Letter to the Editor

Comment on “Does the Equivalence between Gravitational Mass and Energy Survive for a Composite Quantum Body?”

Table 1

Properties of some relevant quantum-mechanical systems.

System Excitation Radiation

(i) Proton
(ii) Heavy nucleus Isoscalar giant monopole resonance Particle emission
(iii) H atom Photon
(iv) (fullerene) 0.061 eV “breathing” mode Photon