Accelerating Dissipative State Preparation with Adaptive Open Quantum Dynamics
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arXiv
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866915141847613440 |
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| author | Pocklington, Andrew Clerk, Aashish A. |
| author_facet | Pocklington, Andrew Clerk, Aashish A. |
| contents | A wide variety of dissipative state preparation schemes suffer from a basic time-entanglement tradeoff: the more entangled the steady state, the slower the relaxation to the steady state. Here, we show how a minimal kind of adaptive dynamics can be used to completely circumvent this tradeoff, and allow the dissipative stabilization of maximally entangled states with a finite time-scale. Our approach takes inspiration from simple fermionic stabilization schemes, which surprisingly are immune to entanglement-induced slowdown. We describe schemes for accelerated stabilization of many-body entangled qubit states (including spin squeezed states), both in the form of discretized Floquet circuits, as well as continuous time dissipative dynamics. Our ideas are compatible with a number of experimental platforms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_06012 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Accelerating Dissipative State Preparation with Adaptive Open Quantum Dynamics Pocklington, Andrew Clerk, Aashish A. Quantum Physics A wide variety of dissipative state preparation schemes suffer from a basic time-entanglement tradeoff: the more entangled the steady state, the slower the relaxation to the steady state. Here, we show how a minimal kind of adaptive dynamics can be used to completely circumvent this tradeoff, and allow the dissipative stabilization of maximally entangled states with a finite time-scale. Our approach takes inspiration from simple fermionic stabilization schemes, which surprisingly are immune to entanglement-induced slowdown. We describe schemes for accelerated stabilization of many-body entangled qubit states (including spin squeezed states), both in the form of discretized Floquet circuits, as well as continuous time dissipative dynamics. Our ideas are compatible with a number of experimental platforms. |
| title | Accelerating Dissipative State Preparation with Adaptive Open Quantum Dynamics |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2409.06012 |