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https://doi.org/10.1103/PhysRevA.83.020101
Title: | Detecting multipartite classical states and their resemblances | Authors: | Chen, L. Chitambar, E. Modi, K. Vacanti, G. |
Issue Date: | 15-Feb-2011 | Citation: | Chen, L., Chitambar, E., Modi, K., Vacanti, G. (2011-02-15). Detecting multipartite classical states and their resemblances. Physical Review A - Atomic, Molecular, and Optical Physics 83 (2) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.83.020101 | Abstract: | We study various types of multipartite states lying near the quantum-classical boundary. The so-called classical states are precisely those in which each party can perfectly identify a locally held state without disturbing the global state, a task known as nondisruptive local state identification (NDLID). We show NDLID to be closely related local broadcasting, and we introduce a class of states called generalized classical states which allow for both NDLID and multipartite broadcasting when the most general quantum measurements are permitted. Simple analytical methods and a physical criterion are given for detecting whether a multipartite state is classical or generalized classical. For deciding the latter, a semidefinite programming algorithm is presented which may find use in other fields such as signal processing. © 2011 American Physical Society. | Source Title: | Physical Review A - Atomic, Molecular, and Optical Physics | URI: | http://scholarbank.nus.edu.sg/handle/10635/112414 | ISSN: | 10502947 | DOI: | 10.1103/PhysRevA.83.020101 |
Appears in Collections: | Staff Publications |
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