QunaSys Tech BlogQuantum-Selected Configuration Interaction: Classical Diagonalization of Hamiltonians in Subspaces…IntroductionFeb 9Feb 9

QunaSys Tech BlogAnalytical gradient of energies with a sophisticated calculation method by quantum computers…Researchers at QunaSys Inc., Osaka University, and Mitsubishi Chemical Co. have developed an algorithm for calculating the gradient of…Feb 18, 20221Feb 18, 20221

QunaSys Tech BlogAccelerating variational quantum algorithmsA novel way to estimate expectation values on quantum computersJan 13, 2022Jan 13, 2022

QunaSys Tech BlogComputing the Green's function on near-term quantum computersMethods to calculate an indispensable tool in quantum physicsMar 22, 2021Mar 22, 2021

QunaSys Tech BlogQuantum machine learning of quantum data with NISQ devicesLearning wavefunctions of molecules in quantum chemistryFeb 15, 2021Feb 15, 2021

QunaSys Tech BlogCalculating derivatives of molecular electronic energy on a quantum computerWhile classical computers have bits representing either 0 or 1 values, quantum computers have qubits which provide arbitrary superposition…Nov 30, 2020Nov 30, 2020

QunaSys Tech BlogComprehensive approach for resolving energy spectrum with symmetry using a quantum computer“Symmetry” appears everywhere in modern physics, and it plays a significant role in understanding various properties of a quantum system…Nov 16, 2020Nov 16, 2020

QunaSys Tech BlogTesting important industrial problems with Honeywell’s Ion-Trap quantum computerCalculating transition amplitudes of Azobenzene isomers using Honeywell System Model HØNov 2, 2020Nov 2, 2020

QunaSys Tech BlogQuantum algorithm for calculating electronically excited states of moleculesSubspace-Search Variational Quantum EigensolverOct 19, 2020Oct 19, 2020

QunaSys Tech BlogAccelerate quantum computation from a classical approachA simple, efficient, and robust optimizer for NISQ devicesOct 1, 20202Oct 1, 20202