1. Department of Physics, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
2. Department of Chemistry, Saint Louis University, 3501 Laclede Ave., St. Louis, Missouri 63103,
USA
3. Potsdam Institute for Climate Impact Research, Telegraphenberg, Potsdam D-14415, Germany
4. Institute of Physics, Humboldt University Berlin, Berlin D-12489, Germany
5. Department of Control Theory, Nizhny Novgorod State University, Gagarin Avenue 23, 606950 Nizhny Novgorod,
Russia