TL;DR
This paper explores how horizon concepts from general relativity can be applied to laboratory condensed-matter systems, enabling theoretical and potential experimental insights into exotic gravitational effects and non-equilibrium phenomena.
Contribution
It introduces a unified framework for understanding horizons and related quantum effects in non-gravitational laboratory systems, bridging gravity and condensed matter physics.
Findings
Identification of horizon analogs in fluid flows and Bose-Einstein condensates
Theoretical analysis of Hawking-like radiation in laboratory settings
Insights into universal features of non-equilibrium condensed matter phenomena
Abstract
The concept of a horizon known from general relativity describes the loss of causal connection and can be applied to non-gravitational scenarios such as out-of-equilibrium condensed-matter systems in the laboratory. This analogy facilitates the identification and theoretical study (e.g., regarding the trans-Planckian problem) and possibly the experimental verification of "exotic" effects known from gravity and cosmology, such as Hawking radiation. Furthermore, it yields a unified description and better understanding of non-equilibrium phenomena in condensed matter systems and their universal features. By means of several examples including general fluid flows, expanding Bose-Einstein condensates, and dynamical quantum phase transitions, the concepts of event, particle, and apparent horizons will be discussed together with the resulting quantum effects.
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