公开(公告)号：US20220414513A1

公开(公告)日：2022-12-29

申请号：US17841511

申请日：2022-06-15

Applicant: IONQ, INC. ,  University of Maryland

Inventor： Pradeep NIROULA ,  Yunseong NAM

IPC: G06N10/20 ,  G06N10/80

Abstract: A method of performing computation using a hybrid quantum-classical computing system comprising a classical computer, a system controller, and a quantum processor includes identifying, by use of the classical computer, a molecular dynamics system to be simulated, computing, by use of the classical computer, multiple energies associated with particles of the molecular dynamics system as part of the simulation, based on the Ewald summation method, the computing of the multiple energies comprising partially offloading the computing of the multiple energies to the quantum processor, and outputting, by use of the classical computer, a physical behavior of the molecular dynamics system determined from the computed multiple energies.

公开(公告)号：US20220206866A1

公开(公告)日：2022-06-30

申请号：US17531520

申请日：2021-11-19

Applicant: IONQ, INC. ,  University of Maryland

Inventor： Andrii MAKSYMOV ,  Pradeep NIROULA ,  Yunseong NAM

IPC: G06F9/50 ,  G06N10/20 ,  G06N10/40

Abstract: A method of performing a quantum computation process includes mapping, by a classical computer, logical qubits to physical qubits of a quantum processor so that quantum circuits are executable using the physical qubits of the quantum processor and a total infidelity of the plurality of quantum circuits is minimized, wherein each of the physical qubits comprise a trapped ion, and each of the plurality of quantum circuits comprises single-qubit gates and two-qubit gates within the plurality of the logical qubits, calibrating, by a system controller, two-qubit gates within a first plurality of pairs of physical qubits, such that infidelity of the two-qubit gates within the first plurality of pairs of physical qubit is lowered, executing the plurality of quantum circuits on the quantum processor, by applying laser pulses that each cause a single-qubit gate operation and a two-qubit gate operation in each of the plurality of quantum circuits on the plurality of physical qubits, measuring, by the system controller, population of qubit states of the physical qubits in the quantum processor after executing the plurality of quantum circuits on the quantum processor, and outputting, by the classical computer, the measured population of qubit states of the physical qubits as a result of the execution the plurality quantum circuits, wherein the result of the execution the plurality quantum circuits are configured to be displayed on a user interface, stored in a memory of the classical computer, or transferred to another computational device.

公开(公告)号：US20220198105A1

公开(公告)日：2022-06-23

申请号：US17531366

申请日：2021-11-19

Applicant: IONQ, INC. ,  University of Maryland

Inventor： Pradeep NIROULA ,  Wengang ZHANG ,  Yunseong NAM

IPC: G06F30/25 ,  G06N10/80

Abstract: A method of performing a computational process includes transforming, a first register of a quantum processor to a charge encoded state in which charges of interacting particles to be simulated are encoded, transforming a second register of the quantum processor to a position encoded state in which positions of the interacting particles are encoded, performing a first phase shift operation, including shifting a phase of the first and second registers by kinetic energies of the interacting particles, performing a second phase shift operation, including shifting the phase of the first and second registers by pair-wise Coulomb potential energies of the interacting particles, measuring the phase of the first and second registers, transmitting the measured phase of the first and second registers to a classical computer, and the measured phase including a sum of the kinetic energies and the pair-wise Coulomb potential energies of the interacting particles.

公开(公告)号：US20240013078A1

公开(公告)日：2024-01-11

申请号：US18369327

申请日：2023-09-18

Applicant: IONQ, INC. ,  University of Maryland, College Park

Inventor： Pradeep NIROULA ,  Yunseong NAM

IPC: G06N10/00 ,  G06F9/30

CPC classification number: G06N10/00 ,  G06F9/30032 ,  G06F9/30101

Abstract: A method of determining a pattern in a sequence of bits using a quantum computing system includes setting a first register of a quantum processor in a superposition of a plurality of string index states, encoding a bit string in a second register of the quantum processor, encoding a bit pattern in a third register of the quantum processor, circularly shifting qubits of the second register conditioned on the first register, amplifying an amplitude of a state combined with the first register in which the circularly shifted qubits of the second register matches qubits of the third register, measuring an amplitude of the first register and determining a string index state of the plurality of string index states associated with the amplified state, and outputting, by use of a classical computer, a string index associated with the first register in the measured state.

公开(公告)号：US20210233617A1

公开(公告)日：2021-07-29

申请号：US17162566

申请日：2021-01-29

Applicant: IONQ, INC.

Inventor： Pradeep NIROULA ,  Wengang ZHANG ,  Yunseong NAM

IPC: G16C10/00 ,  G06N10/00 ,  G06F17/14 ,  G06F30/20

Abstract: A method of performing computation using a hybrid quantum-classical computing system comprising a classical computer and a quantum processor includes computing, by use of a classical computer, short-range inter-particle interaction energies and self-energies of a group of interacting particles, transforming the quantum processor from an initial state to a charge-position encoded state, applying Quantum Fourier transformation to the quantum processor, measuring an estimated amplitude of the Fourier transformed superposition state on the quantum processor, computing long-range inter-particle interaction energies based on the measured estimated amplitude of the Fourier transformed superposition state, and computing and outputting a sum of the short-range inter-particle interaction energies, the self-energies of the system, and the long-range inter-particle interaction energies as a total inter-particle interaction energies of the system.