• DOI:10.1103/PhysRevLett.120.080401
• Corpus ID: 3925265

Generalized Probabilistic Description of Noninteracting Identical Particles.

@article{Karczewski2018GeneralizedPD,
  title={Generalized Probabilistic Description of Noninteracting Identical Particles.},
  author={Marcin Karczewski and Marcin Markiewicz and Dagomir Kaszlikowski and Paweł Kurzyński},
  journal={Physical review letters},
  year={2018},
  volume={120 8},
  pages={
          080401
        }
}

• Marcin Karczewski, M. Markiewicz, +1 author P. Kurzyński
• Published 7 June 2017
• Physics, Medicine
• Physical review letters

We investigate an operational description of identical noninteracting particles in multiports. In particular, we look for physically motivated restrictions that explain their bunching probabilities. We focus on a symmetric 3-port in which a triple of superquantum particles admitted by our generalized probabilistic framework would bunch with a probability of 3/4. The bosonic bound of 2/3 can then be restored by imposing the additional requirement of product evolution of certain input states. These states are characterized by the fact that, much like product states, their entropy equals the sum of entropies of their one-particle substates. This principle is, however, not enough to exclude the possibility of superquantum particles in higher-order multiports.