308 citations · 1.8k across the 76 of their papers we have counts for
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quant-ph2013★ 10 cited
Modulus of convexity for operator convex functions
Isaac H. Kim
Given an operator convex function , we obtain an operator-valued lower bound for , . The lower bound is expressed in terms of…
cond-mat.str-el2013★ 8 cited
Entropic topological invariant for a gapped one-dimensional system
Isaac H. Kim
We propose an order parameter for a general one-dimensional gapped system with an open boundary condition. The order parameter can be computed from the ground state entanglement en…
quant-ph2013★ 30 cited
Long-range entanglement is necessary for a topological storage of quantum information
Isaac H. Kim
A general inequality between entanglement entropy and a number of topologically ordered states is derived, even without using the properties of the parent Hamiltonian or the formal…