249 citations · 565 across the 9 of their papers we have counts for
9 papers
Beat-to-Beat Fetal Heart Rate Analysis Using Portable Medical Device and Wavelet Transformation Technique
Maria Farahi, Alicia Casals, Omid Sarrafzadeh +4
A beat-to-beat Tele-fetal Monitoring and comparison with clinical data are studied with a wavelet transformation approach. Tele-fetal monitoring is a big progress toward a wearable…
Generation of macroscopic singlet states in a cold atomic ensemble
N. Behbood, F. Martin Ciurana, G. Colangelo +4
We report the generation of a macroscopic singlet state in a cold atomic sample via quantum non-demolition (QND) measurement induced spin squeezing. We observe 3 dB of spin squeezi…
Ultrasensitive Atomic Spin Measurements with a Nonlinear Interferometer
R. J. Sewell, M. Napolitano, N. Behbood +3
We study nonlinear interferometry applied to a measurement of atomic spin and demonstrate a sensitivity that cannot be achieved by any linear-optical measurement with the same expe…
Feedback-cooling of an atomic spin ensemble
N. Behbood, M. Napolitano, G. Colangelo +4
We describe a measurement-and-feedback technique to deterministically prepare low-entropy states of atomic spin ensembles. Using quantum non-demolition measurement and incoherent o…
Quantum atom-light interfaces in the gaussian description for spin-1 systems
Giorgio Colangelo, Robert J. Sewell, Naeimeh Behbood +2
We extend the covariance-matrix description of atom--light quantum interfaces, originally developed for real and effective spin-1/2 atoms, to include "spin alignment" degrees of fr…
Real-time vector field tracking with a cold-atom magnetometer
Naeimeh Behbood, Ferran Martin Ciurana, Giorgio Colangelo +3
We demonstrate a fast three-axis optical magnetometer using cold, optically-trapped Rb gas as a sensor. By near-resonant Faraday rotation we record the free-induction decay…
Efficient quantification of non-Gaussian spin distributions
B. Dubost, M. Koschorreck, M. Napolitano +3
We study theoretically and experimentally the quantification of non-Gaussian distributions via non-destructive measurements. Using the theory of cumulants, their unbiased estimator…
Interaction-based quantum metrology showing scaling beyond the Heisenberg limit
M. Napolitano, M. Koschorreck, B. Dubost +3
Quantum metrology studies the use of entanglement and other quantum resources to improve precision measurement. An interferometer using N independent particles to measure a paramet…
GHZ and W Entanglement Witnesses for the Non-interacting Fermi gas
Hessam Habibian, John W. Clark, Naeimeh Behbood +1
The existence and nature of tripartite entanglement of a noninteracting Fermi gas (NIFG) is investigated. Three new classes of parameterized entanglement witnesses (EWs) are introd…