Effect of confinement on ammonia inversion Subhasish Mallick, Brijesh Kumar Mishra, Pradeep Kumar and Narayanasami Sathyamurthy Eur. Phys. J. D, 75 3 (2021) 113 Published online: 29 March 2021 DOI: 10.1140/epjd/s10053-021-00118-3