Quantum Theory of Non-Local Fields. Part I. Free Fields

1950 ◽  
Vol 77 (2) ◽  
pp. 219-226 ◽  
Author(s):  
Hideki Yukawa
Keyword(s):  
Quantum Theory ◽  
Local Fields ◽  
Non Local ◽  
Free Fields

Canonical quantization of free fields

2021 ◽  
pp. 70-98
Author(s):  
Iosif L. Buchbinder ◽  
Ilya L. Shapiro
Keyword(s):  
Field Theory ◽  
Quantum Theory ◽  
Electromagnetic Fields ◽  
Classical Theory ◽  
Canonical Quantization ◽  
Classical Mechanics ◽  
Scalar Fields ◽  
Complex Scalar ◽  
Spinor Fields ◽  
Free Fields

This chapter discusses canonical quantization in field theory and shows how the notion of a particle arises within the framework of the concept of a field. Canonical quantization is the process of constructing a quantum theory on the basis of a classical theory. The chapter briefly considers the main elements of this procedure, starting from its simplest version in classical mechanics. It first describes the general principles of canonical quantization and then provides concrete examples. The examples include the canonical quantization of free real scalar fields, free complex scalar fields, free spinor fields and free electromagnetic fields.

scholarly journals Einstein-Podolsky-Rosen correlation seen from moving observers

2003 ◽  
Vol 3 (3) ◽  
pp. 224-228
Author(s):  
H. Terashima ◽  
M. Ueda
Keyword(s):  
Quantum Theory ◽  
Quantum Communication ◽  
Relativistic Quantum ◽  
Entangled State ◽  
Local Correlation ◽  
Relativistic Quantum Theory ◽  
Gedanken Experiment ◽  
Einstein Podolsky Rosen ◽  
Non Local ◽  
Epr Pair

Within the framework of relativistic quantum theory, we consider the Einstein-Podolsky-Rosen (EPR) gedanken-experiment in which measurements of the spin are performed by moving observers. We find that the perfect anti-correlation in the same direction between the EPR pair no longer holds in the observers' frame. This does not imply a breakdown of the non-local correlation. We explicitly show that the observers must measure the spin in appropriately chosen different directions in order to observe the perfect anti-correlation. This fact should be taken into account in utilizing the entangled state in quantum communication by moving observers.

Re-Conceiving Information Studies: A Quantum Approach

2013 ◽  
Author(s):  
John M. Budd
Keyword(s):  
Quantum Theory ◽  
Local Dynamic ◽  
Complex Processes ◽  
Information Studies ◽  
Quantum Approach ◽  
Non Local

This presentation is a suggestion for rethinking future inquiry in information studies. Features of quantum theory, including examining information and informing action as non-local, dynamic, and time-reversible allow for a departure from existing intellectual constraints. The result desired would be a renaissance in the examination of complex processes, examination not limited by past materialist, instrumentalist, and static conceptions.Cette communication propose une nouvelle façon de penser un questionnement futur en science de l’information. Des notions de théorie quantique, y compris examiner l’information et éclairer les interventions dans une optique non locale, dynamique et réversible permettent de s’éloigner des contraintes intellectuelles actuelles. Le résultat souhaité serait une renaissance de l’examen de processus complexes, non limité aux anciennes conceptions matérialistes, instrumentalistes et statiques.

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