Quantum algorithm block-encodes Riccati solutions for m-particle m-hole RPA using Riesz projectors and QSVT, claiming linear system-size scaling under sparsity and polynomial cost in excitation rank m.
Papakonstantinou, Second random-phase approximation, thouless’ theorem, an d the stability condition reexamined and clarified Phys
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The review describes how SSRPA fixes SRPA pathologies in EDF theory, presents applications to charge-conserving and charge-exchange excitations with experimental comparisons, and discusses impacts on the nuclear equation of state.
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Quantum Solvers for Nonlinear Matrix Equations in Quantum Chemistry
Quantum algorithm block-encodes Riccati solutions for m-particle m-hole RPA using Riesz projectors and QSVT, claiming linear system-size scaling under sparsity and polynomial cost in excitation rank m.
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Recent applications of the subtracted second RPA method
The review describes how SSRPA fixes SRPA pathologies in EDF theory, presents applications to charge-conserving and charge-exchange excitations with experimental comparisons, and discusses impacts on the nuclear equation of state.