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- Publisher Website: 10.1103/PhysRevLett.116.080501
- Scopus: eid_2-s2.0-84959432946
- PMID: 26967400
- WOS: WOS:000370815100002
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Article: Efficient Quantum Compression for Ensembles of Identically Prepared Mixed States
| Title | Efficient Quantum Compression for Ensembles of Identically Prepared Mixed States |
|---|---|
| Authors | |
| Issue Date | 2016 |
| Publisher | American Physical Society. The Journal's web site is located at http://prl.aps.org |
| Citation | Physical Review Letters, 2016, v. 116 n. 8, article no. 080501 How to Cite? |
| Abstract | We present one-shot compression protocols that optimally encode ensembles of N identically prepared mixed states into O(logN) qubits. In contrast to the case of pure-state ensembles, we find that the number of encoding qubits drops down discontinuously as soon as a nonzero error is tolerated and the spectrum of the states is known with sufficient precision. For qubit ensembles, this feature leads to a 25% saving of memory space. Our compression protocols can be implemented efficiently on a quantum computer. |
| Persistent Identifier | http://hdl.handle.net/10722/230203 |
| ISSN | 2021 Impact Factor: 9.185 2020 SCImago Journal Rankings: 3.688 |
| ISI Accession Number ID |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Yang, Y | - |
| dc.contributor.author | Chiribella, G | - |
| dc.contributor.author | Ebler, D | - |
| dc.date.accessioned | 2016-08-23T14:15:42Z | - |
| dc.date.available | 2016-08-23T14:15:42Z | - |
| dc.date.issued | 2016 | - |
| dc.identifier.citation | Physical Review Letters, 2016, v. 116 n. 8, article no. 080501 | - |
| dc.identifier.issn | 0031-9007 | - |
| dc.identifier.uri | http://hdl.handle.net/10722/230203 | - |
| dc.description.abstract | We present one-shot compression protocols that optimally encode ensembles of N identically prepared mixed states into O(logN) qubits. In contrast to the case of pure-state ensembles, we find that the number of encoding qubits drops down discontinuously as soon as a nonzero error is tolerated and the spectrum of the states is known with sufficient precision. For qubit ensembles, this feature leads to a 25% saving of memory space. Our compression protocols can be implemented efficiently on a quantum computer. | - |
| dc.language | eng | - |
| dc.publisher | American Physical Society. The Journal's web site is located at http://prl.aps.org | - |
| dc.relation.ispartof | Physical Review Letters | - |
| dc.rights | Copyright 2016 by The American Physical Society. This article is available online at https://doi.org/10.1103/PhysRevLett.116.080501 | - |
| dc.title | Efficient Quantum Compression for Ensembles of Identically Prepared Mixed States | - |
| dc.type | Article | - |
| dc.identifier.email | Chiribella, G: giulio@hku.hk | - |
| dc.identifier.authority | Chiribella, G=rp02035 | - |
| dc.description.nature | published_or_final_version | - |
| dc.identifier.doi | 10.1103/PhysRevLett.116.080501 | - |
| dc.identifier.pmid | 26967400 | - |
| dc.identifier.scopus | eid_2-s2.0-84959432946 | - |
| dc.identifier.hkuros | 259988 | - |
| dc.identifier.volume | 116 | - |
| dc.identifier.issue | 8 | - |
| dc.identifier.spage | article no. 080501 | - |
| dc.identifier.epage | article no. 080501 | - |
| dc.identifier.isi | WOS:000370815100002 | - |
| dc.publisher.place | United States | - |
| dc.identifier.issnl | 0031-9007 | - |