SIMULTANEITY AND THE CONCEPT OF 'PARTICLE'
Open accessAbstract
The history of the particle concept is briefly reviewed, with particular emphasis on the `foliation dependence' of many particle creation models, and the possible connection between our notion of particle and our notion of simultaneity. It is argued that the concept of `radar time' (originally introduced by Sir Hermann Bondi in his work on k-calculus) provides a satisfactory concept of `simultaneity' for observers in curved spacetimes. This is used to propose an observer-dependent particle interpretation, applicable to an arbitrary observer, depending solely on that observers motion and not on a choice of coordinates or gauge. This definition is illustrated with application to non-inertial observers and simple cosmologies, demonstrating its generality and its consistency with known cases.
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The example supports the idea that the concept of a particle is linked to simultaneity.
“The example provided here also supports the idea that the concept of a particle is linked to simultaneity [29].”
From Exactly solvable 2D model for photon propagation in curved space: loss of interference and Bell inequality violation (2022) · cites this paper as [29]
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Cites
Aspects of Quantum Field Theory in Curved Space-Time
Fulling, S. A. (1989) · doi:10.1017/cbo9781139172073 · Cited by 1,121 · see citing works
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Marzlin, K.-P., & Kinach, M. P. (2022) · Classical and Quantum Gravity · doi:10.1088/1361-6382/ac4fbb · Cited by 1 · see citing works
“The example provided here also supports the idea that the concept of a particle is linked to simultaneity [29].”
Result
- Authors
- DOLBY, C. E.
- Affiliations
- University of Oxford (GB)
- Corresponding author
- DOLBY, CARL E.
- Venue
- Time and Matter
- Publisher
- WORLD SCIENTIFIC
- Published
- 2006-02
- Pages
- 145-157
- OpenAlex
- W2962838032
- Cited by
- 3
- References
- 1
- Citations by year
- 2022: 1
- FWCI
- 1.25
- Type
- conference paper
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Time and Matter International Colloquium on the Science of Time (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- CERN Document Server (European Organization for Nuclear Research) (submittedVersion)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Relativity and Gravitational Theory
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Philosophy and Theoretical Science
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Applications
- Keywords
- simultaneity, particles, relativity of simultaneity, philosophy of physics
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