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9 papers
Attaining Quantum Sensing Enhancement from Monitored Dissipative Time Crystals
Eoin O'Connor, Victor Montenegro, Francesco Albarelli +3
This study investigates quantum-enhanced parameter estimation through continuous monitoring in open quantum systems that exhibit a dissipative time crystal phase. We first analytic…
Overcoming Quantum Metrology Singularity through Sequential Measurements
Yaoling Yang, Victor Montenegro, Abolfazl Bayat
The simultaneous estimation of multiple unknown parameters is the most general scenario in quantum sensing. Quantum multi-parameter estimation theory provides fundamental bounds on…
Quantum error correction for multiparameter metrology
Mauricio Gutiérrez, Chiranjib Mukhopadhyay, Victor Montenegro +1
For single-parameter sensing, Greenberger-Horne-Zeilinger (GHZ) probes achieve optimal quantum-enhanced precision across the unknown parameter range, solely relying on parameter-in…
Stroboscopic Saturation of Multiparameter Quantum Limits in Distributed Quantum Sensing
Berihu Teklu, Victor Montenegro
High-precision sensors that exploit uniquely quantum phenomena have been shown to surpass the standard quantum limit of measurement precision. However, in the general scenario wher…
Near-Ultimate Quantum-Enhanced Sensitivity in Dissipative Critical Sensing with Partial Access
Dingwei Zhao, Abolfazl Bayat, Victor Montenegro
Quantum sensors are powerful devices that exploit quantum effects to detect minute quantities with extremely high precision. Two obstacles to harnessing the full capacity of quantu…
Enhanced quantum frequency estimation by nonlinear scrambling
Victor Montenegro, Sara Dornetti, Alessandro Ferraro +1
Frequency estimation, a cornerstone of basic and applied sciences, has been significantly enhanced by quantum sensing strategies. Despite breakthroughs in quantum-enhanced frequenc…