Publications
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Quantum Brain Group
Quantum Computational Brain
Application
Disease
Fundamentals
Brain and Computation
Potentials and Limitations (with Quantum Verification)
Limit of Classical Computational Model of Brain
Limit of Quantum Computational Model of Brain
Conceptual Architecture and Component
for Interaction with Environment (with Quantum Learning, Data Conversion)
for Scalability (with Quantum Computation, Random Walk)
for Stability (with Quantum Information, Topological Quantum Computation)
Implementation
System Level
Network Level
Unit Level
Quantum Mechanical Brain
Application
Disease
Fundamentals
Brain and Physics
Potentials and Limitations (with Quantum Verification)
Limit of Quantum Mechanical Brain Model
Relation with other Physical Area
Conceptual Architecture and Component
for Interaction with Environment (with Quantum Learning, Data Conversion)
for Scalability (with Quantum Computation, Random Walk)
for Stability (with Quantum Information, Topological Quantum Computation)
Implementation
System Level
Network Level
Unit Level
Study on a Topological Quantum Computation Model for the Orch OR Theory Seung Joo Ahn and Byung-Soo Choi, p. 86, The Science of Consciousness (TSC) 2023
Quantum Learning Group
Quantum Learning Algorithms
Fundamentals
Learning and Physics
Potentials and Limitations
General Overview
Recognition, Classification, Identification
QRNN
QCNN
Quantum Data Processing Engines
Database Engine
Implementation of Quantum Associative Memory and Efficiency Analysis 김화연， 장아름， 최병수, 한국정보과학회 학술발표논문집, 1416-1418, 2016
Quantum Elementary Circuits for Learning
State Preparation
Efficient quantum algorithms to construct arbitrary Dicke states K Chakraborty, BS Choi, A Maitra, S Maitra, Quantum Information Processing, 13, 2049-2069, 2014
Quantum Computing Group
Quantum Computing Algorithms
Fundamentals
Computation and Physics
Potentials and Limitations
General Overview
Applications of an Entangled Quantum Internet R Van Meter, BS Choi, network 15, 3, 2008
Quantum Simulation
Quantum Computing Performance Analysis of the Ground-State Estimation Problem BS Choi, Korean Journal of Optics and Photonics 29(2), 58-63, 2018
Cryptanalysis
Exact quantum algorithm to distinguish Boolean functions of different weights SL Braunstein, BS Choi, S Ghosh, S Maitra, Journal of Physics A: Mathematical and Theoretical 40(29), 8441, 2007
Quantum algorithm for the asymmetric weight decision problem and its generalization to multiple weights BS Choi, SL Braunstein, Quantum Information Processing 10(2), 177-188, 2011
Optimality proofs of quantum weight decision algorithms BS Choi, Quantum Information Processing 11(1), 123-136
Quantum Function Processing Engines
Optimization Engine
Random Walk Engine
Search Engine
Quantum partial search of a database with several target items BS Choi, VE Korepin, Quantum Information Processing 6(4), 243-254, 2007
Sure success partial search BS Choi, TA Walker, SL Braunstein, Quantum Information Processing 6(1), 1-8, 2007
Quantum Elementary/Arithmetic Circuits
Multiplier
Quantum modular multiplication SM Cho, A Kim, D Choi, BS Choi, SH Seo, IEEE Access 8, 213244-213252, 2020
Adder
A Θ(√n)-depth quantum adder on the 2D NTC quantum computer architecture BS Choi, R Van Meter, ACM Journal on Emerging Technologies in Computing Systems (JETC) 8(3), 24:1-22
On the effect of quantum interaction distance on quantum addition circuits BS Choi, R Van Meter, ACM Journal on Emerging Technologies in Computing Systems (JETC) 7(3), 11:1-17
Quantum Information Group
Fault-Tolerant Quantum Computation Theory
Overview
Technology Trend of Fault-Tolerant Quantum Computing Y Hwang, TW Kim, CH Baek, SU Cho, HS Kim, BS Choi, Electronics and Telecommunications Trends 37(2), 1-10, 2022
결함 허용 양자 컴퓨팅 연구 개발 동향 백충헌, 황용수, 김태완, 최병수, 전자공학회지 45(4), 40-48, 2018
Fundamentals
Information and Physics
Potentials and Limits
Fault-Tolerant Quantum Computation Components
Architecture
Dual-code quantum computation model BS Choi, Quantum Information Processing 14(8), 2775-2818, 2015
Network
Interoperability in encoded quantum repeater networks S Nagayama, BS Choi, S Devitt, S Suzuki, R Van Meter, Physical Review A 93(4), 042338, 2016
Code Conversion
Quantum circuit and method for implementing heterogeneously encoded logical bell state BS Choi, Y Hwang, US Patent App. 16/343,374, 2019
Fault-tolerant conversion between stabilizer codes by Clifford operations Y Hwang, BS Choi, Y Ko, J Heo, arXiv preprint arXiv:1511.02596, 2015
Cost Comparison between Code Teleportation and Stabilizer Sequence Methods for Quantum Code Conversion BS Choi, 2013 International Conference on ICT Convergence (ICTC), 1083-1087, 2013
Error-Correction Codes
On the construction of stabilizer codes with an arbitrary binary matrix Y Hwang, BS Choi, M Jeon, Quantum information processing 12(1), 467-479, 2013
Quantum Characterization, Verification and Validation Methods
Overview
Fundamentals
Verification and Physics
Potentials and Limits
Architecture and System Level
Gate and Circuit Level
Method of simulating quantum computing system and quantum computing simulation system B Chungheon, BS Choi, US Patent App. 16/924, 522, 2021
Density matrix simulation of quantum error correction codes for near-term quantum devices C Baek, T Ostuka, S Tarucha, BS Choi, Quantum Science and Technology 5(1), 015002, 2019
Device and Pulse Level
Quantum System Group
Quantum Computing System Design and Performance Estimation
for Universal, Scalable, and Reliable Quantum Computing System
Integrated Analysis of Performance and Resources in Large-Scale Quantum Computing Y Hwang, T Kim, C Baek, BS Choi, Physical Review Applied 13(5), 054033, 2020
for NISQ
Implementation of Classical Components
General Overview of Platforms
R&D Status of Quantum Computing Technology CH Baek, YS Hwang, TW Kim, BS Choi, Electronics and Telecommunications Trends 33(1), 20-33, 2018
Trends of Quantum Computing System Development and Applications BS Choi, Electronics and Telecommunications Trends 31(2), 84-94, 2016
Visualizer
Hierarchical Circuit Visualization for Large-Scale Quantum Computing JH Kim, BS Choi, D Jo, Proceedings of the Korean Institute of Information and Commucation Sciences, 2021
3D Circuit Visualization for Large-Scale Quantum Computing J Kim, B Choi, D Jo, Journal of the Korea Institute of Information and Communication Engineering, 2021
Decomposer
Quantum circuit for shifting phase of target qubit based on control qubit T Kim, BS Choi, US Patent App. 16/034,073, 2019
Efficient decomposition methods for controlled-Rn using a single ancillary qubit T Kim, BS Choi, Scientific Reports 8, 5445, 2018
Mapper
Hierarchical system mapping for large-scale fault-tolerant quantum computing Y Hwang, BS Choi, Quantum Information Processing 20(6), 1-24, 2021
Controller
Technical Trend and Challenging Issues for Quantum Computing Control System YH Jeong, BS Choi, Electronics and Telecommunications Trends 36(3), 87-96, 2021
Implementation of Quantum Components
Optical System
Optical System
A software platform for programmable linear optical quantum computer, Y Kwon, BS Choi, IEEE Access 11, 112682-112692, 2023
A Design of Software Architecture for Validate and Verification of Linear-Optical Quantum Computing Platform D Lee, Y Kwon, K Kim, J Lee, BS Choi, IEEE International Conference on Quantum Computing and Engineering (QCE), 359-360, 2023
A Universal and Programmable Software Platform for Linear Optical Quantum Computing Y Kwon, BS Choi, International Workshop on Quantum Compilation (IWQC), 2023
Quantum-Dot System
Quantum-Dot System
Research Trend for Quantum Dot Quantum Computing C Baek, BS Choi, Electronics and Telecommunications Trends 35(2), 79-88, 2020
Logical Qubit
Analysis of physical requirements for simple three-qubit and nine-qubit quantum error correction on quantum-dot and superconductor qubits IK Sohn, S Tarucha, BS Choi, Physical Review A 95(1), 012306, 2017
Physical Qubit
Spin qubits with semiconductor quantum dots S Tarucha, M Yamamoto, A Oiwa, BS Choi, Y Tokura, Principles and Methods of Quantum Information Technologies, 541-567, 2016
SC System
Logical Qubit
Analysis of physical requirements for simple three-qubit and nine-qubit quantum error correction on quantum-dot and superconductor qubits IK Sohn, S Tarucha, BS Choi, Physical Review A 95(1), 012306, 2017
Ion-Trap System
Ion-Trap System
Performance simulator based on hardware resources constraints for ion trap quantum computer M Ahsan, BS Choi, J Kim, International Conference on Computer Design (ICCD), 411-418, 2013
Classical System Group
Theory
Computation Model
Asynchronous Computation Model
Handshake Protocol using Return-to-Zero Data Encoding for High Performance Asynchronous Bus EG Jung, BS Choi, DI Lee, YG Won. IEE Proceedings - Computers and Digital Techniques 150(4), 245-251, 2003
Architecture and Component
Redundant Operation Table
Partial resolution for redundant operation table BS Choi, JD Cho, Microprocessors and Microsystems 32(2), 79-94, 2008
Value Prediction
Cost effective mixed-type value predictor using distributed classification method BS Choi, Microprocessors and Microsystems 29(10), 451-462, 2005
Area and performance analysis of value predictors BS Choi, DI Lee, IEE Proceedings-Computers and Digital Techniques 150(6), 375-386, 2003
Multiplier
Asynchronous Array Multiplier with an Asymmetric Parallel Array Structure CH Park, BS Choi, SJ Kim, EG Jung, DI Lee, IEICE Transactions on Information and Systems 86(7), 1243-1249, 2003
Asynchronous Multiplier with Parallel Array Structure 박찬호, 최병수, 이동익, 전자공학회논문지-SD 39(5), 87-94, 2002
Implementation of Components
Scheduler
Introduction to Shade Introduction to Shade CH PARK, BS CHOI, SJ KIM, EG JUNG, DI LEE, IEICE transactions on information and systems 86(7), 1243-1249, 2003
Instruction Issue Mechanism for Asynchronous Processor TITAC-3 T FUJIKI, BS CHOI, M OZAWA, H NAKAMURA, T NAN'YA, IPSJ SIG Notes 99(41), 1-6, 1999
Processor
High performance microprocessor design methods exploiting information locality and data redundancy for lower area cost and power consumption BS Choi, JA Lee, DS Har, Asia-Pacific Conference on Advances in Computer Systems Architecture, 170-184, 2004
The Design of Delay Insensitive Asynchronous 16-bit Microprocessor BS Choi, DW Lee, DI Lee, ASP-DAC, 33-36 vol. 1, 1999