Room-temperature storage of quantum entanglement using decoherence-free subspace in a solid-state spin system
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2017-10-31 |
| Journal | Physical review. B./Physical review. B |
| Authors | Fei Wang, Yufei Huang, Zhuo Zhang, Chong Zu, PanāYu Hou |
| Institutions | Tsinghua University, University of Michigan |
| Citations | 15 |
Abstract
Section titled āAbstractāWe experimentally demonstrate room-temperature storage of quantum\nentanglement using two nuclear spins weakly coupled to the electronic spin\ncarried by a single nitrogen-vacancy center in diamond. We realize universal\nquantum gate control over the three-qubit spin system and produce entangled\nstates encoded within the decoherence-free subspace of the two nuclear spins.\nBy injecting arbitrary collective noise, we demonstrate that the\ndecoherence-free entangled state has coherence time longer than that of other\nentangled states by an order of magnitude in our experiment.\n