Nature

A manufacturable platform for photonic quantum computing

K Koen Alexander A Avishai Benyamini D Dylan Black D Damien Bonneau S Stanley Burgos B Ben Burridge H Hugo Cable G Geoff Campbell G Gabriel Catalano A Alejandro Ceballos C Chia-Ming Chang S Sourav Sen Choudhury C C. J. Chung F Fariba Danesh T Tom Dauer M Michael Davis E Eric Dudley P Ping Er-Xuan J Josep Fargas A Alessandro Farsi C Colleen Fenrich J Jonathan Frazer M Masaya Fukami Y Yogeeswaran Ganesan G Gary Gibson M Mercedes Gimeno-Segovia S Sebastian Goeldi P Patrick Goley R Ryan Haislmaier S Sami Halimi P Paul Hansen S Sam Hardy J Jason Horng M Matthew House H Hong Hu M Mehdi Jadidi V Vijay Jain H Henrik Johansson T Thomas Jones V Vimal Kamineni N Nicholas Kelez R Ravi Koustuban G George Kovall P Peter Krogen N Nikhil Kumar Y Yong Liang N Nicholas LiCausi D Dan Llewellyn K Kimberly Lokovic M Michael Lovelady V Vitor Riseti Manfrinato A Ann Melnichuk G Gabriel Mendoza B Brad Moores S Shaunak Mukherjee J Joseph Munns F Francois-Xavier Musalem F Faraz Najafi J Jeremy L. O’Brien J J. Elliott Ortmann S Sunil Pai B Bryan Park H Hsuan-Tung Peng N Nicholas Penthorn B Brennan Peterson G Gabriel Peterson M Matt Poush G Geoff J. Pryde T Tarun Ramprasad G Gareth Ray A Angelita Viejo Rodriguez B Brian Roxworthy T Terry Rudolph D Dylan J. Saunders P Pete Shadbolt D Deesha Shah A Andrea Bahgat Shehata H Hyungki Shin J Jeffrey Sinsky J Jake Smith B Ben Sohn Y Young-Ik Sohn G Gyeongho Son M Mario C. M. M. Souza C Chris Sparrow M Matteo Staffaroni C Camille Stavrakas V Vijay Sukumaran D Davide Tamborini M Mark G. Thompson K Khanh Tran M Mark Triplett M Maryann Tung A Andrzej Veitia A Alexey Vert M Mihai D. Vidrighin I Ilya Vorobeichik P Peter Weigel M Matthew Wingert J Jamie Wooding X Xinran Zhou

Abstract

Abstract Although holding great promise for low noise, ease of operation and networking1, useful photonic quantum computing has been precluded by the need for beyond-state-of-the-art components, manufactured by the millions2–6. Here we introduce a manufacturable platform7 for quantum computing with photons. We benchmark a set of monolithically integrated silicon-photonics-based modules to generate, manipulate, network and detect heralded photonic qubits, demonstrating dual-rail photonic qubits with 99.98% ± 0.01% state preparation and measurement fidelity, Hong–Ou–Mandel (HOM) quantum interference between independent photon sources with 99.50% ± 0.25% visibility, two-qubit fusion with 99.22% ± 0.12% fidelity and a chip-to-chip qubit interconnect with 99.72% ± 0.04% fidelity, conditional on photon detection and not accounting for loss. We preview a selection of next-generation technologies: low-loss silicon nitride (SiN) waveguides and components to address loss, as well as fabrication-tolerant photon sources, high-efficiency photon-number-resolving detectors (PNRDs), low-loss chip-to-fibre coupling and barium titanate (BTO) electro-optic phase shifters for high-performance fast switching.

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Article Details

Journal Nature
Volume / Issue Vol. 641, Issue 8064
Published May 22, 2025
Pages 876-883
ISSN 0028-0836
Publisher Nature Portfolio

Journal Info

Nature

Nature Portfolio
ISSN: 0028-0836 Health Sciences

Authors (101)

K

Koen Alexander

A

Avishai Benyamini

D

Dylan Black

D

Damien Bonneau

S

Stanley Burgos

B

Ben Burridge

H

Hugo Cable

G

Geoff Campbell

G

Gabriel Catalano

A

Alejandro Ceballos

C

Chia-Ming Chang

S

Sourav Sen Choudhury

C

C. J. Chung

F

Fariba Danesh

T

Tom Dauer

M

Michael Davis

E

Eric Dudley

P

Ping Er-Xuan

J

Josep Fargas

A

Alessandro Farsi

C

Colleen Fenrich

J

Jonathan Frazer

M

Masaya Fukami

Y

Yogeeswaran Ganesan

G

Gary Gibson

M

Mercedes Gimeno-Segovia

S

Sebastian Goeldi

P

Patrick Goley

R

Ryan Haislmaier

S

Sami Halimi

P

Paul Hansen

S

Sam Hardy

J

Jason Horng

M

Matthew House

H

Hong Hu

M

Mehdi Jadidi

V

Vijay Jain

H

Henrik Johansson

T

Thomas Jones

V

Vimal Kamineni

N

Nicholas Kelez

R

Ravi Koustuban

G

George Kovall

P

Peter Krogen

N

Nikhil Kumar

Y

Yong Liang

N

Nicholas LiCausi

D

Dan Llewellyn

K

Kimberly Lokovic

M

Michael Lovelady

V

Vitor Riseti Manfrinato

A

Ann Melnichuk

G

Gabriel Mendoza

B

Brad Moores

S

Shaunak Mukherjee

J

Joseph Munns

F

Francois-Xavier Musalem

F

Faraz Najafi

J

Jeremy L. O’Brien

J

J. Elliott Ortmann

S

Sunil Pai

B

Bryan Park

H

Hsuan-Tung Peng

N

Nicholas Penthorn

B

Brennan Peterson

G

Gabriel Peterson

M

Matt Poush

G

Geoff J. Pryde

T

Tarun Ramprasad

G

Gareth Ray

A

Angelita Viejo Rodriguez

B

Brian Roxworthy

T

Terry Rudolph

D

Dylan J. Saunders

P

Pete Shadbolt

D

Deesha Shah

A

Andrea Bahgat Shehata

H

Hyungki Shin

J

Jeffrey Sinsky

J

Jake Smith

B

Ben Sohn

Y

Young-Ik Sohn

G

Gyeongho Son

M

Mario C. M. M. Souza

C

Chris Sparrow

M

Matteo Staffaroni

C

Camille Stavrakas

V

Vijay Sukumaran

D

Davide Tamborini

M

Mark G. Thompson

K

Khanh Tran

M

Mark Triplett

M

Maryann Tung

A

Andrzej Veitia

A

Alexey Vert

M

Mihai D. Vidrighin

I

Ilya Vorobeichik

P

Peter Weigel

M

Matthew Wingert

J

Jamie Wooding

X

Xinran Zhou

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