1. CAS Key Laboratory of Quantum InformationUniversity of Science and Technology of ChinaHefei 230026 China
2. CAS Center For Excellence in Quantum Information and Quantum PhysicsUniversity of Science and Technology of ChinaHefei 230026 China
3. Departamento de FísicaUniversidad de Santiago de Chile (USACH)Avenida Ecuador 3493 9170124 Santiago Chile
4. Center for the Development of Nanoscience and NanotechnologyEstación Central9170124 Santiago Chile
5. Department of Physical ChemistryUniversity of the Basque Country UPV/EHUApartado 644 48080 Bilbao Spain
6. IKERBASQUEBasque Foundation for ScienceMaria Diaz de Haro 3 48013 Bilbao Spain
7. Department of PhysicsShanghai UniversityShanghai 200444 China