TY  - JOUR
AU  - Baamara, Y.
AU  - Gessner, M.
AU  - Sinatra, A.
PY  - 2023
DA  - 2023//
TI  - Quantum-enhanced multiparameter estimation and compressed sensing of a field
T2  - SciPost Phys.
JO  - Scipost Physics
SP  - 050
EP  - 18pp
VL  - 14
IS  - 3
PB  - Scipost Foundation
AB  - We show that a significant quantum gain corresponding to squeezed or over-squeezed spin states can be obtained in multiparameter estimation by measuring the Hadamard coefficients of a 1D or 2D signal. The physical platform we consider consists of twolevel atoms in an optical lattice in a squeezed-Mott configuration, or more generally by correlated spins distributed in spatially separated modes. Our protocol requires the possibility to locally flip the spins, but relies on collective measurements. We give examples of applications to scalar or vector field mapping and compressed sensing.
SN  - 2542-4653
UR  - https://arxiv.org/abs/2208.00640
UR  - https://doi.org/10.21468/SciPostPhys.14.3.050
DO  - 10.21468/SciPostPhys.14.3.050
LA  - English
N1  - WOS:000974981200008
ID  - Baamara_etal2023
ER  -