@article{oai:oist.repo.nii.ac.jp:00002135,
 author = {Man, Michael K. L. and Madéo, Julien and Sahoo, Chakradhar and Xie, Kaichen and Campbell, Marshall and Pareek, Vivek and Karmakar, Arka and Wong, E Laine and Al-Mahboob, Abdullah and Chan, Nicholas S. and Bacon, David R. and Zhu, Xing and Abdelrasoul, Mohamed M. M. and Li, Xiaoqin and Heinz, Tony F. and da Jornada, Felipe H. and Cao, Ting and Dani, Keshav M.},
 issue = {17},
 journal = {Science Advances},
 month = {Apr},
 note = {An exciton, a two-body composite quasiparticle formed of an electron and hole, is a fundamental optical excitation in condensed matter systems. Since its discovery nearly a century ago, a measurement of the excitonic wave function has remained beyond experimental reach. Here, we directly image the excitonic wave function in reciprocal space by measuring the momentum distribution of electrons photoemitted from excitons in monolayer tungsten diselenide. By transforming to real space, we obtain a visual of the distribution of the electron around the hole in an exciton. Further, by also resolving the energy coordinate, we confirm the elusive theoretical prediction that the photoemitted electron exhibits an inverted energy-momentum dispersion relationship reflecting the valence band where the partner hole remains, rather than that of conduction band states of the electron.},
 title = {Experimental measurement of the intrinsic excitonic wave function},
 volume = {7},
 year = {2021}
}