Barry C. Sanders
Ya-Dong Wu
Jia-Wei Ji
School of Physical and Mathematical Sciences
Nanyang Quantum Hub
Complexity Institute
Publication Year :
2020

Abstract

The uncertainty principle, first introduced by Heisenberg in inertial frames, clearly distinguishes quantum theories from classical mechanics. In non-inertial frames, its information-theoretic expressions, namely entropic uncertainty relations, have been extensively studied through delocalized quantum fields, and localization of the quantum fields were discussed as well. However, infeasibility of measurements applied on a delocalized quantum field due to the finite size of measurement apparatuses is left unexplained. Therefore, physical clarification of a quantum protocol revealing entropic uncertainty relations still needs investigation. Building on advances in quantum field theories and theoretical developments in entropic uncertainty relations, we demonstrate a relativistic protocol of an uncertainty game in the presence of localized fermionic quantum fields inside cavities. Moreover, a novel lower bound for entropic uncertainty relations with multiple quantum memories is given in terms of the Holevo quantity, which implies how acceleration affects uncertainty relations.<br />9 pages, 3 figures

Details

Language :
English
Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....c847f8dc45f21e92fe5c374dc781afed