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Quantum phase estimation using path-symmetric entangled states

We study the sensitivity of phase estimation using a generic class of path-symmetric entangled states |φ〉|0〉 + |0〉|φ〉, where an arbitrary state |φ〉 occupies one of two modes in quantum superposition. With this generalization, we identify the fundamental limit of phase estimation under energy constra...

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Detalles Bibliográficos
Autores principales: Lee, Su-Yong, Lee, Chang-Woo, Lee, Jaehak, Nha, Hyunchul
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4995609/
https://www.ncbi.nlm.nih.gov/pubmed/27457267
http://dx.doi.org/10.1038/srep30306