Generation and optimization of entanglement between atoms chirally coupled to spin cavities
We explore the generation and optimization of entanglement between atoms chirally coupled to finite one-dimensional spin chains, functioning as spin cavities. By diagonalizing the spin cavity Hamiltonian, we identify a parity effect that influences entanglement, with small even-sized cavities chiral...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2025-03-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.7.L012058 |
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| author | Jia-Bin You Jian Feng Kong Davit Aghamalyan Wai-Keong Mok Kian Hwee Lim Jun Ye Ching Eng Png Francisco J. García-Vidal |
| author_facet | Jia-Bin You Jian Feng Kong Davit Aghamalyan Wai-Keong Mok Kian Hwee Lim Jun Ye Ching Eng Png Francisco J. García-Vidal |
| author_sort | Jia-Bin You |
| collection | DOAJ |
| description | We explore the generation and optimization of entanglement between atoms chirally coupled to finite one-dimensional spin chains, functioning as spin cavities. By diagonalizing the spin cavity Hamiltonian, we identify a parity effect that influences entanglement, with small even-sized cavities chirally coupled to atoms expediting entanglement generation by approximately 50% faster than nonchiral coupling. Applying a classical driving field to the atoms reveals oscillations in concurrence, with resonant dips at specific driving strengths due to the resonances between the driven atom and the spin cavity. Extending our study to systems with energetic disorder, we find that high concurrence can be achieved regardless of disorder strength when the inverse participation ratio of the resulting eigenstates is favorable. Finally, we demonstrate that controlled disorder within the cavity significantly enhances and expedites entanglement generation, achieving higher concurrences up to four times faster than those attained in ordered systems. |
| format | Article |
| id | doaj-art-3a61e4046b2144c59d170fb734ffcf0f |
| institution | DOAJ |
| issn | 2643-1564 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-3a61e4046b2144c59d170fb734ffcf0f2025-08-20T02:58:34ZengAmerican Physical SocietyPhysical Review Research2643-15642025-03-0171L01205810.1103/PhysRevResearch.7.L012058Generation and optimization of entanglement between atoms chirally coupled to spin cavitiesJia-Bin YouJian Feng KongDavit AghamalyanWai-Keong MokKian Hwee LimJun YeChing Eng PngFrancisco J. García-VidalWe explore the generation and optimization of entanglement between atoms chirally coupled to finite one-dimensional spin chains, functioning as spin cavities. By diagonalizing the spin cavity Hamiltonian, we identify a parity effect that influences entanglement, with small even-sized cavities chirally coupled to atoms expediting entanglement generation by approximately 50% faster than nonchiral coupling. Applying a classical driving field to the atoms reveals oscillations in concurrence, with resonant dips at specific driving strengths due to the resonances between the driven atom and the spin cavity. Extending our study to systems with energetic disorder, we find that high concurrence can be achieved regardless of disorder strength when the inverse participation ratio of the resulting eigenstates is favorable. Finally, we demonstrate that controlled disorder within the cavity significantly enhances and expedites entanglement generation, achieving higher concurrences up to four times faster than those attained in ordered systems.http://doi.org/10.1103/PhysRevResearch.7.L012058 |
| spellingShingle | Jia-Bin You Jian Feng Kong Davit Aghamalyan Wai-Keong Mok Kian Hwee Lim Jun Ye Ching Eng Png Francisco J. García-Vidal Generation and optimization of entanglement between atoms chirally coupled to spin cavities Physical Review Research |
| title | Generation and optimization of entanglement between atoms chirally coupled to spin cavities |
| title_full | Generation and optimization of entanglement between atoms chirally coupled to spin cavities |
| title_fullStr | Generation and optimization of entanglement between atoms chirally coupled to spin cavities |
| title_full_unstemmed | Generation and optimization of entanglement between atoms chirally coupled to spin cavities |
| title_short | Generation and optimization of entanglement between atoms chirally coupled to spin cavities |
| title_sort | generation and optimization of entanglement between atoms chirally coupled to spin cavities |
| url | http://doi.org/10.1103/PhysRevResearch.7.L012058 |
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