Towards a Field-Theory based Relativistic Quantum Information

We present our program for the development of quantum informational concepts in relativistic systems in terms of the unequal-time correlation functions of quantum fields. We employ two formalisms that provide the basis for further developments. (i) The Quantum Temporal Probabilities (QTP) Method for...

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Bibliographic Details
Published in:Journal of physics. Conference series 2023-06, Vol.2533 (1), p.12004
Main Authors: Anastopoulos, Charis, Hu, Bei-Lok, Savvidou, Konstantina
Format: Article
Language:English
Subjects:
Correlation
Formalism
Physics
Quantum phenomena
Quantum theory
Relativistic effects
Relativistic theory
Time correlation functions
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Summary:We present our program for the development of quantum informational concepts in relativistic systems in terms of the unequal-time correlation functions of quantum fields. We employ two formalisms that provide the basis for further developments. (i) The Quantum Temporal Probabilities (QTP) Method for quantum field measurements and (ii) the Closed-Time-Path (CTP) formalism for causal time evolutions. We present the main ideas of QTP and we show how it relates to the CTP formalism, allowing us to express concepts of measurement theory in terms of path-integrals. We also present many links of our program to non-equilibrium quantum field theories. Details can be found in a recent paper by the authors [1].
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2533/1/012004