Experimental classical entanglement in a 16 acoustic qubit-analogue

被引:14
作者
Hasan, M. Arif [1 ]
Runge, Keith [2 ]
Deymier, Pierre A. [2 ]
机构
[1] Wayne State Univ, Dept Mech Engn, Detroit, MI 48202 USA
[2] Univ Arizona, Dept Mat Sci & Engn, Tucson, AZ 85721 USA
基金
美国国家科学基金会;
关键词
SCHRODINGER CAT STATES; GENERATION;
D O I
10.1038/s41598-021-03789-5
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The possibility of achieving and controlling scalable classically entangled, i.e., inseparable, multipartite states, would fundamentally challenge the advantages of quantum systems in harnessing the power of complexity in information science. Here, we investigate experimentally the extent of classical entanglement in a 16 acoustic qubit-analogue platform. The acoustic qubit-analogue, a.k.a., logical phi-bit, results from the spectral partitioning of the nonlinear acoustic field of externally driven coupled waveguides. Each logical phi-bit is a two-level subsystem characterized by two independently measurable phases. The phi-bits are co-located within the same physical space enabling distance independent interactions. We chose a vector state representation of the 16-phi-bit system which lies in a 2(16)-dimensional Hilbert space. The calculation of the entropy of entanglement demonstrates the possibility of achieving inseparability of the vector state and of navigating the corresponding Hilbert space. This work suggests a new direction in harnessing the complexity of classical inseparability in information science.
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页数:11
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