Energy-saving fast-forward scaling
We propose energy-saving fast-forward scaling. Fast-forward scaling is a method which enables us to speed up (or slow down) given dynamics in a certain measurement basis. We introduce energy costs of fast-forward scaling, and find possibility of energy-saving speedup for time-independent measurement...
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| Format: | Article |
| Language: | English |
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SciPost
2025-02-01
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| Series: | SciPost Physics Core |
| Online Access: | https://scipost.org/SciPostPhysCore.8.1.019 |
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| _version_ | 1823858564668588032 |
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| author | Takuya Hatomura |
| author_facet | Takuya Hatomura |
| author_sort | Takuya Hatomura |
| collection | DOAJ |
| description | We propose energy-saving fast-forward scaling. Fast-forward scaling is a method which enables us to speed up (or slow down) given dynamics in a certain measurement basis. We introduce energy costs of fast-forward scaling, and find possibility of energy-saving speedup for time-independent measurement bases. As concrete examples, we show such energy-saving fast-forward scaling in a two-level system and quantum annealing of a general Ising spin glass. We also discuss the influence of a time-dependent measurement basis, and give a remedy for unwanted energy costs. The present results pave the way for realization of energy-efficient quantum technologies. |
| format | Article |
| id | doaj-art-91418c0bd075410985b044fd043772d0 |
| institution | Kabale University |
| issn | 2666-9366 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | SciPost |
| record_format | Article |
| series | SciPost Physics Core |
| spelling | doaj-art-91418c0bd075410985b044fd043772d02025-02-11T11:00:04ZengSciPostSciPost Physics Core2666-93662025-02-018101910.21468/SciPostPhysCore.8.1.019Energy-saving fast-forward scalingTakuya HatomuraWe propose energy-saving fast-forward scaling. Fast-forward scaling is a method which enables us to speed up (or slow down) given dynamics in a certain measurement basis. We introduce energy costs of fast-forward scaling, and find possibility of energy-saving speedup for time-independent measurement bases. As concrete examples, we show such energy-saving fast-forward scaling in a two-level system and quantum annealing of a general Ising spin glass. We also discuss the influence of a time-dependent measurement basis, and give a remedy for unwanted energy costs. The present results pave the way for realization of energy-efficient quantum technologies.https://scipost.org/SciPostPhysCore.8.1.019 |
| spellingShingle | Takuya Hatomura Energy-saving fast-forward scaling SciPost Physics Core |
| title | Energy-saving fast-forward scaling |
| title_full | Energy-saving fast-forward scaling |
| title_fullStr | Energy-saving fast-forward scaling |
| title_full_unstemmed | Energy-saving fast-forward scaling |
| title_short | Energy-saving fast-forward scaling |
| title_sort | energy saving fast forward scaling |
| url | https://scipost.org/SciPostPhysCore.8.1.019 |
| work_keys_str_mv | AT takuyahatomura energysavingfastforwardscaling |