# Experimental Application of Decoherence-Free Subspaces in an Optical Quantum-Computing Algorithm

> For a practical quantum computer to operate, it is essential to properly manage decoherence. One important technique for doing this is the use of "decoherence-free subspaces" (DFSs), which have recently been demonstrated. Here we present the first use of DFSs to improve the performance of a quantum ...

## Metadata
- Authors: Masoud Mohseni, Jeff S. Lundeen, Katharina Resch, Aephraim M. Steinberg
- Journal: Physical Review Letters
- Published: 2003-10-31
- DOI: https://doi.org/10.1103/physrevlett.91.187903
- Citations: 161
- Source: OpenAlex
- Access: Open Access

## Technology Hub
- Hub: Quantum Computing
- Discipline: Physics / Computer Science
- Hub URL: https://science-database.com/technology/quantum-computing
- Hub llms.txt: https://science-database.com/technology/quantum-computing/llms.txt

## Abstract
For a practical quantum computer to operate, it is essential to properly manage decoherence. One important technique for doing this is the use of "decoherence-free subspaces" (DFSs), which have recently been demonstrated. Here we present the first use of DFSs to improve the performance of a quantum algorithm. An optical implementation of the Deutsch-Jozsa algorithm can be made insensitive to a particular class of phase noise by encoding information in the appropriate subspaces; we observe a reduction of the error rate from 35% to 7%, essentially its value in the absence of noise.

## Links
- DOI: https://doi.org/10.1103/physrevlett.91.187903
- OpenAlex: https://openalex.org/W2036245140
- PDF: https://arxiv.org/pdf/quant-ph/0212134
- JSON API: https://science-database.com/api/v1/technology/quantum-computing

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Paper ID: oa-W2036245140 | Hub: quantum-computing