Robust generation of $N$-partite $N$-level singlet states by identical particle interferometry
Autor: | Piccolini, Matteo, Karczewski, Marcin, Winter, Andreas, Franco, Rosario Lo |
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Rok vydání: | 2023 |
Předmět: | |
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 |
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