2025 LIGO SURF: Numerical Simulation of Quantum Enhanced Interferometer Readout

Document #:

LIGO-T2500249-v4

Document type:

T - Technical notes

Abstract:

This project investigates optimizing atom-light interactions in a quantum cavity system to enhance measurement precision for quantum gravity experiments. Using the Jaynes-Cummings Hamiltonian, simulations of one- and two-atom one-cavity systems were performed with Julia s QuantumToolbox to study energy transfer and calculate Quantum Fisher Information (QFI). Results demonstrate successful energy transfer between atoms through the cavity and highlight the impact of coupling parameters on system behavior. Challenges include mastering Julia programming and refining models to better represent experimental conditions. Future work will focus on improving QFI computation efficiency and extending simulations to more realistic atomic structures and cavity dynamics.

Files in Document:

• Final Presentation (slides.pdf, 3.2 MB)

Other Files:

• Final Paper (LIGO_Final_Report (2).pdf, 9.1 MB)

Topics:

• Basic R&D

Authors:

• Jeffrey Wack
• Lee McCuller
• Reilly Loughman

Keywords:

SURF2025

Referenced by:

• LIGO-T2500396: SURF 2025 Final Projects