Coherence Distillation Unveils Einstein-Podolsky-Rosen Steering
- URL: http://arxiv.org/abs/2312.01055v2
- Date: Mon, 8 Jan 2024 08:38:09 GMT
- Title: Coherence Distillation Unveils Einstein-Podolsky-Rosen Steering
- Authors: Kuan-Yi Lee, Jhen-Dong Lin, Karel Lemr, Anton\'in \v{C}ernoch, Adam
Miranowicz, Franco Nori, Huan-Yu Ku, and Yueh-Nan Chen
- Abstract summary: We focus on quantum steering and the local distillable coherence for a steered subsystem.
We prove that the proposed steering witness can detect one-way steerable and all pure entangled states.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Quantum coherence is a fundamental property in quantum information science.
Recent developments have provided valuable insights into its distillability and
its relationship with nonlocal quantum correlations, such as quantum discord
and entanglement. In this work, we focus on quantum steering and the local
distillable coherence for a steered subsystem. We propose a steering inequality
based on collaborative coherence distillation. Notably, we prove that the
proposed steering witness can detect one-way steerable and all pure entangled
states. Through linear optical experiments, we corroborate our theoretical
efficacy in detecting pure entangled states. Furthermore, we demonstrate that
the violation of the steering inequality can be employed as a quantifier of
measurement incompatibility. Our work provides a clear quantitative and
operational connection between coherence and entanglement, two landmark
manifestations of quantum theory and both key enablers for quantum
technologies.
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