Trotterless Simulation of Open Quantum Systems for NISQ Quantum Devices
Fuente:
arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866909344591773696 |
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| author | Burdine, Colin Blair, Enrique P. |
| author_facet | Burdine, Colin Blair, Enrique P. |
| contents | The simulation of quantum systems is one of the flagship applications of near-term NISQ (noisy intermediate-scale quantum) computing devices. Efficiently simulating the rich, non-unitary dynamics of open quantum systems remains challenging on NISQ hardware. Current simulation methods for open quantum systems employ time-stepped Trotter product formulas ("Trotterization") which can scale poorly with respect to the simulation time and system dimension. Here, we propose a new simulation method based on the derivation of a Kraus operator series representation of the system. We identify a class of open quantum systems for which this method produces circuits of time-independent depth, which may serve as a desirable alternative to Trotterization, especially on NISQ devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_03854 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Trotterless Simulation of Open Quantum Systems for NISQ Quantum Devices Burdine, Colin Blair, Enrique P. Quantum Physics The simulation of quantum systems is one of the flagship applications of near-term NISQ (noisy intermediate-scale quantum) computing devices. Efficiently simulating the rich, non-unitary dynamics of open quantum systems remains challenging on NISQ hardware. Current simulation methods for open quantum systems employ time-stepped Trotter product formulas ("Trotterization") which can scale poorly with respect to the simulation time and system dimension. Here, we propose a new simulation method based on the derivation of a Kraus operator series representation of the system. We identify a class of open quantum systems for which this method produces circuits of time-independent depth, which may serve as a desirable alternative to Trotterization, especially on NISQ devices. |
| title | Trotterless Simulation of Open Quantum Systems for NISQ Quantum Devices |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2410.03854 |