2 citations · 5 across the 6 of their papers we have counts for
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ABJM/BMN Index Matching in the Plane-Wave Limit
Chi-Ming Chang, Kangning Liu
We establish coefficientwise equality between the refined supersymmetric indices of ABJM theory and the BMN matrix model in the plane-wave limit at every fixed positive Chern-Simon…
Finite- BMN index across all vacuum sectors
Chi-Ming Chang, Sarthak Duary, Kangning Liu
We compute the finite- Witten index of BMN matrix quantum mechanics after summing over all partition-labeled supersymmetric vacuum sectors. Starting from the unitary-matrix inte…
Mass-Flow Invariance of -Cohomology in BMN Matrix Quantum Mechanics
Chi-Ming Chang, Zhengyuan Du, Sarthak Duary +2
We study the dependence of the dynamical supercharges of BMN matrix quantum mechanics on the mass parameter . Taking the -derivative at fixed canonical matrix variables, we s…
Fortuity in SYK Models
Chi-Ming Chang, Yiming Chen, Bik Soon Sia +1
We study the fortuity phenomenon in supersymmetric Sachdev-Ye-Kitaev (SYK) models. For generic choices of couplings, all the BPS states in the SUSY SYK model are fo…
Witten index of BMN matrix quantum mechanics
Chi-Ming Chang
We compute the Witten index of the Berenstein-Maldacena-Nastase matrix quantum mechanics, which counts the number of ground states as well as the difference between the numbers of…
Split representation in celestial holography
Chi-Ming Chang, Reiko Liu, Wen-Jie Ma
We develop a split representation for celestial amplitudes in celestial holography, by cutting internal lines of Feynman diagrams in Minkowski space. More explicitly, the bulk-to-b…