3 ms·
here is the journal: https://journals.aps.org/prx/pdf/10.1103/PhysRevX.5.011007 https://journals.aps.org/prx/pdf/10.1103/PhysRevX.5.011007
by knowbody 12y ago
here is the journal: https://journals.aps.org/prx/pdf/10.1103/PhysRevX.5.011007 https://journals.aps.org/prx/pdf/10.1103/PhysRevX.5.011007