3 papers
quant-ph2026
Exponentially-improved effective descriptions of physical bosonic systems
Varun Upreti, Nicolás Quesada, Ulysse Chabaud
The effective description of a bosonic quantum system identifies the minimum finite dimension required to capture its essential dynamics. This effective dimension plays an importan…
quant-ph2025
Optimal Waveforms for Dipole Moment Estimation with Coherent States
Karthik Chinni, Nicolás Quesada
We investigate quantum sensing for spectroscopy in a system consisting of a two-level atom coupled to a continuum of modes. We focus on optimizing the pulse shape of a coherent sta…
quant-ph2024
Linear cross-entropy certification of quantum computational advantage in Gaussian Boson Sampling
Javier MartÃnez-Cifuentes, Hubert de Guise, Nicolás Quesada
Validation of quantum advantage claims in the context of Gaussian Boson Sampling (GBS) currently relies on providing evidence that the experimental samples genuinely follow their c…