1 Australian Attosecond Science facility, Centre for Quantum Dynamics, Griffith University, Nathan, Queensland, Australia.
2 Australian Attosecond Science facility, Centre for Quantum Dynamics, Griffith University, Nathan, Queensland, Australia. h.xu@griffith.edu.au.
3 School of Nuclear Science and Technology, Lanzhou University, Lanzhou, China.
4 Department of Physics and Astronomy, Drake University, Des Moines, IA, USA.
5 Department of Physics, University of Central Florida, Orlando, FL, USA.
6 Research School of Physics and Engineering, The Australian National University, Canberra, Australian Capital Territory, Australia.
7 Centre for Relativistic Laser Science, Institute for Basic Science, Gwangju, South Korea.
8 Australian Attosecond Science facility, Centre for Quantum Dynamics, Griffith University, Nathan, Queensland, Australia. r.sang@griffith.edu.au.
9 Australian Attosecond Science facility, Centre for Quantum Dynamics, Griffith University, Nathan, Queensland, Australia. i.litvinyuk@griffith.edu.au.
In this Letter, the statement 'I.I. and A.B. performed computations at the NCI Australia' was missing from the Acknowledgements section. This has been corrected online.