The Boundary Time Crystal as a light source for collectively enhanced sensing

arXiv:2511.23416 · quant-ph · Submitted 2025-11-28 · Read on arXiv

quant-ph

Submitted: 2025-11-28

Updated: 2026-08-13

Code: https://github.com/malikjirasek/optical-phaseestimation-with-the-boundary-time-crystal

Terminology

• Fisher Information — 11× in this paper · explained in 3 episodes
• Benchmark — 7× in this paper · explained in 2 episodes
• Lindblad master equation — 7× in this paper · explained in 2 episodes
• Temporal Correlations — 7× in this paper · explained in 2 episodes
• Superradiance — 4× in this paper · explained in 3 episodes
• Hilbert Space — 3× in this paper · explained in 2 episodes
• Symmetry Breaking — 3× in this paper · explained in 3 episodes
• Adam — 2× in this paper · explained in 2 episodes
• Phase Transitions — 2× in this paper · explained in 2 episodes
• System Identification — 2× in this paper · explained in 3 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Decode — 1× in this paper · explained in 2 episodes
• Heisenberg Scaling — 1× in this paper · explained in 4 episodes
• Hubbard Model — 1× in this paper · explained in 3 episodes
• Mean-Field Dynamics — 1× in this paper · explained in 2 episodes
• Non-Markovian Dynamics — 1× in this paper · explained in 5 episodes
• Non-stationarity — 1× in this paper · explained in 2 episodes
• Quantum Trajectories — 1× in this paper · explained in 2 episodes
• Self-consistency — 1× in this paper · explained in 2 episodes

Sources

• Parameter estimation with one- and two-time measurements on the emission field of the boundary time crystal
• Designing open quantum systems for enabling quantum enhanced sensing through classical measurements
• Attaining Quantum Sensing Enhancement from Monitored Dissipative Time Crystals
• Parameter estimation for quantum jump unraveling
• Analytical solution of boundary time crystals via the superspin basis
• QuTiP 5: The Quantum Toolbox in Python
• Estimating quantum Markov chains using coherent absorber post-processing and pattern counting estimator
• Boundary Time Crystals Induced by Local Dissipation and Long-Range Interactions

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