734 citations · 6k across the 61 of their papers we have counts for
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Gravitational anomaly of 3+1 dimensional Z_2 toric code with fermionic charges and fermionic loop self-statistics
Lukasz Fidkowski, Jeongwan Haah, Matthew B. Hastings
Quasiparticle excitations in dimensions can be either bosons or fermions. In this work, we introduce the notion of fermionic loop excitations in dimensional topological…
Boundaries for the Honeycomb Code
Jeongwan Haah, Matthew B. Hastings
We introduce a simple construction of boundary conditions for the honeycomb code that uses only pairwise checks and allows parallelogram geometries at the cost of modifying the bul…
Optimal learning of quantum Hamiltonians from high-temperature Gibbs states
Jeongwan Haah, Robin Kothari, Ewin Tang
We study the problem of learning a Hamiltonian to precision , supposing we are given copies of its Gibbs state at a know…
Classification of Small Triorthogonal Codes
Sepehr Nezami, Jeongwan Haah
Triorthogonal codes are a class of quantum error correcting codes used in magic state distillation protocols. We classify all triorthogonal codes with , where is th…
Dynamically Generated Logical Qubits
Matthew B. Hastings, Jeongwan Haah
We present a quantum error correcting code with dynamically generated logical qubits. When viewed as a subsystem code, the code has no logical qubits. Nevertheless, our measurement…