191 citations · 2.5k across the 66 of their papers we have counts for
Showing 2022 · quant-phShow all
2 papers · 2 filters
quant-ph2022
Spin-spin coupling-based quantum and classical phase transitions in two-impurity spin-boson models
Roberto Grimaudo, Antonino Messina, Hiromichi Nakazato +2
The class of two-interacting-impurity spin-boson models with vanishing transverse fields on the spin-pair is studied. The model can be exactly mapped into two independent standard…
quant-ph2022★ 2 cited
Multiparameter quantum critical metrology
Giovanni Di Fresco, Bernardo Spagnolo, Davide Valenti +1
Single parameter estimation is known to benefit from extreme sensitivity to parameter changes in quantum critical systems. However, the simultaneous estimation of multiple paramete…