qiskit-nature-solver

# Qiskit Nature Solver ## Purpose Provides expert guidance on quantum chemistry and materials science calculations using Qiskit Nature, enabling ground state and excited state solutions. ## Capabilities - VQE ground state solver - QEOM excited state solver - Fermionic operator handling - Molecular driver integration - Active space reduction - Lattice model construction - Property calculation - Qubit converter management ## Usage Guidelines 1. **Problem Setup**: Define molecular system using supported drivers 2. **Mapping Selection**: Choose qubit mapping strategy (Jordan-Wigner, Parity, etc.) 3. **Solver Configuration**: Set up VQE with ansatz and optimizer 4. **Execution**: Run ground state calculation with convergence monitoring 5. **Analysis**: Extract energies, wavefunctions, and molecular properties ## Tools/Libraries - Qiskit Nature - Qiskit Algorithms - PySCF driver - Gaussian driver - Qiskit Aer