Magnon squeezing in conical spin spirals
We investigate squeezing of magnons in a conical spin spiral configuration. We find that while the energy of magnons propagating along the k and the −k directions can be different due to the nonreciprocal dispersion, these two modes are connected by the squeezing, and hence can be described by the s...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2023-11-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.5.043124 |
| _version_ | 1797210379116347392 |
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| author | D. Wuhrer L. Rózsa U. Nowak W. Belzig |
| author_facet | D. Wuhrer L. Rózsa U. Nowak W. Belzig |
| author_sort | D. Wuhrer |
| collection | DOAJ |
| description | We investigate squeezing of magnons in a conical spin spiral configuration. We find that while the energy of magnons propagating along the k and the −k directions can be different due to the nonreciprocal dispersion, these two modes are connected by the squeezing, and hence can be described by the same squeezing parameter. The squeezing parameter diverges at the center of the Brillouin zone due to the translational Goldstone mode of the system, but the squeezing also vanishes for certain wave vectors. We discuss possible ways of detecting the squeezing. |
| first_indexed | 2024-04-24T10:09:39Z |
| format | Article |
| id | doaj.art-70824f4535e14ccb93a538b01ab0a4ef |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:09:39Z |
| publishDate | 2023-11-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-70824f4535e14ccb93a538b01ab0a4ef2024-04-12T17:35:45ZengAmerican Physical SocietyPhysical Review Research2643-15642023-11-015404312410.1103/PhysRevResearch.5.043124Magnon squeezing in conical spin spiralsD. WuhrerL. RózsaU. NowakW. BelzigWe investigate squeezing of magnons in a conical spin spiral configuration. We find that while the energy of magnons propagating along the k and the −k directions can be different due to the nonreciprocal dispersion, these two modes are connected by the squeezing, and hence can be described by the same squeezing parameter. The squeezing parameter diverges at the center of the Brillouin zone due to the translational Goldstone mode of the system, but the squeezing also vanishes for certain wave vectors. We discuss possible ways of detecting the squeezing.http://doi.org/10.1103/PhysRevResearch.5.043124 |
| spellingShingle | D. Wuhrer L. Rózsa U. Nowak W. Belzig Magnon squeezing in conical spin spirals Physical Review Research |
| title | Magnon squeezing in conical spin spirals |
| title_full | Magnon squeezing in conical spin spirals |
| title_fullStr | Magnon squeezing in conical spin spirals |
| title_full_unstemmed | Magnon squeezing in conical spin spirals |
| title_short | Magnon squeezing in conical spin spirals |
| title_sort | magnon squeezing in conical spin spirals |
| url | http://doi.org/10.1103/PhysRevResearch.5.043124 |
| work_keys_str_mv | AT dwuhrer magnonsqueezinginconicalspinspirals AT lrozsa magnonsqueezinginconicalspinspirals AT unowak magnonsqueezinginconicalspinspirals AT wbelzig magnonsqueezinginconicalspinspirals |