Logical Bell state measurements with maximum loss-tolerance threshold using linear optics

Quantum 2.0 Conference and Exhibition, pp. QTu3B.6

Abstract

We show that linear optical logical Bell state measurements—a ubiquitous primitive for quantum information processing—can be realized with theoretically maximum photon loss tolerance (50%), overcoming the previous limit, believed to be at 1/√2.

Authors 4

1. Paul Hilaire corresponding Aachen Huygens-Kamerlingh Onnes Laboratory

   Leiden University · Virginia Tech

   Affiliation as printed

   Department of Physics, Virginia Tech, Blacksburg, Virginia 24061, USA

   Huygens-Kamerlingh Onnes Laboratory, Leiden University, P.O. Box 9504, 2300 RA Leiden, The Netherlands

2. Edwin Barnes corresponding

   Virginia Tech

   Affiliation as printed

   Department of Physics, Virginia Tech, Blacksburg, Virginia 24061, USA

3. Sophia E. Economou corresponding

   Virginia Tech

   Affiliation as printed

   Department of Physics, Virginia Tech, Blacksburg, Virginia 24061, USA

4. Frédéric Grosshans corresponding

   Centre National de la Recherche Scientifique · Sorbonne Université · LIP6

   Affiliation as printed

   Sorbonne Université, CNRS, LIP6, F-75005 Paris, France