41 citations · 117 across the 5 of their papers we have counts for
9 papers
Quantum Fisher information maximization in an unbalanced interferometer
Stefan Ataman
In this paper we provide the answer to the following question: given an arbitrary pure input state and a general, unbalanced, Mach-Zehnder interferometer, what transmission coeffic…
Single- versus two-parameter Fisher information in quantum interferometry
Stefan Ataman
In this paper we reconsider the single parameter quantum Fisher information (QFI) and compare it with the two-parameter one. We find simple relations connecting the single paramete…
OAM tomography with Heisenberg-Weyl observables
Alexandra Maria Palici, Tudor-Alexandru Isdraila, Stefan Ataman +1
Photons carrying orbital angular momentum (OAM) are excellent qudits and are widely used in several applications, such as long distance quantum communication, -dimensional telep…
Optimal Mach-Zehnder phase sensitivity with Gaussian states
Stefan Ataman
We address in this work the phase sensitivity of a Mach-Zehnder interferometer with Gaussian input states. A squeezed-coherent plus squeezed vacuum input state allows us to unambig…
Phase sensitivity for an unbalanced interferometer without input phase-matching restrictions
Anca Preda, Stefan Ataman
The Cramér-Rao bound and the quantum Fisher information have been tools used extensively for interferometric phase sensitivity. Most scenarios considering a Mach-Zehnder interferom…
Phase sensitivity of a Mach-Zehnder interferometer with single-intensity and difference-intensity detection
Stefan Ataman, Anca Preda, Radu Ionicioiu
Interferometry is a widely-used technique for precision measurements in both classical and quantum contexts. One way to increase the precision of phase measurements, for example in…