Quantum Information in Relativity: the Challenge of QFT Measurements
- URL: http://arxiv.org/abs/2111.07983v1
- Date: Mon, 15 Nov 2021 18:48:42 GMT
- Title: Quantum Information in Relativity: the Challenge of QFT Measurements
- Authors: Charis Anastopoulos and Ntina Savvidou
- Abstract summary: Proposed quantum experiments in deep space will be able to explore quantum information issues in regimes where relativistic effects are important.
We argue that a proper extension of Quantum Information theory into the relativistic domain requires the expression of all informational notions.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Proposed quantum experiments in deep space will be able to explore quantum
information issues in regimes where relativistic effects are important. In this
essay, we argue that a proper extension of Quantum Information theory into the
relativistic domain requires the expression of all informational notions in
terms of quantum field theoretic (QFT) concepts. This task requires a working
and practicable theory of QFT measurements. We present the foundational
problems in constructing such a theory, especially in relation to longstanding
causality and locality issues in the foundations of QFT. Finally, we present
the ongoing Quantum Temporal Probabilities program for constructing a
measurement theory that (i) works, in principle, for any QFT, (ii) allows for a
first-principles investigation of all relevant issues of causality and
locality, and (iii) it can be directly applied to experiments of current
interest.
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