27 citations · 77 across the 7 of their papers we have counts for
7 papers
Sensitivity bounds of a spatial Bloch-oscillations Atom Interferometer
I. Nałȩcz, L. Masi, G. Ferioli +3
We study the ultimate bounds on the sensitivity of a Bloch-oscillation atom interferometer where the external force is estimated from the measurement of the on-site atomic density.…
Characterizing quantum correlations in spin chains
Artur Niezgoda, Miłosz Panfil, Jan Chwedeńczuk
The growth in the demand for precisely crafted many-body systems of spin- particles/qubits is due to their top-notch versatility in application-oriented quantum-enhanced proto…
Multipartite-Entanglement Dynamics in Regular-to-Ergodic Transition: a Quantum-Fisher-Information approach
Karol Gietka, Jan Chwedeńczuk, Tomasz Wasak +1
The characterization of entanglement is a central problem for the study of quantum many-body dynamics. Here, we propose the quantum Fisher information as a useful tool for the stud…
Decoherence-assisted detection of entanglement of two qubit states
Jan Krzywda, Piotr Szańkowski, Jan Chwedeńczuk +1
We show that the decoherence, which in the long run destroys quantum features of a system, can be used to reveal the entanglement in a two-qubit system. To this end, we consider a…
Interferometry with independently prepared Bose-Einstein condensates
T. Wasak, P. Szańkowski, J. Chwedeńczuk
We show that it is possible to reach the sub shot-noise sensitivity of the phase estimation using two independently prepared Bose-Einstein condensates as an input of an interferome…
Rabi Interferometry and Sensitive Measurement of the Casimir-Polder Force with Ultra-Cold Gases
Jan Chwedeńczuk, Luca Pezzé, Francesco Piazza +1
We show that Rabi oscillations of a degenerate fermionic or bosonic gas trapped in a double-well potential can be exploited for the interferometric measurement of external forces a…
Intensity of parametric fluorescence pumped by ultrashort pulses
Jan Chwedeńczuk, Wojciech Wasilewski
We investigate intensity of the parametric down conversion of ultrashort, ultraviolet pulse both in a low- and high-conversion regime. In the first regime, we develop a simple anal…