Abstract
We report a recent experimental simulation of a controlled-NOT gate operation based on polarization correlation measurements of thermal fields in photon-number fluctuations. The interference between pairs of correlated paths at the very heart of these experiments has the potential for the simulation of correlations between a larger number of qubits.
Highlights
We report a recent experimental simulation of a controlled-NOT gate operation based on polarization correlation measurements of thermal fields in photon-number fluctuations
We have experimentally demonstrated for the first time thermal light interference between two pairs of correlated paths, where each path in a pair is spatially incoherent with the paths in the other pair
This counterintuitive effect is at the very heart of the experimental simulation of a CNOT gate operation described here
Summary
The light source is a standard pseudo-thermal source consisting of a circularly polarized 633 nm CW laser beam and a rotating ground glass (GG). A large number of circularly polarized incoherent wavepackets, or subfields, are scattered from a large number of diffusers. The control beam goes through a mask with two polarizers in the horizontal (H) and vertical (V) directions placed in front of the two pinholes Lc and Rc, respectively. The target beam passes through two pinholes Lt and Rt. A halfbwlaev-epipnlhatoeleHaWt tPhRet, interchanging the H control arm and the with the V polarization double-pinhole at the components, target arm of is placed in front of the interferometer. At each arm, the two pinholes are separated beyond the coherence length of the thermal field. The two light beams are detected at the single-photon level by the two detectors Dc and Dt after passing
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
