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| Format: | Preprint |
| Veröffentlicht: |
2024
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| Online-Zugang: | https://arxiv.org/abs/2410.04919 |
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| _version_ | 1866913535529844736 |
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| author | Xun, Zhirong Ren, Changliang |
| author_facet | Xun, Zhirong Ren, Changliang |
| contents | This study investigates quantum energy teleportation (QET) using stochastic bi-partitioning in an $N-$body Hamiltonian system. In this protocol, project measurements are performed on $(N - m)$ qubits to capture quantum fluctuation information of the $N-$qubit ground state during external energy injection. Significantly, the information reaches the sites of the remaining $m$ qubits faster than the energy diffuses, allowing for extracting the ground state energy through local operations. Our results show that increasing the number of qubits $N$ enhances the available energy for QET, with efficiency peaking when $(N - 1)$ qubits are inputs and one is an output. We also find a strong correlation between energy transfer efficiency and ground-state entanglement. Increasing the parameter $\frac{k}{h}$ improves both efficiency and entanglement until reaching a plateau. Overall, more qubits lead to higher energy transfer efficiency and entanglement, highlighting their critical roles in QET performance. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_04919 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Quantum energy teleportation via random bi-partitioning in N-qubit systems Xun, Zhirong Ren, Changliang Quantum Physics This study investigates quantum energy teleportation (QET) using stochastic bi-partitioning in an $N-$body Hamiltonian system. In this protocol, project measurements are performed on $(N - m)$ qubits to capture quantum fluctuation information of the $N-$qubit ground state during external energy injection. Significantly, the information reaches the sites of the remaining $m$ qubits faster than the energy diffuses, allowing for extracting the ground state energy through local operations. Our results show that increasing the number of qubits $N$ enhances the available energy for QET, with efficiency peaking when $(N - 1)$ qubits are inputs and one is an output. We also find a strong correlation between energy transfer efficiency and ground-state entanglement. Increasing the parameter $\frac{k}{h}$ improves both efficiency and entanglement until reaching a plateau. Overall, more qubits lead to higher energy transfer efficiency and entanglement, highlighting their critical roles in QET performance. |
| title | Quantum energy teleportation via random bi-partitioning in N-qubit systems |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2410.04919 |