594 citations · 4.1k across the 31 of their papers we have counts for
31 papers
Precision bounds for gradient magnetometry with atomic ensembles
Iagoba Apellaniz, Inigo Urizar-Lanz, Zoltan Zimboras +2
We study gradient magnetometry with an ensemble of atoms with arbitrary spin. We calculate precision bounds for estimating the gradient of the magnetic field based on the quantum F…
Phase sensitivity bounds for two-mode interferometers
Luca Pezzè, Philipp Hyllus, Augusto Smerzi
We provide general bounds of phase estimation sensitivity in linear two-mode interferometers. We consider probe states with a fluctuating total number of particles. With incoherent…
Permutationally invariant state reconstruction
Tobias Moroder, Philipp Hyllus, Geza Toth +5
Feasible tomography schemes for large particle numbers must possess, besides an appropriate data acquisition protocol, also an efficient way to reconstruct the density operator fro…
Entanglement and Extreme Spin Squeezing for a Fluctuating Number of Indistinguishable Particles
Philipp Hyllus, Luca Pezze, Augusto Smerzi +1
We extend the criteria for -particle entanglement from the spin squeezing parameter presented in [A.S. Sørensen and K. Mølmer, Phys. Rev. Lett. {\bf 86}, 4431 (2001)] to systems…
Twin matter waves for interferometry beyond the classical limit
Bernd Lücke, Manuel Scherer, Jens Kruse +10
Interferometers with atomic ensembles constitute an integral part of modern precision metrology. However, these interferometers are fundamentally restricted by the shot noise limit…
Macroscopic singlet states for gradient magnetometry
Inigo Urizar-Lanz, Philipp Hyllus, Inigo L. Egusquiza +2
We present a method for measuring magnetic field gradients with macroscopic singlet states realized with ensembles of spin-j particles. While the singlet state is completely insens…