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- Publisher Website: 10.1103/PhysRevX.11.021014
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Article: Fundamental Energy Requirement of Reversible Quantum Operations
Title | Fundamental Energy Requirement of Reversible Quantum Operations |
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Authors | |
Issue Date | 2021 |
Citation | Physical Review X, 2021, v. 11, n. 2, article no. 021014 How to Cite? |
Abstract | Landauer's principle asserts that any computation has an unavoidable energy cost that grows proportionally to its degree of logical irreversibility. But even a logically reversible operation, when run on a physical processor that operates on different energy levels, requires energy. Here we quantify this energy requirement, providing upper and lower bounds that coincide up to a constant factor. We derive these bounds from a general quantum resource-theoretic argument, which implies that the initial resource requirement for implementing a unitary operation within an error ϵ grows like 1/ϵ times the amount of resource generated by the operation. Applying these results to quantum circuits, we find that their energy requirement can, by an appropriate design, be made independent of their time complexity. |
Persistent Identifier | http://hdl.handle.net/10722/303777 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Chiribella, Giulio | - |
dc.contributor.author | Yang, Yuxiang | - |
dc.contributor.author | Renner, Renato | - |
dc.date.accessioned | 2021-09-15T08:26:00Z | - |
dc.date.available | 2021-09-15T08:26:00Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | Physical Review X, 2021, v. 11, n. 2, article no. 021014 | - |
dc.identifier.uri | http://hdl.handle.net/10722/303777 | - |
dc.description.abstract | Landauer's principle asserts that any computation has an unavoidable energy cost that grows proportionally to its degree of logical irreversibility. But even a logically reversible operation, when run on a physical processor that operates on different energy levels, requires energy. Here we quantify this energy requirement, providing upper and lower bounds that coincide up to a constant factor. We derive these bounds from a general quantum resource-theoretic argument, which implies that the initial resource requirement for implementing a unitary operation within an error ϵ grows like 1/ϵ times the amount of resource generated by the operation. Applying these results to quantum circuits, we find that their energy requirement can, by an appropriate design, be made independent of their time complexity. | - |
dc.language | eng | - |
dc.relation.ispartof | Physical Review X | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.title | Fundamental Energy Requirement of Reversible Quantum Operations | - |
dc.type | Article | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1103/PhysRevX.11.021014 | - |
dc.identifier.scopus | eid_2-s2.0-85105764564 | - |
dc.identifier.hkuros | 330854 | - |
dc.identifier.volume | 11 | - |
dc.identifier.issue | 2 | - |
dc.identifier.spage | article no. 021014 | - |
dc.identifier.epage | article no. 021014 | - |
dc.identifier.eissn | 2160-3308 | - |
dc.identifier.isi | WOS:000641040500001 | - |