3 papers
quant-ph2025
Metrological Sensitivity beyond Gaussian Limits with Cubic Phase States
Jiajie Guo, Shuheng Liu, Boxuan Jing +2
Cubic phase states provide the essential non-Gaussian resource for continuous-variable quantum computing. We show that they also offer significant potential for quantum metrology,…
quant-ph2025
Differential magnetometry with partially flipped Dicke states
Iagoba Apellaniz, Manuel Gessner, Géza Tóth
We study magnetometry of gradients and homogeneous background fields along the three orthogonal directions using two spatially separated spin ensembles. We derive trade-off relatio…
quant-ph2025
Spinor Bose-Einstein condensate as an analog simulator of molecular bending vibrations
Ayaka Usui, Artur Niezgoda, Manuel Gessner
We demonstrate that spinor Bose-Einstein condensates (BEC) can be operated as an analog simulator of the two-dimensional vibron model. This algebraic model for the description of b…