Linear Optical Schemes to Postselect High-Dimensional Dicke States

Quantum Physics [Submitted on 16 Apr 2026] Linear Optical Schemes to Postselect High-Dimensional Dicke States Daniel Bhatti, William J. Munro, Seungbeom Chin Multipartite entanglement is an essential quantum resource for various distributed quantum applications. One promising method for preparing multipartite entanglement is to interfere independent photons at linear optical interference setups. While heralding the successful interference and thereby the state generation is often costly, postselecting entangled states provides an achievable alternative in this framework. We introduce a family of interference schemes for postselecting symmetric qudit Dicke states, useful resources in quantum communication and variational quantum computing. We present schemes with and without ancillary photons and show that using ancillary photons can exceed the upper bound on the success probability of schemes without ancillary photons. Our results accommodate a wide range of linear optical schemes, providing multiple viable approaches for postselecting Dicke states. Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2604.14516 [quant-ph]   (or arXiv:2604.14516v1 [quant-ph] for this version)   https://doi.org/10.48550/arXiv.2604.14516 Focus to learn more Submission history From: Daniel Bhatti [view email] [v1] Thu, 16 Apr 2026 01:13:24 UTC (368 KB) Access Paper: HTML (experimental) view license Current browse context: quant-ph < prev   |   next > new | recent | 2026-04 References & Citations INSPIRE HEP NASA ADS Google Scholar Semantic Scholar Export BibTeX Citation Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer (What is the Explorer?) Connected Papers Toggle Connected Papers (What is Connected Papers?) Litmaps Toggle Litmaps (What is Litmaps?) scite.ai Toggle scite Smart Citations (What are Smart Citations?) Code, Data, Media Demos Related Papers About arXivLabs Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)