Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS...
Transcript of Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS...
![Page 1: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/1.jpg)
Dr. Walter G. CopanUnder Secretary of Commerce for Standards and Technology& Director, National Institute of Standards and Technology
Quantum Information Science & NISTAdvancing QIS Technologies for Economic Impact
SUNY
July 10, 2019
![Page 2: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/2.jpg)
A New Era of Quantum Everything
• Measurement units: SI• Sensing• Communications• Clocks• Simulation• Encryption• Engineering• Computing
• A metrologist’s dream!First fully programmable and reconfigurable quantum
computer module, 2016, Joint Quantum Institute (partnership of NIST and UMD)
Cre
dit
: S. D
ebn
ath
an
d E
. Ed
war
ds/
JQI
2
![Page 3: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/3.jpg)
Inside the High Stakes Race to MakeQuantum Computers Work
The Next Tech Talent Shortage, Quantum Computer Researchers
Why Quantum Computers will be Super Awesome, Someday
The Day When Computers Can Break All Encryption is Coming
Business Bets on a Quantum Leap
Why Quantum Now?
1900’s
Understanding quantum science leads to lasers, transistors, semiconductors
Control and measurement of quantum states: creating powerful new technologies
Today
In today’s landscape, quantum science is essential to our national security and economic health
3
![Page 4: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/4.jpg)
Industry Sectors Likely to Benefit
4
![Page 5: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/5.jpg)
From Multinationals to Startups
A sampling of companies investing in how to exploit the potential of QIS
5
![Page 6: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/6.jpg)
How Big is Quantum Info Science?
Institute for Defense Analysis Boston Consulting Group
• Report: Initially small markets ($50 million to $500 million) for early commercial quantum applications including sensing & metrology.
• U.S. listed as the leader worldwide in this report. Notably, since 2017, China has overtaken the U.S. in patents and publications in the field.
• Private funding: $700 million in investments since 2012, center of international hub is U.S.
• Announced Public Funding QIS: China, $10B; US, $1.25B; EU, $1.1B, UK, $381M
• Possible $50B market for quantum computing by 2030.
https://www.ida.org//media/feature/publications/a/as/assessment-of-the-future-economic-impact-of-quantum-information-science/p-8567.ashx
https://www.bcg.com/en-us/publications/2018/next-decade-quantum-computing-how-play.aspx
6
![Page 7: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/7.jpg)
White House Roundtable & NQIP
ho
to: W
H O
ffic
e o
f Sc
ien
ce a
nd
Tec
hn
olo
gy P
olic
y
White House quantum roundtable with ~ 100 academic, industry and government leadersMay 2019
• Assuring U.S. Quantum leadership has bipartisan support
• Focus: collaboration, funding, workforce, market applications
National Quantum Initiative signed by President Trump Dec. 2018, $1.25 billion
7
![Page 8: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/8.jpg)
Building a Quantum Workforce
• White House Roundtable participants included NIST Joint Institute academic partners in QIS • JILA: University of Colorado –
Boulder• JQI / QuICS: University of
Maryland
• NIST / SRI Quantum Economic Development Consortium
NIST Director Walter Copan with former NIST Director Willie May (r), Morgan State University: Preparing the future quantum workforce
8
![Page 9: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/9.jpg)
NIST/SRI QED Consortium
• QEDC: Quantum Economic Development Consortium – 60+ corporate members
• Support enabling technology R&D and enhance the quantum ecosystem
• Foster industry/government collaboration
• Fill gaps in research or infrastructure
• Highlight use cases and grand challenges
• Foster access to intellectual property, supply chains, tech forecasting, quantum literacy
9
![Page 10: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/10.jpg)
NIST, a Long History in Quantum
NIST’s work in atomic clocks led the way for quantum information science
• 1994 – NIST hosts first ever quantum information workshop
• 2006 – Joint Quantum Institute established with Univ. of Maryland
• 2012 – NIST’s Dave Wineland shares Nobel Prize in Physics for quantum computing achievements
• 2014 – Joint Center for Quantum Information in Computer Science established with UMD
• 3 other related Nobel Prizes for NIST researchers, 1997 William Phillips (laser cooling), 2001 Eric Cornell (Bose Einstein Condensates) and 2005 Jan Hall (laser frequency comb)
NIST Nobel Laureate Dave Wineland and his research group in 1996
![Page 11: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/11.jpg)
Extending Quantum Capabilities
11
![Page 12: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/12.jpg)
Measurement Science, Standards & Technology
Measurements essential to commerce, trade, and innovation
Federal role established in the U.S. Constitution
![Page 13: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/13.jpg)
NIST Mission
To promote U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve our quality of life.
World-Leading Scientific and Engineering Research
Advanced Manufacturing National Programs
Technology Transfer and Innovation 13
![Page 14: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/14.jpg)
2 CAMPUSESGAITHERSBURG, MD [HQ] BOULDER, CO
3,600+ ASSOCIATES
12 COLLABORATIVE INSTITUTES
5 NOBEL PRIZES
Thousandsof BUSINESSES USING NIST FACILITIES
3,400+ FEDERALEMPLOYEES
NIST at a GLANCEIndustry’s National Lab
NATIONAL OFFICE COORDINATING 15 MANUFACTURING INSTITUTES
51 MANUFACTURING EXTENSION PARTNERSHIP CENTERS
U.S. BALDRIGE PERFORMANCE EXCELLENCE PROGRAM
![Page 15: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/15.jpg)
Programmatic Priorities
Advanced Manufacturing
Cybersecurity & Privacy
Disaster Resilience
Documentary Standards
Technology Transfer
Engineering Biology
Internet of Things
Quantum Science
Artificial Intelligence
© M
att
DeL
orm
e
Measurement Dissemination
15
![Page 16: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/16.jpg)
The Quantum SI
SI Logo © BIPM, used with permissionhttps://www.bipm.org/en/measurement-units/rev-si/
• Redefine the:– kilogram
– ampere
– kelvin
– mole
• Determined through best experiment,then fixing the values of:
– Planck constant
– Elementary electric charge (of electron)
– Boltzmann constant
– Avogadro constant
16
![Page 17: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/17.jpg)
Redefinition of the Kilogram
Le Grand KThe artifact kilogram The Kibble Balance
The electronic kilogram (The NIST-4 Watt Balance)17
![Page 18: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/18.jpg)
Success! Redefinition of SI Units
• A global achievement!
• Most significant change to the SI Units in >130 years
• Unanimous agreement –Treaty of the Metre, CGPM Versailles, November 2018
• All key measurement units defined by natural constants.
• Effective date:
May 20, 2019
18
![Page 19: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/19.jpg)
Metrology Enables Innovation
NIST Atomic Clock Technology Enabling
• GPS Navigation• Telecommunications• Synchronized Smart
Infrastructure (Power Grids)
• Secure Financial Transactions
Photo credit (far left) © Geoffrey Wheeler
19
![Page 20: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/20.jpg)
Why NIST?
NIST has a world-leading capability and reputation in quantum
Excellence in quantum is critical to NIST’s metrology mission
Quantum supremacy impossible without leading-edge measurements
Credit: J. Consoli, University of Maryland
20
![Page 21: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/21.jpg)
Quantum Science as Strategic Priority
Critical to metrology
Critical to national security
Requires unique U.S. capabilities
![Page 22: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/22.jpg)
Quantum Across NIST
Laboratories across NIST are leading and preparing for the second quantum revolution through basic research, applied research and engineering, and measurement mission delivery.
Quantum-Based Random Number
Generator
Post-Quantum Cryptography
Quantum photonics Stable Atomic Clocks
©Geoffrey Wheeler
Quantum Simulators
22
![Page 23: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/23.jpg)
NIST Quantum Science Strategic Vision
Quantum SIQuantum
Engineering
Foundational Quantum Metrology
NIST will accelerate the application of quantum information science,leverage advances in quantum technology for standards andmeasurements, and provide U.S. leadership in fundamental research intoquantum phenomena to establish the foundation for the future quantuminfrastructure of the U.S.
![Page 24: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/24.jpg)
• Uses optical properties of materials to measure changes in temperature
• Smaller than a coffee bean
• Vapor cell on a chip contains rubidium atoms
• Frequency-comb enabled
Next-Generation Chip-Scale Atomic Clock
Chip-Scale Photonic Thermometer
24
The Next Generation of Measurement
Optical Frequency Comb
![Page 25: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/25.jpg)
Recent Results: Ytterbium Timekeeper
The leading edge of atomic clock performance:
• Uncertainty – 1.4 parts in 1018
• Stability – 3.2 parts in 109
• Reproducibility – two clocks match in frequency with better than one billionth of billionth
• Ytterbium atom, which “ticks” at higher optical frequencies is a candidate to replace the current SI timekeeper, cesium, which “ticks” at lower microwave frequencies
NIS
T/J.
Bu
rru
s
25
![Page 26: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/26.jpg)
JILA: Coldest Quantum Gas
Science cover feature: Feb. 22, 2019
• Created degenerate Fermi gas of molecules containing potassium and rubidium held just above absolute zero
• 100,000 molecules at 250 nK and as many as 25,000 molecules at 50 nK
• Molecules last for seconds
• Chemical reactions are suppressed
• New methods expected to aid control of qubits St
eve
Bu
rro
ws/
JILA
![Page 27: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/27.jpg)
Reversible Quantum Squeezing
https://www.nist.gov/news-events/news/2019/06/nist-team-supersizes-quantum-squeezing-measure-ultrasmall-motion
Improving Measurement of Ultrasmall Motions
• 7X more precise than previous methods
• A single magnesium is manipulated in an ion trap made with sapphire base and gold electrodes
• Boost sensitivity in quantum sensors & speed up process for quantum entanglement
27
![Page 28: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/28.jpg)
3D Lattice Strontium Atomic Clock
Images showing variations in atom numbers (1 to 5 atoms) and density in different lattice cells of JILA’s strontium lattice atomic clock.
• Interacting particle effects are key to quantum applications
• Observed shifts in clock frequency arising from multi-particle interactions when 3 or more atoms occupy a single cell.
Go
ba
n, Y
e g
rou
p/J
ILA
• New image technique measures the atoms’ quantum state
• Technique can help ensure one atom per lattice site or to enhance entanglement by packing 3+ atoms per lattice site
28
![Page 29: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/29.jpg)
Portable Quantum Pressure Sensor
At the heart of a new NIST portable pressure sensor is a dual cavity for laser measurements that is only 2.5 cm long.
Advancing Pressure Sensing Collaboration with MKS Instruments
• NIST Portable Fixed-Length Optical Cavity (FLOC), device that measures pressure more accurately and precisely than most commercial sensors, advanced with commercial partner
• Applications likely in chip manufacturing and aerospace, industries that depend on accurate pressure measurements
• Works by measuring differences of laser light frequency in vacuum compared to test channel filled with a gas at pressure
Cre
dit
: MK
S In
stru
men
ts, I
nc.
29
![Page 30: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/30.jpg)
JQI Startup IonQ’s latest news
“The real problem in the field is that we don’t know the killer app of quantum computers yet,” said Chris Monroe, IonQ’s co-founder and chief executive and a physics professor at the University of Maryland. “We have to build them and find out where they will resonate.”
“Perhaps the best quantum computer yet.”
• IonQs approach uses 79 fully connected ion qubits
• Significantly better error rates than some other approaches
• IonQ reported that it ran an Bernstein-Vazirani algorithm that relied on 11 of the qubits. The system returned the expected value 73 percent of the time
• IonQ says it will invite other experts to a private beta test of its systems
30
![Page 31: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/31.jpg)
Post Quantum Cryptographic Standards
Algorithms Advancing to the Post-Quantum Crypto ‘Semifinals’
Phase of evaluation and review now in progress, will last 12-18 months
26
2nd
31
![Page 32: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/32.jpg)
NIST-on-a-Chip
…that are self-calibrating, fit-to-function, manufacturable
A suite of quantum-based measurement technologies
…taking measurement services out of the lab and directly to the end user
1
2
3
32
![Page 33: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/33.jpg)
Chip-Scale DevicesResistanceGraphene Quantum Hall Resistor
VoltageAC and DC Josephson Junction Arrays
VacuumUHV and XHV
2 mm
2 µm
500 nm
Temperature Photonic Thermometer
Mass and ForceFlexure microbalance
RadiometersOptical-Fiber Power
Smart MirrorLaser, RF, & µwave Power
33
![Page 34: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/34.jpg)
Example: Quantum Optics & Radiometry
Project: Photonic Power Metrology
34
Gen I - RPPM
Gen IIISmart Mirror
Gen IIBeam Box
![Page 35: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/35.jpg)
Goal:
Unleashing American
Innovation
ROI Final Green Paper
• Green Paper published April 24, 2019 as NIST Special
Publication 1234
• 15 key findings to inform actions to modernize U.S.
technology transfer legislation, policy and practice
35
![Page 36: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/36.jpg)
36
Measure. Innovate. Lead.
![Page 37: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/37.jpg)
Questions?
37
![Page 38: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/38.jpg)
Thank you!
@usnistgovwww.NIST.gov
![Page 39: Quantum Information Science & NIST - SUNY · Quantum Information Science & NIST Advancing QIS Technologies for Economic Impact ... investments since 2012, center of ... First Portable](https://reader033.fdocuments.in/reader033/viewer/2022060312/5f0b20347e708231d42ef9b2/html5/thumbnails/39.jpg)
References: NIST Recent Achievements
FLOC Takes Flight: First Portable Prototype of Photonic Pressure SensorFEBRUARY 25, 2019
JILA Researchers Make Coldest Quantum Gas of MoleculesFEBRUARY 21, 2019
JILA Researchers See Signs of Interactive Form of Quantum MatterOctober 31, 2018 (Many body physics story)
Also: National Quantum Coordination Officehttps://www.fedscoop.com/white-house-launches-national-quantum-coordination-office/
Not directly NIST-related, but Chris Monroe’s startup made advances in quantum computing late last year:https://gizmodo.com/this-could-be-the-best-quantum-computer-yet-1831085617