Realization of four-state qudits using biphotons

E. V. Moreva; G. A. Maslennikov; S. S. Straupe; S. P. Kulik

Realization of four-state qudits using biphotons

Quantum Physics 2007-05-23 v2

Authors: E. V. Moreva , G. A. Maslennikov , S. S. Straupe , S. P. Kulik

Abstract

The novel experimental realization of four-level optical quantum systems (ququarts) is presented. We exploit the polarization properties of frequency non-degenerate biphoton field to obtain such systems. A simple method that does not rely on interferometer is used to generate and measure the sequence of states that can be used in quantum key distribution (QKD) protocol.

Keywords

quantum photonics quantum optics and quantum information quantum optics

Cite

@article{arxiv.quant-ph/0601091,
  title  = {Realization of four-state qudits using biphotons},
  author = {E. V. Moreva and G. A. Maslennikov and S. S. Straupe and S. P. Kulik},
  journal= {arXiv preprint arXiv:quant-ph/0601091},
  year   = {2007}
}

Comments

4 pages, 3 figures

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