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Analogue simulation of quantum gravity black hole models in a dc-SQUID array
Marco D Maceda1, Carlos Sabín2
1Departamento de Física Teórica, Universidad Autónoma de Madrid, 28049, Madrid, Spain. marco.diaz@estudiante.uam.es.
Scientific Reports
|July 2, 2025
Summary
This study introduces an analog quantum simulation to explore stellar collapse and bounce. Researchers used a SQUID array to model light propagation in black hole-white hole spacetimes, finding downstream radiation more experimentally viable.
Area of Science:
- Quantum simulation
- Astrophysics
- Analog gravity
Background:
- Stellar collapse and bounce phenomena are complex astrophysical events.
- Simulating extreme gravitational environments like black hole-white hole spacetimes is challenging.
- Analog gravity offers a potential pathway to study such phenomena.
Purpose of the Study:
- To propose and detail an analog quantum simulation for studying stellar collapse and bounce.
- To investigate the behavior of a massless scalar field in a black hole-white hole spacetime.
- To assess the experimental feasibility of simulating infalling and outfalling radiation.
Main Methods:
- An analog quantum simulation using a SQUID array.
- Modeling a massless scalar field propagating in a curved spacetime.
- Altering light propagation using external magnetic fields.
- Analyzing infalling (downstream) and outfalling (upstream) radiation scenarios.
Main Results:
- The simulation successfully models light propagation in a black hole-white hole spacetime.
- Magnetic flux profiles were computed for both downstream and upstream radiation.
- Downstream radiation (infalling) was identified as more experimentally suitable.
Conclusions:
- Analog quantum simulations are a viable tool for studying astrophysical phenomena like stellar collapse.
- The proposed SQUID array system offers a controllable platform for analog gravity experiments.
- Experimental conditions favoring downstream radiation present a more practical approach for future research.
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