Unification of nonclassicality measures in interferometry
From an operational perspective, nonclassicality characterizes the exotic behavior in a physical process which cannot be explained with Newtonian physics. There are several widely used measures of nonclassicality, including coherence, discord, and entanglement, each proven to be essential resources...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | English |
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2018
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| Online Access: | https://hdl.handle.net/10356/85241 http://hdl.handle.net/10220/45159 |
| _version_ | 1826117623394336768 |
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| author | Yuan, Xiao Zhou, Hongyi Gu, Mile Ma, Xiongfeng |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Yuan, Xiao Zhou, Hongyi Gu, Mile Ma, Xiongfeng |
| author_sort | Yuan, Xiao |
| collection | NTU |
| description | From an operational perspective, nonclassicality characterizes the exotic behavior in a physical process which cannot be explained with Newtonian physics. There are several widely used measures of nonclassicality, including coherence, discord, and entanglement, each proven to be essential resources in particular situations. There exists evidence of fundamental connections among the three measures. However, the sources of nonclassicality are still regarded differently and such connections are yet to be elucidated. Here, we introduce a general framework of defining a unified nonclassicality with an operational motivation founded on the capability of interferometry. Nonclassicality appears differently as coherence, discord, and entanglement in different scenarios with local measurement, weak basis-independent measurement, and strong basis-independent measurement, respectively. Our results elaborate how these three measures are related and how they can be transformed from each other. Experimental schemes are proposed to test the results. |
| first_indexed | 2024-10-01T04:30:39Z |
| format | Journal Article |
| id | ntu-10356/85241 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:30:39Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/852412023-02-28T19:32:02Z Unification of nonclassicality measures in interferometry Yuan, Xiao Zhou, Hongyi Gu, Mile Ma, Xiongfeng School of Physical and Mathematical Sciences Complexity Institute Nonclassicality Interferometry From an operational perspective, nonclassicality characterizes the exotic behavior in a physical process which cannot be explained with Newtonian physics. There are several widely used measures of nonclassicality, including coherence, discord, and entanglement, each proven to be essential resources in particular situations. There exists evidence of fundamental connections among the three measures. However, the sources of nonclassicality are still regarded differently and such connections are yet to be elucidated. Here, we introduce a general framework of defining a unified nonclassicality with an operational motivation founded on the capability of interferometry. Nonclassicality appears differently as coherence, discord, and entanglement in different scenarios with local measurement, weak basis-independent measurement, and strong basis-independent measurement, respectively. Our results elaborate how these three measures are related and how they can be transformed from each other. Experimental schemes are proposed to test the results. NRF (Natl Research Foundation, S’pore) Published version 2018-07-20T04:46:04Z 2019-12-06T16:00:15Z 2018-07-20T04:46:04Z 2019-12-06T16:00:15Z 2018 Journal Article Yuan, X., Zhou, H., Gu, M., & Ma, X. (2018). Unification of nonclassicality measures in interferometry. Physical Review A, 97(1), 012331-. 2469-9926 https://hdl.handle.net/10356/85241 http://hdl.handle.net/10220/45159 10.1103/PhysRevA.97.012331 en Physical Review A © 2018 American Physical Society. This paper was published in Physical Review A and is made available as an electronic reprint (preprint) with permission of American Physical Society. The published version is available at: [http://dx.doi.org/10.1103/PhysRevA.97.012331]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. 9 p. application/pdf |
| spellingShingle | Nonclassicality Interferometry Yuan, Xiao Zhou, Hongyi Gu, Mile Ma, Xiongfeng Unification of nonclassicality measures in interferometry |
| title | Unification of nonclassicality measures in interferometry |
| title_full | Unification of nonclassicality measures in interferometry |
| title_fullStr | Unification of nonclassicality measures in interferometry |
| title_full_unstemmed | Unification of nonclassicality measures in interferometry |
| title_short | Unification of nonclassicality measures in interferometry |
| title_sort | unification of nonclassicality measures in interferometry |
| topic | Nonclassicality Interferometry |
| url | https://hdl.handle.net/10356/85241 http://hdl.handle.net/10220/45159 |
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