Entanglement generation and stabilization by coherent collisions
Collision is a useful tool for revealing quantum effects and realizing quantum informational tasks. We demonstrate that repeated collisions by itinerant electrons can dissipatively drive two remote spin qubits into an entangled state in a generic collisional framework. A coherent spin exchange with...
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| Format: | Article |
| Language: | English |
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American Physical Society
2025-02-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.7.013145 |
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| _version_ | 1823860323603447808 |
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| author | A. Mert Bozkurt Rosa López Sungguen Ryu |
| author_facet | A. Mert Bozkurt Rosa López Sungguen Ryu |
| author_sort | A. Mert Bozkurt |
| collection | DOAJ |
| description | Collision is a useful tool for revealing quantum effects and realizing quantum informational tasks. We demonstrate that repeated collisions by itinerant electrons can dissipatively drive two remote spin qubits into an entangled state in a generic collisional framework. A coherent spin exchange with either qubit facilitates entanglement generation. When combined with proper local driving, these collisions induce an entangled steady state in most collision configurations. Particularly, the collision which is symmetric for the two qubits results in a unique steady state close to a maximally entangled state. Due to the dissipative nature of the process, the entanglement persists in the presence of decoherence, provided the collision frequency exceeds the decoherence rate. Our model can be experimentally implemented using single-electron sources. |
| format | Article |
| id | doaj-art-05a16bb710c84a608209c7fc11536c85 |
| institution | Kabale University |
| issn | 2643-1564 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-05a16bb710c84a608209c7fc11536c852025-02-10T15:05:16ZengAmerican Physical SocietyPhysical Review Research2643-15642025-02-017101314510.1103/PhysRevResearch.7.013145Entanglement generation and stabilization by coherent collisionsA. Mert BozkurtRosa LópezSungguen RyuCollision is a useful tool for revealing quantum effects and realizing quantum informational tasks. We demonstrate that repeated collisions by itinerant electrons can dissipatively drive two remote spin qubits into an entangled state in a generic collisional framework. A coherent spin exchange with either qubit facilitates entanglement generation. When combined with proper local driving, these collisions induce an entangled steady state in most collision configurations. Particularly, the collision which is symmetric for the two qubits results in a unique steady state close to a maximally entangled state. Due to the dissipative nature of the process, the entanglement persists in the presence of decoherence, provided the collision frequency exceeds the decoherence rate. Our model can be experimentally implemented using single-electron sources.http://doi.org/10.1103/PhysRevResearch.7.013145 |
| spellingShingle | A. Mert Bozkurt Rosa López Sungguen Ryu Entanglement generation and stabilization by coherent collisions Physical Review Research |
| title | Entanglement generation and stabilization by coherent collisions |
| title_full | Entanglement generation and stabilization by coherent collisions |
| title_fullStr | Entanglement generation and stabilization by coherent collisions |
| title_full_unstemmed | Entanglement generation and stabilization by coherent collisions |
| title_short | Entanglement generation and stabilization by coherent collisions |
| title_sort | entanglement generation and stabilization by coherent collisions |
| url | http://doi.org/10.1103/PhysRevResearch.7.013145 |
| work_keys_str_mv | AT amertbozkurt entanglementgenerationandstabilizationbycoherentcollisions AT rosalopez entanglementgenerationandstabilizationbycoherentcollisions AT sungguenryu entanglementgenerationandstabilizationbycoherentcollisions |