4 ms·
Paper is here: http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.114.191803 http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.114...
by ISL 11y ago
Paper is here: http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.114.191803 http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.114...