Role of entanglement in two-photon imaging.
The use of entangled photons in an imaging system can exhibit effects that cannot be mimicked by any other two-photon source, whatever the strength of the correlations between the two photons. We consider a two-photon imaging system in which one photon is used to probe a remote (transmissive or scattering) object, while the other serves as a reference. We discuss the role of entanglement versus correlation in such a setting, and demonstrate that entanglement is a prerequisite for achieving distributed quantum imaging.
Abouraddy
A F
AF
Quantum Imaging Laboratory, Department of Electrical & Computer Engineering, Boston University, 8 Saint Mary's Street, Boston, MA 02215-2421, USA.
Saleh
B E
BE
Sergienko
A V
AV
Teich
M C
MC