Simple scheme for universal linear-optics quantum computing with constant experimental complexity using fiber loops

Publication Type:
Journal Article
Physical Review A - Atomic, Molecular, and Optical Physics, 2015, 91 (1)
Issue Date:
Filename Description Size
1410.0433v1.pdfSubmitted Version792.67 kB
Adobe PDF
Full metadata record
© 2015 American Physical Society. Recently, Motes, Gilchrist, Dowling, and Rohde [Phys. Rev. Lett. 113, 120501 (2014).PRLTAO0031-900710.1103/PhysRevLett.113.120501] presented a scheme for photonic boson sampling using a fiber-loop architecture. Here we show that the same architecture can be modified to implement full, universal linear-optics quantum computing, in various incarnations. The scheme employs two embedded fiber loops, a single push-button photon source, three dynamically controlled beamsplitters, and a single time-resolved photodetector. The architecture has only a single point of interference, and thus may be significantly easier to align than other schemes. The experimental complexity of the scheme is constant, irrespective of the size of the computation, limited only by fiber lengths and their respective loss rates.
Please use this identifier to cite or link to this item: