Enhanced quantum state swapping via environmental memory
Environmental noise is a prevalent issue that hinders the widespread adoption of quantum technologies. Standard practice to mitigate noise involves minimizing the coupling between a quantum system and its environment, which is usually modeled in the Markovian regime. By moving slightly beyond this r...
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2025-03-01
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| Series: | APL Quantum |
| Online Access: | http://dx.doi.org/10.1063/5.0253875 |
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| author | K. Mui A. Couvertier T. Yu |
| author_facet | K. Mui A. Couvertier T. Yu |
| author_sort | K. Mui |
| collection | DOAJ |
| description | Environmental noise is a prevalent issue that hinders the widespread adoption of quantum technologies. Standard practice to mitigate noise involves minimizing the coupling between a quantum system and its environment, which is usually modeled in the Markovian regime. By moving slightly beyond this regime into the weak non-Markovian regime, we can achieve an effective coupling that is multiple orders of magnitude smaller by exploiting the environmental memory effect. To demonstrate this effect, we simulate state swapping in a Markovian and non-Markovian environment between two modes: a cavity mode initialized as a vacuum state and an atomic motional mode initialized as a displaced squeezed coherent state. To measure the quality of state swapping between environments, we calculate and compare their corresponding multi-mode fidelity for Gaussian states. We find that a non-Markovian environment has superior state swapping fidelity across the following parameters: mean phonon number, cavity decay rate, and vibrational frequency of the atomic motional mode. The fidelity is near-unit for a non-Markovian environment within the parameter ranges mentioned in the results. These results could enable enhanced quantum information exchange between a network and chain of cavity-atom nodes and contribute toward a more prevalent adoption of quantum technologies. |
| format | Article |
| id | doaj-art-9f64e0d0fdc14de9ba8a742500f927dd |
| institution | DOAJ |
| issn | 2835-0103 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Quantum |
| spelling | doaj-art-9f64e0d0fdc14de9ba8a742500f927dd2025-08-20T03:06:19ZengAIP Publishing LLCAPL Quantum2835-01032025-03-0121016126016126-910.1063/5.0253875Enhanced quantum state swapping via environmental memoryK. Mui0A. Couvertier1T. Yu2Department of Physics, Stevens Institute of Technology, Center for Quantum Science and Engineering, Castle Point on the Hudson, Hoboken, New Jersey 07030, USADepartment of Physics, Stevens Institute of Technology, Center for Quantum Science and Engineering, Castle Point on the Hudson, Hoboken, New Jersey 07030, USADepartment of Physics, Stevens Institute of Technology, Center for Quantum Science and Engineering, Castle Point on the Hudson, Hoboken, New Jersey 07030, USAEnvironmental noise is a prevalent issue that hinders the widespread adoption of quantum technologies. Standard practice to mitigate noise involves minimizing the coupling between a quantum system and its environment, which is usually modeled in the Markovian regime. By moving slightly beyond this regime into the weak non-Markovian regime, we can achieve an effective coupling that is multiple orders of magnitude smaller by exploiting the environmental memory effect. To demonstrate this effect, we simulate state swapping in a Markovian and non-Markovian environment between two modes: a cavity mode initialized as a vacuum state and an atomic motional mode initialized as a displaced squeezed coherent state. To measure the quality of state swapping between environments, we calculate and compare their corresponding multi-mode fidelity for Gaussian states. We find that a non-Markovian environment has superior state swapping fidelity across the following parameters: mean phonon number, cavity decay rate, and vibrational frequency of the atomic motional mode. The fidelity is near-unit for a non-Markovian environment within the parameter ranges mentioned in the results. These results could enable enhanced quantum information exchange between a network and chain of cavity-atom nodes and contribute toward a more prevalent adoption of quantum technologies.http://dx.doi.org/10.1063/5.0253875 |
| spellingShingle | K. Mui A. Couvertier T. Yu Enhanced quantum state swapping via environmental memory APL Quantum |
| title | Enhanced quantum state swapping via environmental memory |
| title_full | Enhanced quantum state swapping via environmental memory |
| title_fullStr | Enhanced quantum state swapping via environmental memory |
| title_full_unstemmed | Enhanced quantum state swapping via environmental memory |
| title_short | Enhanced quantum state swapping via environmental memory |
| title_sort | enhanced quantum state swapping via environmental memory |
| url | http://dx.doi.org/10.1063/5.0253875 |
| work_keys_str_mv | AT kmui enhancedquantumstateswappingviaenvironmentalmemory AT acouvertier enhancedquantumstateswappingviaenvironmentalmemory AT tyu enhancedquantumstateswappingviaenvironmentalmemory |