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quant-ph2025
Exact and Tunable Quantum Krylov Subspaces via Unitary Decomposition
Ayush Asthana
Quantum Krylov subspace methods can extract ground and excited states by diagonalizing the Hamiltonian in a compact variational space. In practice, these spaces are almost always g…
quant-ph2025★ 1 cited
On the generalized eigenvalue problem in subspace-based excited state methods for quantum computers
Prince Frederick Kwao, Srivathsan Poyyapakkam Sundar, Brajesh Gupt +1
Solving challenging problems in quantum chemistry is one of the most promising applications of quantum computers. Within the quantum algorithms proposed for problems in excited sta…