| Issue |
EPL
Volume 141, Number 1, January 2023
|
|
|---|---|---|
| Article Number | 12001 | |
| Number of page(s) | 6 | |
| Section | Mathematical and interdisciplinary physics | |
| DOI | https://doi.org/10.1209/0295-5075/aca930 | |
| Published online | 04 January 2023 | |
Causality in string field theory
1 Department of Physics, NIT Srinagar - Kashmir 190006, India
2 Department of Physics, Jamia Millia Islamia - New Delhi 110025, India
3 Department of Physics Engineering, Istanbul Technical University - Istanbul, 34469, Turkey
4 Canadian Quantum Research Center - 204-3002, 32 Ave Vernon, BC V1T 2L7, Canada
5 Irving K. Barber School of Arts and Sciences, University of British Columbia Okanagan Kelowna, BC V1V 1V7, Canada
(a) E-mail: mirfaizalmir@gmail.com (corresponding author)
Received: 30 October 2022
Accepted: 6 December 2022
In this letter, we will investigate causality in string field theory using pp-wave light-cone gauge string field theory. We will generalise the Ramsey scheme to string field theory, and use it to analyze string field theoretical processes. An explicit characteristic function for interactive string field theory will be built using this string field theoretical Ramsey scheme. The average of the difference between the initial and final values of any operator described in string field theory will be obtained using this characteristic function. We will use the quantum information theoretical technique based on quantum Fisher information to extract information about such string field theoretical processes.
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