Bell violation for unknown continuous-variable states
X.-F. Qian, C.J. Broadbent, and J.H. Eberly
TL;DR
This paper introduces a novel Bell test for two-particle entangled systems involving unbounded continuous variables, allowing for indirect measurements of arbitrary states to explore nonlocality and local realism.
Contribution
It presents a systematic method for indirect measurement of continuous-variable states in Bell tests, expanding the tools for studying quantum nonlocality in complex systems.
Findings
Demonstrates Bell violation for unknown continuous-variable states
Provides a new framework for nonlocal control in quantum information
Enhances understanding of local realism in continuous-variable systems
Abstract
We describe a new Bell test for two-particle entangled systems that engages an unbounded continuous variable. The continuous variable state is allowed to be arbitrary and inaccessible to direct measurements. A systematic method is introduced to perform the required measurements indirectly. Our results provide new perspectives on both the study of local realistic theory for continuous-variable systems and on the nonlocal control theory of quantum information.
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