Seminar on Tues., 7 December

[ivanisse]

JOINT ICTP/SISSA STATISTICAL PHYSICS SEMINAR


Tuesday, 7 December    -    11:00 a.m.


SISSA, Santorio Building, Room 129 (1st Floor)


Ugo Marzolino  (Università di Trieste)


" Sub-shot-noise quantum metrology and squeezing inequalities with 
entangled identical particles "


Abstract

By identifying non-local effects in systems of identical Bosonic qubits 
through correlations of their commuting observables, we generalize and 
physically reinterpret the results concerning the use of the quantum 
Fisher information and spin squeezing in quantum metrology.  We show 
that entanglement is not necessary to violate certain squeezing 
inequalities that hold for distinguishable qubits and that spin 
squeezing may not be necessary to achieve sub-shot noise accuracies in 
ultra-cold atom interferometry.