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https://scholarbank.nus.edu.sg/handle/10635/155370
Title: | No nonlocal advantage of quantum coherence beyond quantum instrumentality | Authors: | MONDAL, DEBASIS SINGH, JASKARAN KASZLIKOWSKI, DAGOMIR |
Keywords: | quant-ph quant-ph |
Issue Date: | 21-Jan-2019 | Citation: | MONDAL, DEBASIS, SINGH, JASKARAN, KASZLIKOWSKI, DAGOMIR (2019-01-21). No nonlocal advantage of quantum coherence beyond quantum instrumentality. ScholarBank@NUS Repository. | Abstract: | Recently, it has been shown that quantum steerability is stronger than the bound set by the instrumental causal network and quantum instrumentality cannot simulate EPR-nonlocal correlations. In this work, we show that although quantum steering may be stronger than what is allowed by the instrumental causal network, the non-local advantage of quantum local coherence (NAQC) can only be achieved under ordered causal network but not under one-sided quantum instrumentality (1SQI) and outcome communications. As a consequence of our work, it is observed that there is a qualitative difference between the idea of NAQC and EPR non-locality. Furthermore, the principle of no NAQC beyond quantum instrumentality can also be used to single out EPR-nonlocality. | URI: | https://scholarbank.nus.edu.sg/handle/10635/155370 |
Appears in Collections: | Staff Publications Elements |
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