3 papers
quant-ph2026
Quantum Fisher information and imperfect detection in a monitored fermion chain
Giovanni Di Fresco, Davide Valenti, Angelo Carollo
We study the metrological properties of a continuously monitored Kitaev chain in the presence of imperfect detection. The system is conditioned on a no-click record, while each emi…
nlin.PS2025
Effects of correlated noise on the excitation of robust breathers in an ac-driven, lossy sine-Gordon system
Giovanni Di Fresco, Duilio De Santis, Claudio Guarcello +3
Thermal noise and harmonic forcing have recently been shown to cooperatively excite sine-Gordon breathers robust to dissipation. Such a phenomenon has been found assuming a Gaussia…
quant-ph2025
Quantum optics with giant atoms in a structured photonic bath
L. Leonforte, X. Sun, D. Valenti +4
We present a general framework to tackle quantum optics problems with giant atoms, i.e. quantum emitters each coupled {\it non-locally} to a structured photonic bath (typically a l…