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Scalable Network of Mach-Zehnder Interferometers with a Single Entangled Resource
Zhihui Yan, Yanni Feng, Luca Pezze +6
Distributed quantum sensing exploits entanglement to enhance the estimation of multiple parameters across a network of spatially-separated sensors, achieving sensitivities beyond t…
Hong-Ou-Mandel interference of more than 10 indistinguishable atoms
Martin Quensen, Mareike Hetzel, Luis Santos +4
When two indistinguishable bosons interfere at a beam splitter, they both exit through the same output port. This foundational quantum-mechanical phenomenon, known as the Hong-Ou-M…
Joint estimation of phase and uncorrelated dephasing in a differential quantum interferometer
Luca Pezzè, Andrea Santoni, Chiara Mazzinghi +2
Precise measurements in optical and atomic systems often rely on differential interferometry. This method allows to handle large and correlated phase noise contributions -- such as…
Advances in multiparameter quantum sensing and metrology
Luca Pezzè, Augusto Smerzi
Recent years have witnessed a growing interest in understating the limitations imposed by quantum noise in precision measurements and devising techniques to reduce it. The attentio…
Self-induced Josephson oscillations and self-trapping in a supersolid dipolar quantum gas
Beatrice Donelli, Nicolò Antolini, Giulio Biagioni +8
The Josephson effect characterizes superfluids and superconductors separated by a weak link, the so-called Josephson junction. A recent experiment has shown that Josephson oscillat…
Squeezing-enhanced accurate differential sensing under large phase noise
Robin Corgier, Marco Malitesta, Leonid A. Sidorenkov +6
Atom interferometers are reaching sensitivities fundamentally constrained by quantum fluctuations. A main challenge is to integrate entanglement into quantum sensing protocols to e…