2024
Subspace-Search Quantum Imaginary Time Evolution for Excited State Computations
Cianci C, Santos L, Batista V. Subspace-Search Quantum Imaginary Time Evolution for Excited State Computations. Journal Of Chemical Theory And Computation 2024, 20: 8940-8947. PMID: 39352769, DOI: 10.1021/acs.jctc.4c00915.Peer-Reviewed Original ResearchNoisy intermediate-scale quantumQuantum imaginary time evolutionImaginary time evolutionExcited statesQuantum (NISQStudy of excited statesComputation of excited statesLow-lying excited statesTime evolutionVariational quantum imaginary time evolutionCalculation of low-lying excited statesExcited state computationsQuantum systemsSmall molecular systemsVariational quantumLiH moleculeQuantum devicesGround stateQuantum computationQuantumMolecular systemsState algorithmState computationsLocal minimaVariational algorithm
2023
Boosting quantum amplitude exponentially in variational quantum algorithms
Kyaw T, Soley M, Allen B, Bergold P, Sun C, Batista V, Aspuru-Guzik A. Boosting quantum amplitude exponentially in variational quantum algorithms. Quantum Science And Technology 2023, 9: 01lt01. DOI: 10.1088/2058-9565/acf4ba.Peer-Reviewed Original ResearchVariational quantum algorithmsQuantum algorithmsNoisy intermediate-scale quantum computersIntermediate-scale quantum computersImaginary time evolutionQuantum statesClassical optimization algorithmsGlobal optimization methodGround-state optimizationInitial quantum stateNon-vanishing probabilityQuantum amplitudesQuantum computerTransmon qubitsNumerical experimentsUnique maximumOptimization algorithmInitial wavefunctionChemical physicsPolynomial numberState optimizationAmplitude amplificationTime evolutionGeneral frameworkRange of algorithms