公开(公告)号：US20200311589A1

公开(公告)日：2020-10-01

申请号：US16369885

申请日：2019-03-29

申请人： International Business Machines Corporation

发明人： Pauline Ollitrault ,  Panagiotis Barkoutsos ,  Stefan Woerner ,  Marco Pistoia ,  Antonio Mezzacapo ,  Ivano Tavernelli

IPC分类号： G06N10/00 ,  G06F17/16 ,  G06F17/14 ,  G06F15/16

摘要： A method for calculating excited state properties of a molecular system using a hybrid classical-quantum computing system includes determining, using a quantum processor and memory, a ground state wavefunction of a combination of quantum logic gates. In an embodiment, the method includes forming a set of excitation operators. In an embodiment, the method includes forming a set of commutators from the set of excitation operators and a Hamiltonian operator. In an embodiment, the method includes mapping the set of commutators onto a set of qubit states, the set of qubit states corresponding to a set of qubits of the quantum processor. In an embodiment, the method includes evaluating, using the quantum processor and memory, the set of commutators. In an embodiment, the method includes causing a quantum readout circuit to measure an excited state energy from the set of computed commutators.

公开(公告)号：US20200097848A1

公开(公告)日：2020-03-26

申请号：US16139861

申请日：2018-09-24

申请人： International Business Machines Corporation

发明人： Stefan Woerner ,  Panagiotis Barkoutsos ,  Ivano Tavernelli

IPC分类号： G06N7/08 ,  G06N99/00 ,  G06F17/11 ,  G06F15/16 ,  G06F9/50 ,  G06F9/38

摘要： Techniques for facilitating utilizing a quantum computing circuit in conjunction with a stochastic control problem are provided. In one embodiment, a system is provided that comprises a quantum computing circuit that prepares a quantum state that represents a stochastic control problem. The system can further comprise a classical computing device that determines parameters for the quantum computing circuit.