Varnava, M;
Browne, DE;
Rudolph, T;
(2007)
Loss tolerant linear optical quantum memory by measurement-based quantum computing.
New journal of physics
, 9
, Article 203. 10.1088/1367-2630/9/6/203.
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Abstract
We give a scheme for loss tolerantly building a linear optical quantum memory which itself is tolerant to qubit loss. We use the encoding recently introduced in Varnava et al 2006 Phys. Rev. Lett. 97 120501, and give a method for efficiently achieving this. The entire approach resides within the 'one-way' model for quantum computing (Raussendorf and Briegel 2001 Phys. Rev. Lett. 86 5188–91; Raussendorf et al 2003 Phys. Rev. A 68 022312). Our results suggest that it is possible to build a loss tolerant quantum memory, such that if the requirement is to keep the data stored over arbitrarily long times then this is possible with only polynomially increasing resources and logarithmically increasing individual photon life-times.
| Type: | Article |
|---|---|
| Title: | Loss tolerant linear optical quantum memory by measurement-based quantum computing |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/1367-2630/9/6/203 |
| Publisher version: | http://dx.doi.org/10.1088/1367-2630/9/6/203 |
| Language: | English |
| Additional information: | This article is from New Journal of Physics. Authors, their institutions and third parties all have the same rights to reuse articles published in New Journal of Physics in accordance with the Creative Commons Attribution 3.0 Unported (CC-BY) license. This allows the articles to be shared, adapted and made commercial use of subject to appropriate attribution. |
| Keywords: | Computation |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/21235 |
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