Two-particle bosonic-fermionic quantum walk via integrated photonics.
Quantum walk represents one of the most promising resources for the simulation of physical quantum systems, and has also emerged as an alternative to the standard circuit model for quantum computing. Here we investigate how the particle statistics, either bosonic or fermionic, influences a two-particle discrete quantum walk. Such an experiment has been realized by exploiting polarization entanglement to simulate the bunching-antibunching feature of noninteracting bosons and fermions. To this scope a novel three-dimensional geometry for the waveguide circuit is introduced, which allows accurate polarization independent behavior, maintaining remarkable control on both phase and balancement.
Dipartimento di Fisica, Sapienza Università di Roma, Piazzale Aldo Moro, 5, I-00185 Roma, Italy.
Linda
L
Sansoni
Fabio
F
Sciarrino
Giuseppe
G
Vallone
Paolo
P
Mataloni
Andrea
A
Crespi
Roberta
R
Ramponi
Roberto
R
Osellame