Cooperative quantum information erasure
We demonstrate an information erasure protocol that resets $N$ qubits at once. The method displays exceptional performances in terms of energy cost (it operates nearly at Landauer energy cost $kT \ln 2$), time duration ($\sim \mu s$) and erasure success rate ($\sim 99,9\%$). The method departs from...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften
2023-03-01
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| Series: | Quantum |
| Online Access: | https://quantum-journal.org/papers/q-2023-03-23-961/pdf/ |
| _version_ | 1797861350114852864 |
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| author | Lorenzo Buffoni Michele Campisi |
| author_facet | Lorenzo Buffoni Michele Campisi |
| author_sort | Lorenzo Buffoni |
| collection | DOAJ |
| description | We demonstrate an information erasure protocol that resets $N$ qubits at once. The method displays exceptional performances in terms of energy cost (it operates nearly at Landauer energy cost $kT \ln 2$), time duration ($\sim \mu s$) and erasure success rate ($\sim 99,9\%$). The method departs from the standard algorithmic cooling paradigm by exploiting cooperative effects associated to the mechanism of spontaneous symmetry breaking which are amplified by quantum tunnelling phenomena. Such cooperative quantum erasure protocol is experimentally demonstrated on a commercial quantum annealer and could be readily applied in next generation hybrid gate-based/quantum-annealing quantum computers, for fast, effective, and energy efficient initialisation of quantum processing units. |
| first_indexed | 2024-04-09T22:02:07Z |
| format | Article |
| id | doaj.art-5bbdbf4d4c5748e699a10a71b210e0d0 |
| institution | Directory Open Access Journal |
| issn | 2521-327X |
| language | English |
| last_indexed | 2024-04-09T22:02:07Z |
| publishDate | 2023-03-01 |
| publisher | Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften |
| record_format | Article |
| series | Quantum |
| spelling | doaj.art-5bbdbf4d4c5748e699a10a71b210e0d02023-03-23T17:12:56ZengVerein zur Förderung des Open Access Publizierens in den QuantenwissenschaftenQuantum2521-327X2023-03-01796110.22331/q-2023-03-23-96110.22331/q-2023-03-23-961Cooperative quantum information erasureLorenzo BuffoniMichele CampisiWe demonstrate an information erasure protocol that resets $N$ qubits at once. The method displays exceptional performances in terms of energy cost (it operates nearly at Landauer energy cost $kT \ln 2$), time duration ($\sim \mu s$) and erasure success rate ($\sim 99,9\%$). The method departs from the standard algorithmic cooling paradigm by exploiting cooperative effects associated to the mechanism of spontaneous symmetry breaking which are amplified by quantum tunnelling phenomena. Such cooperative quantum erasure protocol is experimentally demonstrated on a commercial quantum annealer and could be readily applied in next generation hybrid gate-based/quantum-annealing quantum computers, for fast, effective, and energy efficient initialisation of quantum processing units.https://quantum-journal.org/papers/q-2023-03-23-961/pdf/ |
| spellingShingle | Lorenzo Buffoni Michele Campisi Cooperative quantum information erasure Quantum |
| title | Cooperative quantum information erasure |
| title_full | Cooperative quantum information erasure |
| title_fullStr | Cooperative quantum information erasure |
| title_full_unstemmed | Cooperative quantum information erasure |
| title_short | Cooperative quantum information erasure |
| title_sort | cooperative quantum information erasure |
| url | https://quantum-journal.org/papers/q-2023-03-23-961/pdf/ |
| work_keys_str_mv | AT lorenzobuffoni cooperativequantuminformationerasure AT michelecampisi cooperativequantuminformationerasure |