Result for "Optical quantum computer",198

Optical Technologies for Optical Quantum Computing with Continuous Variables | NTT R&D Website

continuous-variable quantum state quantum computer optical component Quantum computers are increasingly seen

https://www.rd.ntt/e/research/JN202304_21560.html

Innovation in Computing Powered by Photonic Technology--Evolution toward IOWN 2.0 and 3.0, and the Leap to Quantum | NTT R&D Website

artificial intelligence (AI) era. The second is an optical quantum computer. This technology surpasses the

https://www.rd.ntt/e/forum/2025/keynote_1.html

Expectations and Prospects for Innovation in Quantum Technology | NTT R&D Website

computer[5], quantum-information technology with superconducting qubits[6], an optical lattice-clock

https://www.rd.ntt/e/research/JN202304_21549.html

Secure Optical-transport-network Technology in Anticipation of the Quantum Computer Era | NTT R&D Website

Secure Optical-transport-network Technology in Anticipation of the Quantum Computer Era | NTT R&D

https://www.rd.ntt/e/research/JN202302_20961.html

Quantum Computation with Neutral Atoms

realize a scalable quantum computer with double optical lattices [2]. Employing this scheme we can compose

https://www.rd.ntt/e/brl/result/activities/file/report04/report23.html

Aiming to Build Neural Networks and Quantum Computers through Analog Manipulation of Light Waves | NTT R&D Website

computing optical metasurface optical quantum computer As data traffic on networks continues to rapidly

https://www.rd.ntt/e/research/JN202411_30167.html

IOWN∴Quantum Leap | NTT R&D Website

community, we aim to develop a large-scale, general-purpose optical quantum computer by 2030. Global-scale

https://www.rd.ntt/e/forum/2025/keynote_2.html

Broadband Continuous-wave Optical Quadrature Squeezer for Ultra-fast Optical Quantum Computers | NTT R&D Website

niobate optical quadrature squeezer optical quantum computer An optical quadrature squeezer is expected to

https://www.rd.ntt/e/research/JN202206_18572.html

Heterogeneous Materials and Devices Research Group｜Device Technology Laboratories｜NTT R&D Website

. ・Optical devices for an ultra-fast optical quantum computer Publications 【 Press Release 】 ・October 1, 2015

https://www.rd.ntt/e/dtl/technology/heterogeneous_materials_and_devices_research_group_ntt_device_technology_laboratories_ntt_rd_website.html

Against a dogma, quantum repeaters for long-distance quantum communication are made all photonic.｜NTT Basic Research Laboratories | NTT R&D Website

an optical quantum computer as the future of the developments of optical devices required by the all

https://www.rd.ntt/e/brl/latesttopics/2015/04/latest_topics_201504151801.html

Toward Creation of a System Architecture for Quantum Computers | NTT R&D Website

of a System Architecture for Quantum ComputersNTT Computer and Data Science Laboratories Toward

https://www.rd.ntt/e/research/JN202309_23082.html

First proof-of-principle experiment of quantum repeaters with all photonics｜NTT Basic Research Laboratories | NTT R&D Website

realize than an all-optical quantum computer*6. However, since the scheme is based on a new principle

https://www.rd.ntt/e/brl/latesttopics/2019/01/latest_topics_201901252028.html

Optical Circuit Technologies for Next-generation Computing Using Light | NTT R&D Website

. Continuous-variable-type optical quantum information processing A quantum computer using a continuous

https://www.rd.ntt/e/research/JN202206_18579.html

D01-e.pdf

optical quantum computer capable of solving various problems. #D01 The industrialization of quantum

https://www.rd.ntt/forum/2025/doc/D01-e.pdf

no_25_en.pdf

NTT Basic Research Laboratories Ultracold quantum gasses in optical lattices - Studies on many

https://www.rd.ntt/brl/event/splaza2009/poster/EN/no_25_en.pdf

D03-e.pdf

with error mitigation Reliable optical quantum computer system To develop techniques to select accurate

https://www.rd.ntt/forum/2025/doc/D03-e.pdf

Uncrackable quantum cryptography over 'doubled' distances｜NTT Basic Research Laboratories | NTT R&D Website

from photon detectors (for instance, by using optical switches). *13 ... All-photonic quantum computer

https://www.rd.ntt/e/brl/latesttopics/2015/12/latest_topics_201512161930.html

Secure Optical Transport Network｜NTT R&D Website

secure optical transport network. 3. Issues and proposals (I): Possibility of advances in quantum

https://www.rd.ntt/e/research/JN202111_16202.html

Activities toward New-principle Computers｜NTT R&D Website

different from those of conventional computers is the quantum computer. In current information processing

https://www.rd.ntt/e/research/JN202103_10916.html

An on-chip quantum buffer realized｜NTT Basic Research Laboratories | NTT R&D Website

/11/13 An on-chip quantum buffer realized - A key component for a photonic quantum computer on a chip

https://www.rd.ntt/e/brl/latesttopics/2013/11/latest_topics_201311130702.html

Extracting Quantum Power by Using Algorithms and Their Verification | NTT R&D Website

Extracting Quantum Power by Using Algorithms and Their Verification quantum computer quantum algorithm

https://www.rd.ntt/e/research/JN202304_21634.html

Wide Bandwidth and High Quality Squeezed Light Source | NTT R&D Website

the wide-bandwidth and high-quality squeezed light generation device and the optical quantum control

https://www.rd.ntt/e/research/DT0025.html

Contents

Contents Frontispiece Carbon Nanotube Interconnection Quantum Computer with Superconductor Imaging

https://www.rd.ntt/e/brl/result/activities/file/report01/E/2001_e.html

Computing Theory Research Group | NTT Communication Science Laboratories | NTT R&D Website

qubits in shallow quantum circuits," Theoretical Computer Science, Vol. 851, pp. 129-153, 2021. Y

https://www.rd.ntt/e/cs/team_project/media/computing_theory/

情報基礎理論研究グループ｜NTTコミュニケーション科学基礎研究所｜NTT R&D Website

Computer Sciences, 2021. Y. Takahashi and S. Tani, "Power of uninitialized qubits in shallow quantum

https://www.rd.ntt/cs/team_project/media/computing_theory/

ISNTT2013 - Invited Speaker - International Symposium on Nanoscale Transport and Technology 2013

. Chow — IBM "Building towards a superconducting fault-tolerant quantum computer" David Cox — NPL

https://www.rd.ntt/brl/event/isntt2013/invited_speakers.html

rd2026-e.pdf

, speech technology, cryptography, and quantum computer technology are prime examples of fields at NTT

https://www.rd.ntt/e/download/rd2026-e.pdf

Dilemma between Quantum Speedup and Computational Reliability-Overcoming Errors with Efficient Verification Methods for Quantum Computing | NTT R&D Website

Verification Methods for Quantum Computing quantum computer cloud quantum computing quantum information

https://www.rd.ntt/e/research/JN202308_22757.html

Toward a Quantum Internet | NTT R&D Website

accomplishing quantum metrology and quantum computer networks as well as quantum communication among arbitrary

https://www.rd.ntt/e/research/JN202304_21666.html

Quantum Neural Network on Cloud｜NTT Basic Research Laboratories | NTT R&D Website

Informatics (NII), and the University of Tokyo will open a Quantum Neural Network (QNN), a new computer

https://www.rd.ntt/e/brl/latesttopics/2017/11/latest_topics_201711201940.html

NTT R&D FORUM 2025 Event Report | NTT R&D Website

developing and realizing the "optical quantum computer" with previously unimaginable scalability of one

https://www.rd.ntt/e/forum/2025/

Improving the Performance of Quantum Key Distribution | NTT R&D Website

optical quantum states. In this article, we introduce our recent activities on QKD using multi-valued

https://www.rd.ntt/e/research/JN202304_21650.html

Think about Your Definition of a Good Idea and Believe in Your Idea｜NTT R&D Website

using light waves is a large-scale, fault-tolerant universal optical quantum computer, which is expected

https://www.rd.ntt/e/research/JN202111_16046.html

Three-dimensional manipulation of electron spin without use of magnetic field｜NTT Basic Research Laboratories | NTT R&D Website

simple way of manipulating quantum information toward the realization of a future quantum computer*2. A

https://www.rd.ntt/e/brl/latesttopics/2013/03/latest_topics_201303180100.html

100,000-spin coherent Ising machine｜NTT Basic Research Laboratories | NTT R&D Website

optimization problems enabled with a large-scale optical computer - Coherent Ising machines (CIMs) are drawing

https://www.rd.ntt/e/brl/latesttopics/2021/09/latest_topics_202109301549.html

G08-04-e.pdf

use of a quantum computer. Besides, it enables us to realize distributed quantum computing, longer

https://www.rd.ntt/forum/2024/doc/G08-04-e.pdf

NTT Basic Research Laboratories Theoretical quantum physics research group / Reseach

quantum technologies such as a quantum computer and a quantum channel. As a result, the quantum internet

https://www.rd.ntt/brl/group_introduction/ryouron-g/research.html

Overview of Quantum Physics and Electronics Research

Overview of Quantum Physics and Electronics Research Overview of Quantum Physics and Electronics

https://www.rd.ntt/e/brl/result/activities/file/report03/E/report11.html

Cluster State Generation for Ultracold Atoms in an Optical Lattice

quantum computer. For this final goal, it is required to establish the high-fidelity entanglement

https://www.rd.ntt/e/brl/result/activities/file/report13/report20E.html

NTTBrl__E_h1

Research Group ●Quantum Optical State Control Research Group ●Theoretical Quantum Physics Research Group

https://www.rd.ntt/e/brl/result/activities/file/annual_report/Annual_report_2017_E.pdf

Invited Talks

", Workshop on Crystal Lattice Quantum Computer, Stanford, U.S.A. (1999, March) N. Kobayashi, "SPA monitoring

https://www.rd.ntt/e/brl/result/activities/file/report98/E/data/shotai.e.html

Updates | NTT R&D Website

Optical-transport-network Technology in Anticipation of the Quantum Computer Era 04/28/2023 Trusted Data

https://www.rd.ntt/e/update_information/

Graphene p-n junction as an electronic beam splitter｜NTT Basic Research Laboratories | NTT R&D Website

such as a spin field effect transistor*3 or a future quantum computer*4. A research paper describing

https://www.rd.ntt/e/brl/latesttopics/2015/09/latest_topics_201509041810.html

Long-distance transport of electron spins for spin-based logic devices｜NTT Basic Research Laboratories | NTT R&D Website

quantum computer*4. A research paper describing these results will appear as an Advance Online Publication

https://www.rd.ntt/e/brl/latesttopics/2016/03/latest_topics_201603082029.html

RECOMMENDED EXHIBITIONS | NTT R&D Website

-scale optical quantum computer, we have developed optical device technologies. We achieved essential

https://www.rd.ntt/e/forum/2024/recommend.html

Applying Optical Oscillator Networks to Diverse Problems as the First Step to Information Processing Systems of the Future | NTT R&D Website

optical oscillator spiking neural network In the field of computer science requiring advanced information

https://www.rd.ntt/e/research/JN202306_22121.html

Microsoft PowerPoint - SP2014_digest_J16_eng.pptx

 considered for building a  quantum computer today, and our research about using Bose‐Einstein  condensates

https://www.rd.ntt/brl/event/sp2014/poster/files/j16.pdf

NTT R&D FORUM 2024 | NTT R&D Website

Computing with Continuous Variables Fig. 1 Demonstration of the optical quantum computer linked between

https://www.rd.ntt/e/forum/2024/

List of Invited Talks at International Conferences (2011)

Optical Quantum Computer", SPIE, San Diego, U.S.A. (Aug. 2011). (9) W.J. Munro, S.J. Devitt, and K. Nemoto

https://www.rd.ntt/e/brl/result/activities/file/report11/data06.html

Quantum Error Mitigation: A Key Approach to Overcoming the Barriers to Practical Application of Quantum Technology | NTT R&D Website

required for meaningful calculations on a quantum computer, correcting errors by quantum error correction

https://www.rd.ntt/e/research/JN202511_37036.html

List of BRL Seminars (Fiscal 2013)

Title May-10 Dr. Rin Okuyama Keio University, Japan Lasing of optical phonons in semiconductor double

https://www.rd.ntt/e/brl/result/activities/file/report13/data03E.html

Developing a Theory for a Quantum Internet for Global Quantum Communication | NTT R&D Website

-optical quantum computer" that realizes quantum computation using only optical devices. Furthermore, it

https://www.rd.ntt/e/research/JN202408_28857.html

論文｜NTT物性科学基礎研究所｜NTT R&D Website

. Yamamoto "Quantum-Nondemolition Measurement Of Optical Solitons" J. Opt. Soc. Am. B-Opt. Phys. 6 (6), 1138

https://www.rd.ntt/brl/result/publications/paper_1989.html

Publications | NTT Basic Research Laboratories | NTT R&D Website

), 3072-3075 (1989). Y. Yamamoto and T. Mukai "Optical Amplifiers" Opt. Quantum Electron.21, R3-R3 (1989

https://www.rd.ntt/e/brl/result/publications/paper_1989.html

国際会議招待講演一覧

", Workshop on Crystal Lattice Quantum Computer, Stanford, U.S.A. (1999, March) N. Kobayashi, "SPA monitoring

https://www.rd.ntt/brl/result/activities/file/report98/J/data/newshotai.html

I Wish to Contribute to the World through Research for the Rest of My Life | NTT R&D Website

using a realistic optical device, we developed the world's-first high-speed quantum random-number

https://www.rd.ntt/e/research/JN202204_17846.html

NTTBrl_honbun_E_250225.indd

, solid-state and optical science, and quantum science, and are continually challenging the limits of

https://www.rd.ntt/brl/result/activities/file/annual_report/NTTBrl_E_250321_print.pdf

List of Visitor's Talks

group III-nitrides" lV. Quantum Optics & Optical Materials May 14 Mr. Motohiro Kumagai Tokyo Institute

https://www.rd.ntt/e/brl/result/activities/file/report99/E/data/seminar.htm

国際会議招待講演一覧（2013年）

. Yamada, "Silicon Photonics for Optical Interconnects and Telecom Applications", 2013 Vail Computer

https://www.rd.ntt/brl/result/activities/file/report13/data11J.html

List of Invited Talks at International Conferences (2013)

Optical Interconnects and Telecom Applications", 2013 Vail Computer Elements Workshop, Denver, U.S.A

https://www.rd.ntt/e/brl/result/activities/file/report13/data10E.html

APN-controller Technology for IOWN Service Provision and Expansion | NTT R&D Website

technology adds an encryption function, which is considered secure even in the quantum-computer age, to the

https://www.rd.ntt/e/research/JN202311_23716.html

国際会議招待講演一覧（2011年）

Optical Quantum Computer", SPIE, San Diego, U.S.A. (Aug. 2011). (9) W.J. Munro, S.J. Devitt, and K. Nemoto

https://www.rd.ntt/brl/result/activities/file/report11/data06.html

Call_for_papers_r3

a superconducting fault-tolerant quantum computer" David Cox — NPL "Fabrication and Verification of

https://www.rd.ntt/brl/event/isntt2013/download/Call_for_papers_r3.pdf

Semiconductor quantum dots with single-atom precision｜NTT Basic Research Laboratories | NTT R&D Website

precise nanostructures*8 will help us to develop a quantum computer and a next-generation technology

https://www.rd.ntt/e/brl/latesttopics/2014/06/latest_topics_201406300201.html

山本 喜久｜NTT R&D Website

a single quantum dot spin using ultrafast optical pulses", Nature 456, 218-221 (November 2008). Z

https://www.rd.ntt/organization/authority/008.html

Workshop on Quantum Physics using Superconducting Artificial Atoms and Nanomechanics

(NII) "Quantum devices and computer architecture for large-scale quantum computation" 17:00 - Banquet

https://www.rd.ntt/brl/event/qpsam/

NTT R&D FORUM 2026 | NTT R&D Website

Computing: Optical Quantum Computer and Optical Neural Network NOV.25 WED 12:30-13:30 Daisuke Shirai NTT

https://www.rd.ntt/e/forum/2026/

Message from Shingo Kinoshita, Senior Vice President, Head of R&D Planning Department, NTT Corporation｜NTT R&D Website

technology, network technology, speech technology, cryptography, and quantum computer technology are prime

https://www.rd.ntt/e/about/message.html

IOWN INTEGRAL | NTT R&D Website

large. In contrast, the quantum computer targeted by NTT uses optical pulses the same as in optical

https://www.rd.ntt/e/forum/2024/keynote_2.html

Call_for_papers_r2

insulators" Jerry M. Chow — IBM "Building towards a superconducting fault-tolerant quantum computer" David

https://www.rd.ntt/brl/event/isntt2013/download/Call_for_papers_r2.pdf

Machine Learning Using an On-chip Photonic Neural Network--Changing the Future through Photonic Technology | NTT R&D Website

of the computer industry come to use the results of this research. Current optical computing makes

https://www.rd.ntt/e/research/JN202406_26663.html

Moving Ising Machines Forward While Taking a Step towards Quantum Networks by Multi-photon Entangled States Based on Time-bin Qubits | NTT R&D Website

exploring the “coherent Ising machine,” a photonic computer that uses a network of optical oscillators to

https://www.rd.ntt/e/research/JN202506_34177.html

Frontier Communication Laboratory | NTT Network Innovation Laboratories | NTT R&D Website

Post-quantum secure transport technology Optical-network digital twin Optical switch network for AI

https://www.rd.ntt/e/mirai/organization/product_2/

Experimental demonstration of quantum memory in diamond｜NTT Basic Research Laboratories | NTT R&D Website

computer and additionally to an interface between the microwave and optical worlds. News & Views http://www

https://www.rd.ntt/e/brl/latesttopics/2011/10/latest_topics_201110130206.html

BRLセミナー講演一覧（2013年度）

optical spin blockade in semiconductor and graphene quantum dots 11月21日 Dr. Neill Lambert 理化学研究所 Non

https://www.rd.ntt/brl/result/activities/file/report13/data03J.html

NTT Laboratories | NTT R&D Website

innovative optical, quantum, and wireless transmission and networking technologies to address the rapid

https://www.rd.ntt/e/organization/laboratory/

Toshikazu Hashimoto | NTT R&D Website

, Optical quantum information processing, Optical quantum computer Related Contents

https://www.rd.ntt/e/organization/researcher/superior/s_028.html

Quantum Information Technology Based on Superconducting Quantum Circuits | NTT R&D Website

applications is the superconducting quantum computer being developed by Google, IBM, University of Science and

https://www.rd.ntt/e/research/JN202304_21572.html

Changing the World through Basic Research on Light Demands a Pioneering Spirit and Results beyond the Ordinary | NTT R&D Website

a large-scale coherent Ising machine (CIM). This is a type of computer used to solve through

https://www.rd.ntt/e/research/JN20180651_h.html

Early Deployment and Popularization of IOWN Technologies as Targeted by IOWN Product Design Center | NTT R&D Website

. With this technology, keys are exchanged in a way that even a quantum computer cannot decipher. Keys

https://www.rd.ntt/e/research/JN202302_20966.html

Have an Open Mind and Don’t Worry about Failure to Stay on the Cutting Edge of Science and Technology｜NTT R&D Website

for a quantum computer to solve a problem (Fig. 1) [1]. Fig. 1. Illustration of the compression of a

https://www.rd.ntt/e/research/JN202108_14845.html

NTTBrl_honbun_E_220301-2.indd

Research Group ●Quantum Optical Physics Research Group ●Photonic Nano-Structure Research Group ●Quantum

https://www.rd.ntt/e/brl/result/activities/file/annual_report/Annual_report_2021_E.pdf

R&D History | NTT R&D Website

Prototype of a new transistor using quantum thin line developed. Successful field test of a new optical

https://www.rd.ntt/e/about/chronicle/

NTT R&D FORUM — Road to IOWN 2021｜Exhibits｜ NTT R&D Website

Smart World and create diverse social value. S01 Secure optical transport network for quantum computer

https://www.rd.ntt/e/forum/2021/exhibits.html

Research Activities in NTT Basic Research Laboratories

network on an array of nanometer-scale Si pillars. (Page 15) Quantum Computer with Superconductor Readout

https://www.rd.ntt/e/brl/result/activities/file/report01/BRLReports_E.pdf

Performance Comparison between Coherent Ising Machines and Quantum Annealer｜NTT R&D Website

Performance Comparison between Coherent Ising Machines and Quantum Annealer｜NTT R&D Website NTT R

https://www.rd.ntt/e/research/JN202103_10945.html

NTTBrl_honbun_E_190306.indd

Research Group ●Quantum Optical State Control Research Group ●Theoretical Quantum Physics Research Group

https://www.rd.ntt/e/brl/result/activities/file/annual_report/Annual_report_2018_E.pdf

List of Exhibitions | NTT R&D Website

Research Sustainability γ07-04The AI era: Optical computer by TFLN Achieve 100x energy efficiency for

https://www.rd.ntt/e/forum/2024/exhibit.html

Publications

optical parametric oscillator network,” Quantum Sci. Technol. 3, 014004 (2018). Y. Yamamoto, K. Aihara, T

https://www.rd.ntt/brl/people/htakesue/papers.html

Book1

transitions of bosonic atoms in an optical lattice -Toward realization of quantum simulation- N18 光ファイバを用いた無損失

https://www.rd.ntt/brl/event/sp2016/poster/files/poster_list.pdf

Quantum Optical State Control Research Group | NTT Basic Research Laboratories | NTT R&D Website

Quantum Optical State Control Research Group | NTT Basic Research Laboratories | NTT R&D Website

https://www.rd.ntt/e/brl/group_introduction/group_009.html

Media Information Laboratory Past news | NTT Communication Science Laboratories | NTT R&D Website

?redirectedFrom=PDF May 2026 The paper entitled “See Your Audio 3D: A Novel Optical Approach for Simultaneous

https://www.rd.ntt/e/cs/team_project/media/past_news.html

NTTBrl_honbun_E_230228_final.indd

Bio Science Research Group ●Nanodevices Research Group ●Nanomechanics Research Group ●Quantum Optical

https://www.rd.ntt/brl/brl/result/activities/file/annual_report/Annual_report_2022_E.pdf

NTTBrl_honbun_E_230228_final.indd

Bio Science Research Group ●Nanodevices Research Group ●Nanomechanics Research Group ●Quantum Optical

https://www.rd.ntt/e/brl/result/activities/file/annual_report/Annual_report_2022_E.pdf

Report on the NTT R&D Forum — Road to IOWN 2022｜NTT R&D Website

communications using encryption technology. In "Secure optical transport network for quantum computer age," we

https://www.rd.ntt/e/forum/2022/

NTTBrl_honbun_E_260302.indd

transistors. In quantum science, we proposed new theories of optical quantum operations and protocols for high

https://www.rd.ntt/brl/result/activities/file/annual_report/NTTBrl_E_260310_print.pdf

Petabit-class Optical Transmission Using Spatial Multiplexing Technology Opens a New Era with a Paradigm Shift | NTT R&D Website

Petabit-class Optical Transmission Using Spatial Multiplexing Technology Opens a New Era with a

https://www.rd.ntt/e/research/JN202302_20974.html

A Long-lived Tunable Qubit for Bosonic Quantum Computing｜NTT R&D Website

element of a quantum computer is a qubit: a two-level system that can be prepared in an arbitrary state |ψ

https://www.rd.ntt/e/research/JN202103_11371.html

Annual_report_2023_E.pdf

Research Group ●Nanomechanics Research Group ●Quantum Optical Physics Research Group ●Photonic Nano

https://www.rd.ntt/brl/brl/result/activities/file/annual_report/Annual_report_2023_E.pdf

Annual_report_2023_E.pdf

Research Group ●Nanomechanics Research Group ●Quantum Optical Physics Research Group ●Photonic Nano

https://www.rd.ntt/e/brl/result/activities/file/annual_report/Annual_report_2023_E.pdf