Protocols for Creating and Distilling Multipartite GHZ States With Bell Pairs
| Autor: | Runsheng Ouyang, Kenneth Goodenough, Sebastian de Bone, David Elkouss |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Quantum Physics
Quantum network Quantum decoherence Computer science FOS: Physical sciences Quantum entanglement Distributed quantum computation Secret sharing Greenberger–Horne–Zeilinger state Computer engineering Qubit entanglement distillation TA401-492 Greenberger–Horne–Zeilinger (GHZ) states Atomic physics. Constitution and properties of matter Quantum information science Quantum Physics (quant-ph) Materials of engineering and construction. Mechanics of materials Quantum computer QC170-197 |
| Zdroj: | IEEE Transactions on Quantum Engineering, Vol 1, Pp 1-10 (2020) |
| ISSN: | 2689-1808 |
| Popis: | The distribution of high-quality Greenberger-Horne-Zeilinger (GHZ) states is at the heart of many quantum communication tasks, ranging from extending the baseline of telescopes to secret sharing. They also play an important role in error-correction architectures for distributed quantum computation, where Bell pairs can be leveraged to create an entangled network of quantum computers. We investigate the creation and distillation of GHZ states out of non-perfect Bell pairs over quantum networks. In particular, we introduce a heuristic dynamic programming algorithm to optimize over a large class of protocols that create and purify GHZ states. All protocols considered use a common framework based on measurements of non-local stabilizer operators of the target state (i.e., the GHZ state), where each non-local measurement consumes another (non-perfect) entangled state as a resource. The new protocols outperform previous proposals for scenarios without decoherence and local gate noise. Furthermore, the algorithms can be applied for finding protocols for any number of parties and any number of entangled pairs involved. |
| Databáze: | OpenAIRE |
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