Suppressing photon detection errors in nondeterministic state preparation
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2024
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866917718026878976 |
|---|---|
| author | Czabán, Csaba Kolarovszki, Zoltán Karácsony, Márton Zimborás, Zoltán |
| author_facet | Czabán, Csaba Kolarovszki, Zoltán Karácsony, Márton Zimborás, Zoltán |
| contents | Photonic quantum computing has recently emerged as a promising candidate for fault-tolerant quantum computing by photonic qubits. These protocols make use of nondeterministic gates, enabling universal quantum computation. However, the suggested solutions heavily use particle number resolving detectors (PNRDs), which are experimentally hard to realize and are usually biased in practice. We investigate the possibility of suppressing such errors caused by such photodetector imperfections by adjusting the optimal beamsplitter and phaseshifter angles in the interferometer corresponding to nondeterministic gates. Moreover, we devise an optimization method for determining the adjusted angles, which may achieve higher output state fidelities while controlling the success probabilities of the nondeterministic gates. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_07579 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Suppressing photon detection errors in nondeterministic state preparation Czabán, Csaba Kolarovszki, Zoltán Karácsony, Márton Zimborás, Zoltán Quantum Physics Photonic quantum computing has recently emerged as a promising candidate for fault-tolerant quantum computing by photonic qubits. These protocols make use of nondeterministic gates, enabling universal quantum computation. However, the suggested solutions heavily use particle number resolving detectors (PNRDs), which are experimentally hard to realize and are usually biased in practice. We investigate the possibility of suppressing such errors caused by such photodetector imperfections by adjusting the optimal beamsplitter and phaseshifter angles in the interferometer corresponding to nondeterministic gates. Moreover, we devise an optimization method for determining the adjusted angles, which may achieve higher output state fidelities while controlling the success probabilities of the nondeterministic gates. |
| title | Suppressing photon detection errors in nondeterministic state preparation |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2407.07579 |