Reservoir engineering for maximally efficient quantum engines
We employ reservoir engineering technique to build an artificial thermal bath at arbitrary (effective) negative and positive temperatures for a single spin system. The required interaction engineering is achieved by applying a specific sequence of radio-frequency pulses using nuclear magnetic resona...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2020-12-01
|
| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.043419 |
| _version_ | 1797211115888836608 |
|---|---|
| author | Taysa M. Mendonça Alexandre M. Souza Rogério J. de Assis Norton G. de Almeida Roberto S. Sarthour Ivan S. Oliveira Celso J. Villas-Boas |
| author_facet | Taysa M. Mendonça Alexandre M. Souza Rogério J. de Assis Norton G. de Almeida Roberto S. Sarthour Ivan S. Oliveira Celso J. Villas-Boas |
| author_sort | Taysa M. Mendonça |
| collection | DOAJ |
| description | We employ reservoir engineering technique to build an artificial thermal bath at arbitrary (effective) negative and positive temperatures for a single spin system. The required interaction engineering is achieved by applying a specific sequence of radio-frequency pulses using nuclear magnetic resonance, while the temperature of the bath can be controlled by appropriate preparation of the initial ^{1}H nuclear spin state. This artificial reservoir allowed us to implement a single qubit quantum engine that operates at a single reservoir at effective negative temperature and with maximum efficiency, independent of the unitary transformation performed on the qubit system, as long as it changes the qubit state. We measured the population of the carbon spin and the efficiency of our quantum engine, which are in very good agreement with the predicted results. |
| first_indexed | 2024-04-24T10:21:22Z |
| format | Article |
| id | doaj.art-2879ede251e3482aa2f48066597233c8 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:21:22Z |
| publishDate | 2020-12-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-2879ede251e3482aa2f48066597233c82024-04-12T17:05:43ZengAmerican Physical SocietyPhysical Review Research2643-15642020-12-012404341910.1103/PhysRevResearch.2.043419Reservoir engineering for maximally efficient quantum enginesTaysa M. MendonçaAlexandre M. SouzaRogério J. de AssisNorton G. de AlmeidaRoberto S. SarthourIvan S. OliveiraCelso J. Villas-BoasWe employ reservoir engineering technique to build an artificial thermal bath at arbitrary (effective) negative and positive temperatures for a single spin system. The required interaction engineering is achieved by applying a specific sequence of radio-frequency pulses using nuclear magnetic resonance, while the temperature of the bath can be controlled by appropriate preparation of the initial ^{1}H nuclear spin state. This artificial reservoir allowed us to implement a single qubit quantum engine that operates at a single reservoir at effective negative temperature and with maximum efficiency, independent of the unitary transformation performed on the qubit system, as long as it changes the qubit state. We measured the population of the carbon spin and the efficiency of our quantum engine, which are in very good agreement with the predicted results.http://doi.org/10.1103/PhysRevResearch.2.043419 |
| spellingShingle | Taysa M. Mendonça Alexandre M. Souza Rogério J. de Assis Norton G. de Almeida Roberto S. Sarthour Ivan S. Oliveira Celso J. Villas-Boas Reservoir engineering for maximally efficient quantum engines Physical Review Research |
| title | Reservoir engineering for maximally efficient quantum engines |
| title_full | Reservoir engineering for maximally efficient quantum engines |
| title_fullStr | Reservoir engineering for maximally efficient quantum engines |
| title_full_unstemmed | Reservoir engineering for maximally efficient quantum engines |
| title_short | Reservoir engineering for maximally efficient quantum engines |
| title_sort | reservoir engineering for maximally efficient quantum engines |
| url | http://doi.org/10.1103/PhysRevResearch.2.043419 |
| work_keys_str_mv | AT taysammendonca reservoirengineeringformaximallyefficientquantumengines AT alexandremsouza reservoirengineeringformaximallyefficientquantumengines AT rogeriojdeassis reservoirengineeringformaximallyefficientquantumengines AT nortongdealmeida reservoirengineeringformaximallyefficientquantumengines AT robertossarthour reservoirengineeringformaximallyefficientquantumengines AT ivansoliveira reservoirengineeringformaximallyefficientquantumengines AT celsojvillasboas reservoirengineeringformaximallyefficientquantumengines |