251 citations · 1.8k across the 79 of their papers we have counts for
10 papers · 1 filter
Nuclear spin squeezing in Helium-3 by continuous quantum nondemolition measurement
Alan Serafin, Matteo Fadel, Philipp Treutlein +1
We propose a technique to control the macroscopic collective nuclear spin of a Helium-3 vapor in the quantum regime using light. The scheme relies on metastability exchange collisi…
Nuclear spin squeezing by continuous quantum non-demolition measurement: a theoretical study
Alan Serafin, Yvan Castin, Matteo Fadel +2
We propose to take advantage of the weak coupling of ground-state helium-3 nuclear spin to its environment to produce long-lived macroscopic quantum states, nuclear spin squeezed s…
Metrological complementarity reveals the Einstein-Podolsky-Rosen paradox
Benjamin Yadin, Matteo Fadel, Manuel Gessner
The Einstein-Podolsky-Rosen (EPR) paradox plays a fundamental role in our understanding of quantum mechanics, and is associated with the possibility of predicting the results of no…
Remote state preparation of two-component Bose-Einstein condensates
Manish Chaudhary, Matteo Fadel, Ebubechukwu O. Ilo-Okeke +3
A protocol for remote state preparation is proposed for spin ensembles, where the aim is to prepare a state with a given set of spin expectation values on a remote spin ensemble us…
Bounding the fidelity of quantum many-body states from partial information
Matteo Fadel, Albert Aloy, Jordi Tura
We formulate an algorithm to lower bound the fidelity between quantum many-body states only from partial information, such as the one accessible by few-body observables. Our method…
Normalized Gaussian Path Integrals
Giulio Corazza, Matteo Fadel
Path integrals play a crucial role in describing the dynamics of physical systems subject to classical or quantum noise. In fact, when correctly normalized, they express the probab…
Fundamental limit of phase coherence in two-component Bose-Einstein condensates
Yifan Li, Krzysztof Pawłowski, Boris Décamps +4
We experimentally and theoretically study phase coherence in two-component Bose-Einstein condensates of atoms on an atom chip. Using Ramsey interferometry we measur…
Relating spin squeezing to multipartite entanglement criteria for particles and modes
Matteo Fadel, Manuel Gessner
Entanglement witnesses based on first and second moments exist in the form of spin-squeezing criteria for the detection of particle entanglement from collective measurements, and i…
Number-phase entanglement and Einstein-Podolsky-Rosen steering
Matteo Fadel, Laura Ares, Alfredo Luis +1
We use the uncertainty relation between the operators associated to the total number of particles and to the relative phase of two bosonic modes to construct entanglement and Einst…
The quantum marginal problem for symmetric states: applications to variational optimization, nonlocality and self-testing
Albert Aloy, Matteo Fadel, Jordi Tura
In this paper, we present a method to solve the quantum marginal problem for symmetric -level systems. The method is built upon an efficient semi-definite program that determine…