Thermal quantum coherence: a comparative study of molybdenum disulfide versus graphene

Abstract This study examines quantum coherence in molybdenum disulfide MoS 2 by considering thermal fluctuations and the spin–orbit coupling of molybdenum’s d orbitals. Our results reveal that at the ground state, the system exhibits significant coherence, particularly for high values of the wave vector k . Interestingly, this coherence improves with increasing temperature before asymptotically decreasing towards zero. In conclusion, we have shown that graphene generally outperforms molybdenum due to its perfect two-dimensional structure thanks to the high mobility of electrons in its conduction bands. Moreover, these findings enable predictions about the behavior of other materials with similar band structures based on their crystal lattice interactions.