Experimental construction of a symmetric three-qubit entangled state and
its utility in testing the violation of a Bell inequality on an NMR quantum
simulator
- URL: http://arxiv.org/abs/2206.12870v1
- Date: Sun, 26 Jun 2022 12:56:47 GMT
- Title: Experimental construction of a symmetric three-qubit entangled state and
its utility in testing the violation of a Bell inequality on an NMR quantum
simulator
- Authors: Dileep Singh and Vaishali Gulati and Arvind and Kavita Dorai
- Abstract summary: We experimentally created a maximally entangled three-qubit state called the $vert rm S rangle$ state on an NMR quantum processor.
The presence of entanglement in the state was certified by computing two different entanglement measures, namely negativity and concurrence.
- Score: 3.818504253546488
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We designed a quantum circuit to prepare a permutation-symmetric maximally
entangled three-qubit state called the $\vert {\rm S} \rangle$ state and
experimentally created it on an NMR quantum processor. The presence of
entanglement in the state was certified by computing two different entanglement
measures, namely negativity and concurrence. We used the $\vert {\rm S}
\rangle$ state in conjunction with a set of maximally incompatible local
measurements, to demonstrate the maximal violation of inequality number $26$ in
Sliwa's classification scheme, which is a tight Bell inequality for the (3,2,2)
scenario i.e. the three party, two measurement settings and two measurement
outcomes scenario.
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