Boson Sampling from a Gaussian State
Abstract
We pose a randomized bosonsampling problem. Strong evidence exists that such a problem becomes intractable on a classical computer as a function of the number of bosons. We describe a quantum optical processor that can solve this problem efficiently based on a Gaussian input state, a linear optical network, and nonadaptive photon counting measurements. All the elements required to build such a processor currently exist. The demonstration of such a device would provide empirical evidence that quantum computers can, indeed, outperform classical computers and could lead to applications.
 Publication:

Physical Review Letters
 Pub Date:
 September 2014
 DOI:
 10.1103/PhysRevLett.113.100502
 arXiv:
 arXiv:1305.4346
 Bibcode:
 2014PhRvL.113j0502L
 Keywords:

 03.67.Lx;
 03.67.Ac;
 42.50.p;
 Quantum computation;
 Quantum algorithms protocols and simulations;
 Quantum optics;
 Quantum Physics
 EPrint:
 Phys. Rev. Lett. 113, 100502 (2014)