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Quantum Information in Relativity: The Challenge of QFT Measurements
Charis Anastopoulos1, Ntina Savvidou1
1Department of Physics, University of Patras, 26500 Patras, Greece.
Entropy (Basel, Switzerland)
|January 21, 2022
Summary
Quantum experiments in deep space necessitate a quantum field theoretic (QFT) approach to quantum information. A new measurement theory is proposed to address causality and locality in relativistic quantum information.
Area of Science:
- Quantum Information Science
- Relativistic Quantum Field Theory
- Foundations of Physics
Background:
- Deep space quantum experiments require understanding quantum information under relativistic effects.
- Current quantum information theory lacks a framework for relativistic regimes.
- Quantum Field Theory (QFT) concepts are essential for expressing relativistic informational notions.
Purpose of the Study:
- To extend quantum information theory into the relativistic domain.
- To develop a practical theory of QFT measurements.
- To investigate causality and locality issues in relativistic quantum information.
Main Methods:
- Expressing informational notions in terms of QFT concepts.
- Addressing foundational problems in QFT measurement theory.
- Presenting the Quantum Temporal Probabilities program.
Main Results:
- Identified foundational challenges in QFT measurement theory, particularly concerning causality and locality.
- Proposed the Quantum Temporal Probabilities program as a solution.
- The program is designed to be applicable to any QFT and relevant experiments.
Conclusions:
- A QFT-based measurement theory is crucial for relativistic quantum information.
- The Quantum Temporal Probabilities program offers a framework to investigate causality and locality.
- This approach enables direct application to current and future deep space quantum experiments.
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