公开(公告)号：US20240177046A1

公开(公告)日：2024-05-30

申请号：US18518087

申请日：2023-11-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ki-Sung JIN ,  GYU-IL CHA

IPC: G06N10/80

CPC classification number: G06N10/80

Abstract: Disclosed herein are a quantum simulation apparatus and method using logical qubit synthesis. The quantum simulation apparatus is configured to generate a new virtual quantum device configured using magic qubits by dividing each logical qubit into multiple areas, extract logical qubit information from a target virtual quantum device that is a target of a logical Controlled NOT (CNOT) operation, synthesize the extracted logical qubit information into the new virtual quantum device, perform a logical CNOT operation in the synthesized virtual quantum device, extract logical qubit information from a result of the logical CNOT operation in the synthesized virtual quantum device, and synthesize the logical qubit information extracted from the result of the logical CNOT operation into the target virtual quantum device.

公开(公告)号：US20180307638A1

公开(公告)日：2018-10-25

申请号：US15895752

申请日：2018-02-13

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ki-Sung JIN ,  Young-Kyun KIM ,  Hong-Yeon KIM ,  Sang-Min LEE

IPC: G06F13/28 ,  G06F3/06 ,  G06F17/30 ,  H04L29/08 ,  G06F9/54

CPC classification number: G06F13/28 ,  G06F3/0643 ,  G06F3/0659 ,  G06F9/544 ,  G06F9/545 ,  G06F16/1824 ,  G06F16/188 ,  H04L67/1097

Abstract: Disclosed herein are a method and system for supporting user-level DMA I/O in a distributed file system environment. The system includes a DMA I/O library located in a user space and configured to process data-processing requests of an application using a control channel or a data channel, a distributed file system client process located in the user space and configured to process data while communicating with a remote distributed storage cluster, a VFS located in a kernel space, and a FUSE kernel module located in the kernel space, wherein the control channel is a path along which the DMA I/O library and the distributed file system client process are connected to each other through the VFS and the FUSE kernel module, and wherein the data channel is a path along which the DMA I/O library and the distributed file system client process are directly connected to each other.

公开(公告)号：US20250061361A1

公开(公告)日：2025-02-20

申请号：US18802087

申请日：2024-08-13

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Soo-Cheol OH ,  Young-Chul KIM ,  Chei-Yol KIM ,  Jin-Ho ON ,  Sang-Min LEE ,  Eun-Young CHO ,  Ki-Sung JIN ,  Gyu-Il CHA

IPC: G06N10/20

Abstract: Disclosed herein is an apparatus and method for executing a magic state distillation circuit in a logical qubit quantum system. The apparatus outputs a distilled magic state |Y>L by executing a magic state |Y>L distillation circuit in which multiple multi-target CNOT operations are performed in parallel and outputs a distilled magic state |A>L by executing a magic state |A>L distillation circuit in which multiple multi-target CNOT operations are performed in parallel. The magic state |Y>L distillation circuit is configured with three code blocks, code blocks 1 and 2 being configured with multiple multi-target CNOT operations and code block 3 being configured with SL operations and measurement operations, and the magic state |A>L distillation circuit is configured with three code blocks, code blocks 1 and 2 being configured with multiple multi-target CNOT operations and code block 3 being configured with TL+ operations and measurement operations.

公开(公告)号：US20240303523A1

公开(公告)日：2024-09-12

申请号：US18515564

申请日：2023-11-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sang-Min LEE ,  Young-Chul KIM ,  Soo-Cheol OH ,  Jin-Ho ON ,  Ki-Sung JIN ,  Gyu-Il CHA

IPC: G06N10/40

CPC classification number: G06N10/40

Abstract: Disclosed herein are an apparatus and method for performing a fault-tolerant logical Hadamard gate operation. The apparatus is configured to perform a transversal logical Hadamard (H) operation of defining a logical quantum state and logical operators of a Hadamard-transformed logical qubit on a logical qubit of a prepared encoding flavor having an arbitrary quantum state, deform a boundary of the logical qubit while maintaining the logical quantum state using a boundary deformation technology, and perform an automatic flip of transforming a flavor of the logical qubit by flipping a rotated surface code while maintaining the logical quantum state and the definition of logical operators.