Photon Sorting, Efficient Bell Measurements and a Deterministic CZ Gate using a Passive Two-level Nonlinearity

@inproceedings{TCRalph2015PhotonSE,
  title={Photon Sorting, Efficient Bell Measurements and a Deterministic CZ Gate using a Passive Two-level Nonlinearity},
  author={T.C.Ralph and I.Sollner and S.Mahmoodian and A.G.White and P.Lodahl},
  year={2015}
}
Although the strengths of optical non-linearities available experimentally have been rapidly increasing in recent years, significant challenges remain to using such non-linearities to produce useful quantum devices such as efficient optical Bell state analysers or universal quantum optical gates. Here we describe a new approach that avoids the current limitations by combining strong non-linearities with active Gaussian operations in efficient protocols for Bell state analysers and Controlled… 

Figures from this paper

Cavity quantum electrodynamics with a single molecule: Purcell enhancement, strong coupling and single-photon nonlinearity

Control of light–matter coupling at the quantum level is an enabling technique for many emerging quantum technologies. This tutorial describes recent advances in achieving efficient coupling of light

New directions in optical quantum computing

  • T. Ralph
  • Physics
    2015 11th Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)
  • 2015
We will discuss new sampling algorithms that are hard for classical computers but can be solved with linear optical quantum processors and techniques for implementing universal quantum gates using

Large Purcell enhancement with nanoscale non-reciprocal photon transmission in chiral gap-plasmon-emitter systems.

A gap-plasmon-emitter system demonstrating large Purcell enhancement with effective nanoscale non-reciprocal photon transmission offers an efficient way for photon routing in optical circuits and quantum networks and also extends methods for manipulating non-Reciprocal devices.

Roadmap on all-optical processing

The Roadmap is organized so as to put side by side contributions on different aspects of optical processing, aiming to enhance the cross-contamination of ideas between scientists working in three different fields of photonics: optical gates and logical units, high bit-rate signal processing and optical quantum computing.

Universitet Roadmap on all-optical processing

The ability to process optical signals without passing into the electrical domain has always attracted the attention of the research community. Processing photons by photons unfolds new scenarios, in

Quantum-dot based photonic quantum networks

Quantum dots (QDs) embedded in photonic nanostructures have in recent years proven to be a very powerful solid-state platform for quantum optics experiments. The combination of near-unity radiative

References

SHOWING 1-10 OF 20 REFERENCES

Nature 409

  • 46
  • 2001

Phys

  • Rev. A 90, 030302(R)
  • 2014

Phys

  • Rev. Lett. 96, 043602 (2006); G. Hétet, J. J. Longdell, A. L. Alexander, P. K. Lam and M. J. Sellars, Phys. Rev. Lett. 100, 023601
  • 2008

Nature 465

  • 1052 (2010); M. Hosseini, B. M. Sparkes, G. Campbell, P. K. Lam and B. C. Buchler, Nature Commun. 2, 174
  • 2011

New Journal of Physics The

  • Physics
  • 2007

Phys

  • Rev. Lett. 108, 263601
  • 2012

Nature Commun

  • 5, 3240
  • 2014

Nature Commun

  • 5, 3808
  • 2014

Phys

  • Rev. A, 73, 062305
  • 2006

Submitted)

  • 2014