Robust generation of $N$-partite $N$-level singlet states by identical particle interferometry

Autor:	Piccolini, Matteo, Karczewski, Marcin, Winter, Andreas, Franco, Rosario Lo
Rok vydání:	2023
Předmět:	Quantum Physics
Druh dokumentu:	Working Paper
Popis:	We propose an interferometric scheme for generating the totally antisymmetric state of $N$ identical bosons with $N$ internal levels (generalized singlet). This state is a resource for various problems with dramatic quantum advantage. The procedure uses a sequence of Fourier multi-ports, combined with coincidence measurements filtering the results. Successful preparation of the generalized singlet is confirmed when the $N$ particles of the input state stay separate (anti-bunch) on each multiport. The scheme is robust to local lossless noise and works even with a totally mixed input state. Comment: 5+2 pages, 1 figure
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2312.17184 Zobrazit plný text záznamu View this record from Arxiv