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| Pàgina inicial > Articles > Articles publicats > Emergence of intra-particle entanglement and time-varying violation of Bell's inequality in Dirac matter |
(Institut Català de Nanociència i Nanotecnologia) (Institut Català de Nanociència i Nanotecnologia)| Data: | 2020 |
| Resum: | We demonstrate the emergence and dynamics of intraparticle entanglement in massless Dirac fermions. This entanglement, generated by spin-orbit coupling, arises between the spin and sublattice pseudospin of electrons in graphene. The entanglement is a complex dynamic quantity but is generally large, independent of the initial state. Its time dependence implies a dynamical violation of a Bell inequality, while its magnitude indicates that large intraparticle entanglement is a general feature of graphene on a substrate. These features are also expected to impact entanglement between pairs of particles, and may be detectable in experiments that combine Cooper pair splitting with nonlocal measurements of spin-spin correlation in mesoscopic devices based on Dirac materials. |
| Ajuts: | European Commission 754558 European Commission 785219 European Commission 881603 Ministerio de Economía y Competitividad SEV-2017-0706 |
| Nota: | Altres ajuts: ICN2 is funded by the CERCA Programme/Generalitat de Catalunya. |
| Drets: | Tots els drets reservats.  |
| Llengua: | Anglès |
| Document: | Article ; recerca ; Versió sotmesa a revisió |
| Matèria: | Bell inequalities ; Bell's inequality ; Complex dynamics ; Massless dirac fermions ; Mesoscopic devices ; Non-local measurement ; Spin-spin correlation ; Time dependence |
| Publicat a: | Physical review B, Vol. 102, issue 4 (Jul. 2020) , art. 041403, ISSN 2469-9969 |
8 p, 458.3 KB |
