Quantum Information Theory of Observers in Analogue and Emergent Gravity
Abstract
This project aims to fill this gap with an explicit model for such observers and to study how these so-called internal observers interact with the analogue universe around them. The long-term goal of this research direction is to study how the internal observers view quantum fluctuations in the medium and how they interpret interactions with external quantum particles. The project work made significant progress in this direction, documented in refereed journal articles commenced within the project period and published in the following years. Research outcomes of this work are: 1) Einstein's theory of relativity which is critical for high-precision measurements, such as those required for accurate GPS timing is hard to grasp, so intuition from sonic models of relativity is useful because we understand the physics of those systems intuitively. 2) There exist viable models of internal observers whose measurements will reflect the sonic relativity naturally present within acoustic materials. The means by which these observers come to establish beliefs about the nature of their world informs us about how we have come to understand our own. 3) The internal observers will believe their world to be entirely relativistic and free of any medium within which sound would propagate despite us being able to see otherwise from the outside. 4) Given the ability to scatter sound from external (non-sonic) particles, the internal observers will see evidence of their motion with respect to the medium. Additional outcomes include two studies of vacuum entanglement extraction from a quantum field given two different deviations from standard physical assumptions: (1) a physical bandlimit on quantum field theory in attempts to extract entanglement from the quantum vacuum, and (2) a modification to the standard model of a quantum particle detectors to account for its quantum degrees of freedom.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 25, 2024
- Accession Number
- AD1230295
Entities
People
- Nicolas C. Menicucci
Organizations
- RMIT University