217 citations · 1.1k across the 28 of their papers we have counts for
6 papers · 1 filter
Gappability Index for Quantum Many-Body Systems
Yuan Yao, Masaki Oshikawa, Akira Furusaki
We propose an index which characterizes the degree of ingappability, namely the difficulty to induce a unique ground state with a nonvanishing excitation gap, in th…
Geometric approach to Lieb-Schultz-Mattis theorem without translation symmetry under inversion or rotation symmetry
Yuan Yao, Akira Furusaki
We propose a geometric {approach to Lieb-Schultz-Mattis theorem for} quantum many-body systems with discrete spin-rotation symmetries and lattice inversion or rotation symmetry, bu…
Accurate energies of transition metal atoms, ions, and monoxides using selected configuration interaction and density-based basis-set corrections
Yuan Yao, Emmanuel Giner, Tyler A. Anderson +2
The semistochastic heat-bath configuration interaction (SHCI) method is a selected configuration interaction plus perturbation theory method that has provided near-full configurati…
Natural Gradient Optimization for Optical Quantum Circuits
Yuan Yao, Pierre Cussenot, Richard A. Wolf +1
Optical quantum circuits can be optimized using gradient descent methods, as the gates in a circuit can be parametrized by continuous parameters. However, the parameter space as se…
Orbital Optimization in Selected Configuration Interaction Methods
Yuan Yao, C. J. Umrigar
We study several approaches to orbital optimization in selected configuration interaction plus perturbation theory (SCI+PT) methods, and test them on the ground and excited states…
Fast differentiable evolution of quantum states under Gaussian transformations
Yuan Yao, Filippo M. Miatto
In a recent work we presented a recursive algorithm to compute the matrix elements of a generic Gaussian transformation in the photon-number basis. Its purpose was to evolve a quan…