Abstract
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.
- Received 26 October 2011
DOI:https://doi.org/10.1103/PhysRevLett.108.010502
© 2012 American Physical Society
Synopsis
Quantum Pairs Walking
Published 5 January 2012
Researchers demonstrate quantum random walks of photon pairs that interact like bosons, fermions, or anything in between, which could be used to simulate other quantum systems.
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