"Low-loss polarization control in fiber systems for quantum computation"

2023

"Low-loss polarization control in fiber systems for quantum computation"

"High-threshold fault-tolerant quantum computation with the Gottesman-Kitaev-Preskill qubit under noise in an optical setup"

"Over-8-dB squeezed light generation by a broadband waveguide optical parametric amplifier toward fault-tolerant ultra-fast quantum computers"

"Non-Gaussian quantum state generation by multi-photon subtraction at the telecommunication wavelength"

"Switching-free time-domain optical quantum computation with quantum teleportation"

"Toward a multi-core ultra-fast optical quantum processor: 43-GHz bandwidth real-time amplitude measurement of 5-dB squeezed light using modularized optical parametric amplifier with 5G technology"

"First-step experiment in developing optical-spring quantum locking for DECIGO: sensitivity optimization for simulated quantum noise by completing the square"

Phys. Rev. D 107, 022007 (2023)

2022

"Timing jitter removers of photon detectors"

"Gaussian breeding for encoding a qubit in propagating light"

"Protecting the quantum interference of cat states by phase-space compression"

"All-optical quantum computing using cubic phase gates"

"Nonlinear feedforward enabling quantum computation"

"Quantum arbitrary waveform generator"

"Generation of highly pure single-photon state at telecommunication wavelength"

"X-Band photonic microwaves with phase noise below −180 dBc/Hz using a free-running monolithic comb"

"Analysis of optical quantum state preparation using photon detectors in the finite-temporal-resolution regime"

"Generation of Schrödinger cat states with Wigner negativity using continuous-wave low-loss waveguide optical parametric amplifier"

"Generating Gottesman-Kitaev-Preskill qubit using a cross-Kerr interaction between a squeezed light and Fock states in optics"

"Building a large-scale quantum computer with continuous-variable optical technologies"

"Efficient backcasting search for optical quantum state synthesis"

2021

"Fabrication of low-loss quasi-single-mode PPLN waveguide and its application to a modularized broadband high-level squeezer"

"Time-domain-multiplexed measurement-based quantum operations with 25-MHz clock frequency"

"All-Optical Long-Distance Quantum Communication with Gottesman-Kitaev-Preskill qubits"

"Reduction of quantum noise using the quantum locking with an optical spring for gravitational wave detectors"

"Non-Clifford gate on optical qubits by nonlinear feedforward"

"Quantum detector tomography of a superconducting nanostrip photon-number-resolving detector"

"Estimation of Gaussian random displacement using non-Gaussian states"

"Wave-function engineering via conditional quantum teleportation with a non-Gaussian entanglement resource"

"An efficient, concatenated, bosonic code for additive Gaussian noise"

"Nonlinear squeezing for measurement-based non-Gaussian operations in time domain"

"Generation of optical Schrödinger cat states by generalized photon subtraction"

2020

"Phase locking between two all-optical quantum memories"

"All-optical phase-sensitive detection for ultra-fast quantum computation"

"Optimization of quantum noise by completing the square of multiple interferometer outputs in quantum locking for gravitational wave detectors"

"A Quantum Computer Architecture Based on Silicon Donor Qubits Coupled by Photons"

"Temporal-mode continuous-variable three-dimensional cluster state for topologically protected measurement-based quantum computation"

"Continuous-wave 6-dB-squeezed light with 2.5-THz-bandwidth from single-mode PPLN waveguide"

"4-dB quadrature squeezing with fiber-coupled PPLN ridge waveguide module"

"Extending the piezoelectric transducer bandwidth of an optical interferometer by suppressing resonance using a high dimensional IIR filter implemented on an FPGA"

"Feasibility study of a coherent feedback squeezer"

2019

"Wide-field SU(1,1) interferometer"

"Generation and measurement of a squeezed vacuum up to 100 MHz at 1550 nm with a semi-monolithic optical parametric oscillator designed towards direct coupling with waveguide modules"

"Toward large-scale fault-tolerant universal photonic quantum computing"

"Generation of time-domain-multiplexed two-dimensional cluster state"

"Complete temporal mode characterization of non-Gaussian states by dual homodyne measurement"

"On-demand photonic entanglement synthesizer"

"All-optical storage of phase-sensitive quantum states of light"

2018

"Excess loss in homodyne detection originating from distributed photocarrier generation in photodiodes"

"Generation of a cat state in an optical sideband"

"500 MHz resonant photodetector for high-quantum-effciency, low-noise homodyne measurement"

"Quantum nondemolition gate operations and measurements in real time on fluctuating signals"

"Universal quantum computation with temporal-mode bilayer square lattices”

"Heralded creation of photonic qudits from parametric down-conversion using linear optics”

"Quantum information processing with a travelling wave of light"

"General implementation of arbitrary nonlinear quadrature phase gates"

2017

"Optical hybrid quantum teleportation and its applications"

"Generation of highly pure Schrodinger's cat states and real-time quadrature measurements via optical filtering"

"Purification of photon subtraction from continuous squeezed light by filtering"

"Universal quantum computing with measurement-induced continuous-variable gate sequence in a loop-based architecture"

"Perspective on hybrid quantum information processing: A way for large-scale quantum information processing"

"Continuous-variable quantum optical experiments in the time domain using squeezed states and heralded non-Gaussian states"

"Direct observation of phase sensitive Hong-Ou-Mandel interference"

2016

"Mitigation of radiation-pressure-induced angular instability of a Fabry-Perot cavity consisting of suspended mirrors"

"Creation and measurement of broadband squeezed vacuum from a ring optical parametric oscillator"

"Generation of one-million-mode continuous-variable cluster state by unlimited time-domain multiplexing"

"Observation of reduction of radiation-pressure-induced rotational anti-spring effect on a 23 mg mirror in a Fabry-Perot cavity"

"Spectrum analysis with quantum dynamical systems"

"Synchronization of optical photons for quantum information processing"

"Implementation of a quantum cubic gate by adaptive non-Gaussian measurement"

"Real-time quadrature measurement of a single-photon wave packet with continuous temporal-mode matching"

"On-Demand Release of a Heralded Quantum State from Concatenated Optical Cavities” in “Engineering the Atom-Photon Interaction”

"New method to measure the angular antispring effect in a Fabry-Perot cavity with remote excitation using radiation pressure"

"Optical hybrid quantum information processing"

in "Physics in Quantum Information Processing" Y. Yamamoto and K. Semba eds. Springer (2016)

2015

"On-chip continuous-variable quantum entanglement"

"Advances in Quantum Teleportation"

"Analog of the Clauser-Horne-Shimony-Holt inequality for steering"

"Continuous-variable entanglement on a chip"

"Experimental proof of nonlocal wavefunction collapse for a single particle using homodyne measurements"

"Entanglement swapping between discrete and continuous variables"

"Demonstration of a fully tunable entangling gate for continuous-variable one-way quantum computation"

"Hybrid discrete- and continuous-variable quantum information"

2014

"Noiseless conditional teleportation of a single photon"

"Experimental realization of a dynamic squeezing gate"

"Nonlocal quantum gate on quantum continuous variables with minimal resources"

"Exploring a new regime for processing optical qubits: Squeezing and unsqueezing single photons"

2013

"Creation, storage, and on-demand release of optical quantum states with a negative Wigner function"

"Gain tuning for continuous-variable quantum teleportation of discrete-variable states"

"Deterministic quantum teleportation of photonic quantum bits by a hybrid technique"

"Ultra-Large-Scale continuous-variable cluster states multiplexed in the time domain"

"Emulating quantum cubic nonlinearity"

"Quantum-limited mirror-motion estimation"

"Generating superposition of up-to three photons for continuous variable quantum information processing"

"Generation and eight-port homodyne characterization of time-bin qubits for continuous-variable quantum information processing"

2012

"Quantum-enhanced optical-phase tracking"

"Quantum mode filtering of non-Gaussian states for teleportation-based quantum information processing"

Phys. Rev. A 85, 053824 (2012).

Research Highlights: S. C. Armstrong, Nature Photonics 6, 500 (2012)"Experimental demonstration of coherent feedback control on optical field squeezing"

2011

"Demonstration of a controlled-phase gate for continuous-variable one-way quantum computation"

"Optical homodyne tomography with polynomial series expansion"

"Deterministic implementation of weak quantum cubic nonlinearity"

"Quantum teleportation and entanglement: A hybrid approach to optical quantum information processing"

"Quantum teleportation of non-classical wave-packets, an effective multimode theory"

"Teleportation of non-classical wave-packets of light"

"Demonstration of a reversible phase-insensitive optical amplifier"

"Demonstration of unconditional one-way quantum computations for continuous variables"

2010

"Continuous-variable teleportation of a negative Wigner function"

"Generation of squeezed light with a monolithic optical parametric oscillator: Simultaneous achievement of phase matching and cavity resonance by temperature control"

"Reversing Quantum Nondemolition Interaction as Quantum Erasing"

"Demonstration of cluster state shaping and quantum erasure for continuous variables"

Phys. Rev. A 82, 032305 (2010)."Efficient generation of highly squeezed light and second harmonic wave with periodically poled MgO:LiNbO_3"

"Adaptive optical phase estimation using time-symmetric quantum smoothing"

"Universal linear Bogoliubov transformations through one-way quantum computation"

"Entanglement distillation from Gaussian input states"

"Quantum memory of a squeezed vacuum for arbitrary frequency sidebands"

"Continuous-variable quantum information processing with squeezed states of light"

2009

"Photonic quantum technologies"

"Demonstration of a universal one-way quantum quadratic phase gate"

"Quantum error correction beyond qubits"

2008

"Demonstration of a quantum nondemolition sum gate"

"Generation of large-amplitude coherent-state superposition via ancilla-assisted photon-subtraction"

"Experimental generation of four-mode continuous-variable cluster states"

"High-fidelity continuous-variable quantum teleportation toward multi-step quantum operations"

"Storage and retrieval of a squeezed vacuum"

2007

"Observation of electromagnetically induced transparency for a squeezed vacuum with the time domain method"

"Experimental demonstration of quantum teleportation of broadband squeezing"

"Sequential quantum teleportation of optical coherent states"

"Quantum teleportation for continuous variables and related quantum information processing"

"Experimental demonstration of macroscopic quantum coherence in Gaussian states"

"Observation of -9 dB quadrature squeezing with improvement of phase stability in homodyne measurement"

"Demonstration of deterministic and high fidelity squeezing of quantum information"

"Ultraslow propagation of squeezed vacuum pulses with electromagnetically induced transparency"

"Photon subtracted squeezed states generated with periodically poled KTiOPO_4"

"Generation of continuous-wave broadband entangled beams using periodically-poled lithium niobate waveguides"

"High-fidelity quantum teleportation and a quantum teleportation network"

in "Quantum Information with Continuous Variables of Atoms and Light", N. Cerf, G. Leuchs, and E. S. Polzik eds. (Imperial College Press) (2007).

2006

"Time-gated Einstein-Podolsky-Rosen correlation"

"Generation of a squeezed vacuum resonant on Rubidium D_1 line with periodically-poled KTiOPO_4"

Opt. Lett. 31, 2344-2346 (2006).

"7 dB quadrature squeezing at 860 nm with periodically-poled KTiOPO_4"

"Squeezing at 946nm with periodically-poled KTiOPO_4"

"Demonstration of quantum telecloning of optical coherent states"

2005

"High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables"

"Experimental demonstration of entanglement assisted coding using a two-mode squeezed vacuum state"

"Experimental demonstration of quantum teleportation of a squeezed state"

2004

"Demonstration of a quantum teleportation network for continuous variables"

2003

"Experimental creation of a fully inseparable tripartite continuous-variable state"

"Detecting genuine multipartite continuous-variable entanglement"

2002

"Gain tuning and fidelity in continuous-variable quantum teleportation"

"Continuous variable teleportation of single photon states"

Before 2001

"Information losses in continuous-variable quantum teleportation"

"Fidelity and information in the quantum teleportation of continuous variables"

"Nonclassical correlations of photon number and field components in the vacuum state"

"Unconditional quantum teleportation"