Deterministic Multi-User Identification over Bosonic Channels
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arXiv
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| Hauptverfasser: | , |
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| Format: | Preprint |
| Veröffentlicht: |
2026
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| _version_ | 1866908991378948096 |
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| author | Elmas, Gökhan Nötzel, Janis |
| author_facet | Elmas, Gökhan Nötzel, Janis |
| contents | We study deterministic multi-user identification over bosonic channels using coherent-state signatures. Each user is assigned a coherent product state under an average energy constraint, and identification is performed by a user-specific binary quantum test. In contrast to classical multi-user identification models based on shared codebooks, this formulation associates each receiver with a geometric signature in high-dimensional phase space. Using metric entropy bounds, we show that the identification capacity exhibits a near-k log k scaling behavior. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_22804 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Deterministic Multi-User Identification over Bosonic Channels Elmas, Gökhan Nötzel, Janis Quantum Physics Information Theory We study deterministic multi-user identification over bosonic channels using coherent-state signatures. Each user is assigned a coherent product state under an average energy constraint, and identification is performed by a user-specific binary quantum test. In contrast to classical multi-user identification models based on shared codebooks, this formulation associates each receiver with a geometric signature in high-dimensional phase space. Using metric entropy bounds, we show that the identification capacity exhibits a near-k log k scaling behavior. |
| title | Deterministic Multi-User Identification over Bosonic Channels |
| topic | Quantum Physics Information Theory |
| url | https://arxiv.org/abs/2604.22804 |