Zobrazeno 1 - 2
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pro vyhledávání: '"Masaoka, Rintaro"'
Publikováno v:
Phys. Rev. B 110, 195140 (2024)
Recent case-by-case studies revealed that the dispersion of low energy excitations in gapless frustration-free Hamiltonians is often quadratic or softer. In this work, we argue that this is actually a general property of such systems. By combining a
Externí odkaz:
http://arxiv.org/abs/2406.06414
The dynamic critical exponent $z$ characterizes the finite-size gap in gapless quantum many-body systems. We establish a rigorous lower bound $z \geq 2$ for frustration-free Hamiltonians on any lattice in any spatial dimension, given that their groun
Externí odkaz:
http://arxiv.org/abs/2406.06415