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Open Quantum Systems Decoherence
Superconducting Qubits
Leggett-Garg test of superconducting qubit addressing the clumsiness loophole
arXiv
Authors: Emilie Huffman, Ari Mizel
Year
2016
Paper ID
43488
Status
Preprint
Abstract Read
~2 min
Abstract Words
93
Citations
N/A
Abstract
The Leggett-Garg inequality holds for any macrorealistic system that is being measured noninvasively. A violation of the inequality can signal that a system does not conform to our primal intuition about the physical world. Alternatively, a violation can simply indicate that "clumsy" experimental technique led to invasive measurements. Here, we consider a recent Leggett-Garg test designed to try to rule out the mundane second possibility. We tailor this Leggett-Garg test to the IBM 5Q Quantum Experience system and find compelling evidence that qubit Q2 of the system cannot be described by noninvasive macrorealism.
Why This Paper Matters
- This paper contributes to the Superconducting Qubits research area in the Quantum Articles archive.
- It adds a 2016 reference point for readers tracking recent quantum research.
- The Leggett-Garg inequality holds for any macrorealistic system that is being measured noninvasively.
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