Coherent resonant coupling between atoms and a mechanical oscillator mediated by cavity-vacuum fluctuations
We show that an atom can be coupled to a mechanical oscillator via quantum vacuum fluctuations of a cavity field enabling energy transfer processes between them. In a hybrid quantum system consisting of a cavity resonator with a movable mirror and an atom, these processes are dominated by two pair-c...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2023-02-01
|
| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.5.013075 |
| _version_ | 1827285359897083904 |
|---|---|
| author | Bo Wang Jia-Ming Hu Vincenzo Macrì Ze-Liang Xiang Franco Nori |
| author_facet | Bo Wang Jia-Ming Hu Vincenzo Macrì Ze-Liang Xiang Franco Nori |
| author_sort | Bo Wang |
| collection | DOAJ |
| description | We show that an atom can be coupled to a mechanical oscillator via quantum vacuum fluctuations of a cavity field enabling energy transfer processes between them. In a hybrid quantum system consisting of a cavity resonator with a movable mirror and an atom, these processes are dominated by two pair-creation mechanisms: the counterrotating (atom-cavity system) and dynamical Casimir interaction terms (optomechanical system). Because of these two pair-creation mechanisms, the resonant atom-mirror coupling is the result of high-order virtual processes with different transition paths well described in our theoretical framework. We perform a unitary transformation to the atom-mirror system Hamiltonian, exhibiting two kinds of multiple-order transitions of the pair creation. By tuning the frequency of the atom, we show that photon frequency conversion can be realized within a cavity of multiple modes. Furthermore, when involving two atoms coupled to the same mechanical mode, a single vibrating excitation of the mechanical oscillator can be simultaneously absorbed by the two atoms. Considering recent advances in strong and ultrastrong coupling for cavity optomechanics and other systems, we believe our proposals can be implemented using available technology. |
| first_indexed | 2024-04-24T10:13:22Z |
| format | Article |
| id | doaj.art-dd45ea17ce3c479782bc2200c470678f |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:13:22Z |
| publishDate | 2023-02-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-dd45ea17ce3c479782bc2200c470678f2024-04-12T17:28:09ZengAmerican Physical SocietyPhysical Review Research2643-15642023-02-015101307510.1103/PhysRevResearch.5.013075Coherent resonant coupling between atoms and a mechanical oscillator mediated by cavity-vacuum fluctuationsBo WangJia-Ming HuVincenzo MacrìZe-Liang XiangFranco NoriWe show that an atom can be coupled to a mechanical oscillator via quantum vacuum fluctuations of a cavity field enabling energy transfer processes between them. In a hybrid quantum system consisting of a cavity resonator with a movable mirror and an atom, these processes are dominated by two pair-creation mechanisms: the counterrotating (atom-cavity system) and dynamical Casimir interaction terms (optomechanical system). Because of these two pair-creation mechanisms, the resonant atom-mirror coupling is the result of high-order virtual processes with different transition paths well described in our theoretical framework. We perform a unitary transformation to the atom-mirror system Hamiltonian, exhibiting two kinds of multiple-order transitions of the pair creation. By tuning the frequency of the atom, we show that photon frequency conversion can be realized within a cavity of multiple modes. Furthermore, when involving two atoms coupled to the same mechanical mode, a single vibrating excitation of the mechanical oscillator can be simultaneously absorbed by the two atoms. Considering recent advances in strong and ultrastrong coupling for cavity optomechanics and other systems, we believe our proposals can be implemented using available technology.http://doi.org/10.1103/PhysRevResearch.5.013075 |
| spellingShingle | Bo Wang Jia-Ming Hu Vincenzo Macrì Ze-Liang Xiang Franco Nori Coherent resonant coupling between atoms and a mechanical oscillator mediated by cavity-vacuum fluctuations Physical Review Research |
| title | Coherent resonant coupling between atoms and a mechanical oscillator mediated by cavity-vacuum fluctuations |
| title_full | Coherent resonant coupling between atoms and a mechanical oscillator mediated by cavity-vacuum fluctuations |
| title_fullStr | Coherent resonant coupling between atoms and a mechanical oscillator mediated by cavity-vacuum fluctuations |
| title_full_unstemmed | Coherent resonant coupling between atoms and a mechanical oscillator mediated by cavity-vacuum fluctuations |
| title_short | Coherent resonant coupling between atoms and a mechanical oscillator mediated by cavity-vacuum fluctuations |
| title_sort | coherent resonant coupling between atoms and a mechanical oscillator mediated by cavity vacuum fluctuations |
| url | http://doi.org/10.1103/PhysRevResearch.5.013075 |
| work_keys_str_mv | AT bowang coherentresonantcouplingbetweenatomsandamechanicaloscillatormediatedbycavityvacuumfluctuations AT jiaminghu coherentresonantcouplingbetweenatomsandamechanicaloscillatormediatedbycavityvacuumfluctuations AT vincenzomacri coherentresonantcouplingbetweenatomsandamechanicaloscillatormediatedbycavityvacuumfluctuations AT zeliangxiang coherentresonantcouplingbetweenatomsandamechanicaloscillatormediatedbycavityvacuumfluctuations AT franconori coherentresonantcouplingbetweenatomsandamechanicaloscillatormediatedbycavityvacuumfluctuations |