Entanglement in a quantum annealing processor; Arxiv.org
| Parent link: | Arxiv.org.— 2014.— Quantum Physics |
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| Ente Autore: | |
| Altri autori: | , , , , , , , , , , , , , , , , , , , , , , , , , |
| Riassunto: | Title screen Entanglement lies at the core of quantum algorithms designed to solve problems that are intractable by classical approaches. One such algorithm, quantum annealing (QA), provides a promising path to a practical quantum processor. We have built a series of scalable QA processors consisting of networks of manufactured interacting spins (qubits). Here, we use qubit tunneling spectroscopy to measure the energy eigenspectrum of two- and eight-qubit systems within one such processor, demonstrating quantum coherence in these systems. We present experimental evidence that, during a critical portion of QA, the qubits become entangled and that entanglement persists even as these systems reach equilibrium with a thermal environment. Our results provide an encouraging sign that QA is a viable technology for large-scale quantum computing |
| Lingua: | inglese |
| Pubblicazione: |
2014
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| Soggetti: | |
| Accesso online: | http://arxiv.org/abs/1401.3500 |
| Natura: | Elettronico Capitolo di libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=637032 |