Experimental demonstration of complementarity relations between quantum
steering criteria
- URL: http://arxiv.org/abs/2007.11320v1
- Date: Wed, 22 Jul 2020 10:17:02 GMT
- Title: Experimental demonstration of complementarity relations between quantum
steering criteria
- Authors: Huan Yang, Zhi-Yong Ding, Xue-Ke Song, Hao Yuan, Dong Wang, Jie Yang,
Chang-Jin Zhang, and Liu Ye
- Abstract summary: We experimentally verify the complementarity relations between quantum steering criteria by employing two-photon Bell-like states and three Pauli operators.
Our results show that the steering criterion based on skew information of coherence is more stronger in detecting the steerability of quantum states.
- Score: 17.30189229503516
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The ability that one system immediately affects another one by using local
measurements is regarded as quantum steering, which can be detected by various
steering criteria. Recently, Mondal et al. [Phys. Rev. A 98, 052330 (2018)]
derived the complementarity relations of coherence steering criteria, and
revealed that the quantum steering of system can be observed through the
average coherence of subsystem. Here, we experimentally verify the
complementarity relations between quantum steering criteria by employing
two-photon Bell-like states and three Pauli operators. The results demonstrate
that if prepared quantum states can violate two setting coherence steering
criteria and turn out to be steerable states, then it cannot violate the
complementary settings criteria. Three measurement settings inequality, which
establish a complementarity relation between these two coherence steering
criteria, always holds in experiment. Besides, we experimentally certify that
the strengths of coherence steering criteria dependent on the choice of
coherence measure. In comparison with two setting coherence steering criteria
based on l1 norm of coherence and relative entropy of coherence, our
experimental results show that the steering criterion based on skew information
of coherence is more stronger in detecting the steerability of quantum states.
Thus, our experimental demonstrations can deepen the understanding of the
relation between the quantum steering and quantum coherence.
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