4 papers · 1 filter
Corner Charge Fluctuations in Higher Dimensions
Xiao-Chuan Wu, Pok Man Tam, Xuyang Liang +4
Measuring charge fluctuations within a subregion provides a powerful probe of quantum many-body systems. In two spatial dimensions, the shape dependence of the dimensionless corner…
Multi wavefunction overlap and multi entropy for topological ground states in (2+1) dimensions
Bowei Liu, Junjia Zhang, Shuhei Ohyama +2
Multi-wavefunction overlaps -- generalizations of the quantum mechanical inner product for more than two quantum many-body states -- are valuable tools for studying many-body physi…
Higher Berry Connection for Matrix Product States
Shuhei Ohyama, Shinsei Ryu
In one spatial dimension, families of short-range entangled many-body quantum states, parameterized over some parameter space, can be topologically distinguished and classified by…
Higher Berry Phase from Projected Entangled Pair States in (2+1) dimensions
Shuhei Ohyama, Shinsei Ryu
We consider families of invertible many-body quantum states in spatial dimensions that are parameterized over some parameter space . The space of such families is expected t…