Noise Thresholds for Optical Quantum Computers
Abstract
In this Letter we numerically investigate the fault-tolerant threshold for optical cluster-state quantum computing. We allow both photon loss noise and depolarizing noise (as a general proxy for all local noise), and obtain a threshold region of allowed pairs of values for the two types of noise. Roughly speaking, our results show that scalable optical quantum computing is possible for photon loss probabilities <3×10-3, and for depolarization probabilities <10-4.
- Publication:
-
Physical Review Letters
- Pub Date:
- January 2006
- DOI:
- 10.1103/PhysRevLett.96.020501
- arXiv:
- arXiv:quant-ph/0509060
- Bibcode:
- 2006PhRvL..96b0501D
- Keywords:
-
- 03.67.Lx;
- 42.50.Dv;
- Quantum computation;
- Nonclassical states of the electromagnetic field including entangled photon states;
- quantum state engineering and measurements;
- Quantum Physics
- E-Print:
- 4 pages