The quest to build the ultimate computer has taken a big step forward following breakthroughs in ensuring its answers can be trusted.
Known as a quantum computer, such a machine exploits bizarre effects in the sub-atomic world to perform calculations beyond the reach of conventional computers.
First proposed almost 40 years ago, tech giants Microsoft, Google and IBM are among those racing to exploit the power of quantum computing, which is expected to transform fields ranging from weather forecasting and drug design to artificial intelligence.
The power of quantum computers comes from their use of so-called qubits, the quantum equivalent of the 1s and 0s – “bits” – used by conventional number-crunchers.
Unlike bits, qubits exploit a quantum effect allowing them to be both 1s and 0s at the same time. The impact on processing power is astonishing. Instead of processing, say, 100 bits in one go, a quantum computer could crunch 100 qubits, equivalent to 2 to the power 100, or a million trillion trillion bits.
At least, that is the theory. The problem is that the property of qubits that gives them their abilities – known as quantum superposition – is very unstable.
Once created, even the slightest vibration, temperature shift or electromagnetic signal can disturb the qubits, causing errors in calculations. Unless the superposition can be maintained long enough, the quantum computer either does a few calculations well or a vast amount badly.
For years, the biggest achievement of any quantum computer involved using a few qubits to find the prime factors of 15 (which every schoolchild knows are 3 and 5).
Using complex shielding methods, researchers can now stabilise around 50 qubits long enough to perform impressive calculations.
Last October, Google claimed to have built a quantum computer that solved in 200 seconds a maths problem that would have taken an ultra-fast conventional computer more than 10,000 years.
Yet even this billion-fold speed-up is just a shadow of what would be possible if qubits could be kept stable for longer. At present, many of the qubits have their powers wasted being used to spot and fix errors.
Now two teams of researchers have independently found new ways of tackling the error problem.
Physicists at the University of Chicago have found a way of keeping qubits stable for longer not by blocking disturbances, but by blurring them.
It is like sitting on a merry-go-round with people yelling all around you
In some quantum computers, the qubits take the form of electrons whose direction of spin is a superposition of both up and down. By adding a constantly flipping magnetic field, the team found that the electrons rotated so quickly that they barely noticed outside disturbances. The researchers explain the trick with an analogy: “It's like sitting on a merry-go-round with people yelling all around you,” says team member Dr Kevin Miao. “When the ride is still, you can hear them perfectly, but if you're rapidly spinning, the noise blurs into a background.”
Describing their work in the journal Science, the team reported keeping the qubits working for about 1/50th of a second - around 10,000 times longer than their lifetime if left unshielded. According to the team, the technique is simple to use but effective against all the standard sources of disturbance. Meanwhile, researchers at the University of Sydney have come up with an algorithm that allows a quantum computer to work out how its qubits are being affected by disturbances and fix the resulting errors. Reporting their discovery in Nature Physics, the team says their method is ready for use with current quantum computers, and could work with up to 100 qubits.
These breakthroughs come at a key moment for quantum computing. Even without them, the technology is already spreading beyond research laboratories.
In June, the title of world’s most powerful quantum computer was claimed not by a tech giant but by Honeywell – a company perhaps best known for central heating thermostats.
Needless to say, the claim is contested by some, not least because the machine is reported to have only six qubits. But Honeywell points out that it has focused its research on making those qubits ultra-stable – which allows them to work reliably for far longer than rival systems. Numbers of qubits alone, in other words, are not everything.
And the company insists this is just the start. It plans to boost the performance of its quantum computer ten-fold each year for the next five years, making it 100,000 times more powerful still.
But apart from bragging rights, why is a company like Honeywell trying to take on the tech giants in the race for the ultimate computer ?
A key clue can be found in remarks made by Honeywell insiders to Forbes magazine earlier this month. These reveal that the company wants to use quantum computers to discover new kinds of materials.
Doing this involves working out how different molecules interact together to form materials with the right properties. That’s something conventional computers are already used for. But quantum computers won’t just bring extra number-crunching power to bear. Crucially, like molecules themselves, their behaviour reflects the bizarre laws of quantum theory. And this makes them ideal for creating accurate simulations of quantum phenomena – like the creation of new materials.
This often-overlooked feature of quantum computers was, in fact, the original motivation of the brilliant American physicist Richard Feynman, who first proposed their development in 1981.
Honeywell already has plans to use quantum computers to identify better refrigerants. These compounds were once notorious for attacking the Earth’s ozone layer, but replacements still have unwanted environmental effects. Being relatively simple chemicals, the search for better refrigerants is already within the reach of current quantum computers.
But Honeywell sees a time when far more complex molecules such as drugs will also be discovered using the technology.
For the time being, no quantum computer can match the all-round number-crunching power of standard computers. Just as Honeywell made its claim, the Japanese computer maker Fujitsu unveiled a supercomputer capable of over 500 million billion calculations a second.
Even so, the quantum computer is now a reality – and before long it will make even the fastest supercomputer seem like an abacus.
Robert Matthews is Visiting Professor of Science at Aston University, Birmingham, UK
A timeline of the Historical Dictionary of the Arabic Language
- 2018: Formal work begins
- November 2021: First 17 volumes launched
- November 2022: Additional 19 volumes released
- October 2023: Another 31 volumes released
- November 2024: All 127 volumes completed
Match info
Uefa Champions League Group B
Tottenham Hotspur 1 (Eriksen 80')
Inter Milan 0
Step by step
2070km to run
38 days
273,600 calories consumed
28kg of fruit
40kg of vegetables
45 pairs of running shoes
1 yoga matt
1 oxygen chamber
GAC GS8 Specs
Engine: 2.0-litre 4cyl turbo
Power: 248hp at 5,200rpm
Torque: 400Nm at 1,750-4,000rpm
Transmission: 8-speed auto
Fuel consumption: 9.1L/100km
On sale: Now
Price: From Dh149,900
COMPANY PROFILE
Name: Qyubic
Started: October 2023
Founder: Namrata Raina
Based: Dubai
Sector: E-commerce
Current number of staff: 10
Investment stage: Pre-seed
Initial investment: Undisclosed
LEADERBOARD
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Student Of The Year 2
Director: Punit Malhotra
Stars: Tiger Shroff, Tara Sutaria, Ananya Pandey, Aditya Seal
1.5 stars
ONCE UPON A TIME IN GAZA
Starring: Nader Abd Alhay, Majd Eid, Ramzi Maqdisi
Directors: Tarzan and Arab Nasser
Rating: 4.5/5
Company: Instabug
Founded: 2013
Based: Egypt, Cairo
Sector: IT
Employees: 100
Stage: Series A
Investors: Flat6Labs, Accel, Y Combinator and angel investors
Where to buy art books in the UAE
There are a number of speciality art bookshops in the UAE.
In Dubai, The Lighthouse at Dubai Design District has a wonderfully curated selection of art and design books. Alserkal Avenue runs a pop-up shop at their A4 space, and host the art-book fair Fully Booked during Art Week in March. The Third Line, also in Alserkal Avenue, has a strong book-publishing arm and sells copies at its gallery. Kinokuniya, at Dubai Mall, has some good offerings within its broad selection, and you never know what you will find at the House of Prose in Jumeirah. Finally, all of Gulf Photo Plus’s photo books are available for sale at their show.
In Abu Dhabi, Louvre Abu Dhabi has a beautiful selection of catalogues and art books, and Magrudy’s – across the Emirates, but particularly at their NYU Abu Dhabi site – has a great selection in art, fiction and cultural theory.
In Sharjah, the Sharjah Art Museum sells catalogues and art books at its museum shop, and the Sharjah Art Foundation has a bookshop that offers reads on art, theory and cultural history.
Intercontinental Cup
Namibia v UAE Saturday Sep 16-Tuesday Sep 19
Table 1 Ireland, 89 points; 2 Afghanistan, 81; 3 Netherlands, 52; 4 Papua New Guinea, 40; 5 Hong Kong, 39; 6 Scotland, 37; 7 UAE, 27; 8 Namibia, 27
The%20specs%20
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if you go
The flights
Emirates have direct flights from Dubai to Glasgow from Dh3,115. Alternatively, if you want to see a bit of Edinburgh first, then you can fly there direct with Etihad from Abu Dhabi.
The hotel
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Located in the heart of Mackintosh's Glasgow, the Dakota Deluxe is perhaps the most refined hotel anywhere in the city. Doubles from Dh850
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Events and tours
There are various Mackintosh specific events throughout 2018 – for more details and to see a map of his surviving designs see glasgowmackintosh.com
For walking tours focussing on the Glasgow Style, see the website of the Glasgow School of Art.
More information
For ideas on planning a trip to Scotland, visit www.visitscotland.com
Mercer, the investment consulting arm of US services company Marsh & McLennan, expects its wealth division to at least double its assets under management (AUM) in the Middle East as wealth in the region continues to grow despite economic headwinds, a company official said.
Mercer Wealth, which globally has $160 billion in AUM, plans to boost its AUM in the region to $2-$3bn in the next 2-3 years from the present $1bn, said Yasir AbuShaban, a Dubai-based principal with Mercer Wealth.
“Within the next two to three years, we are looking at reaching $2 to $3 billion as a conservative estimate and we do see an opportunity to do so,” said Mr AbuShaban.
Mercer does not directly make investments, but allocates clients’ money they have discretion to, to professional asset managers. They also provide advice to clients.
“We have buying power. We can negotiate on their (client’s) behalf with asset managers to provide them lower fees than they otherwise would have to get on their own,” he added.
Mercer Wealth’s clients include sovereign wealth funds, family offices, and insurance companies among others.
From its office in Dubai, Mercer also looks after Africa, India and Turkey, where they also see opportunity for growth.
Wealth creation in Middle East and Africa (MEA) grew 8.5 per cent to $8.1 trillion last year from $7.5tn in 2015, higher than last year’s global average of 6 per cent and the second-highest growth in a region after Asia-Pacific which grew 9.9 per cent, according to consultancy Boston Consulting Group (BCG). In the region, where wealth grew just 1.9 per cent in 2015 compared with 2014, a pickup in oil prices has helped in wealth generation.
BCG is forecasting MEA wealth will rise to $12tn by 2021, growing at an annual average of 8 per cent.
Drivers of wealth generation in the region will be split evenly between new wealth creation and growth of performance of existing assets, according to BCG.
Another general trend in the region is clients’ looking for a comprehensive approach to investing, according to Mr AbuShaban.
“Institutional investors or some of the families are seeing a slowdown in the available capital they have to invest and in that sense they are looking at optimizing the way they manage their portfolios and making sure they are not investing haphazardly and different parts of their investment are working together,” said Mr AbuShaban.
Some clients also have a higher appetite for risk, given the low interest-rate environment that does not provide enough yield for some institutional investors. These clients are keen to invest in illiquid assets, such as private equity and infrastructure.
“What we have seen is a desire for higher returns in what has been a low-return environment specifically in various fixed income or bonds,” he said.
“In this environment, we have seen a de facto increase in the risk that clients are taking in things like illiquid investments, private equity investments, infrastructure and private debt, those kind of investments were higher illiquidity results in incrementally higher returns.”
The Abu Dhabi Investment Authority, one of the largest sovereign wealth funds, said in its 2016 report that has gradually increased its exposure in direct private equity and private credit transactions, mainly in Asian markets and especially in China and India. The authority’s private equity department focused on structured equities owing to “their defensive characteristics.”
Stan%20Lee
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Yahya Al Ghassani's bio
Date of birth: April 18, 1998
Playing position: Winger
Clubs: 2015-2017 – Al Ahli Dubai; March-June 2018 – Paris FC; August – Al Wahda
UAE currency: the story behind the money in your pockets
Company%C2%A0profile
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UAE rugby in numbers
5 - Year sponsorship deal between Hesco and Jebel Ali Dragons
700 - Dubai Hurricanes had more than 700 playing members last season between their mini and youth, men's and women's teams
Dh600,000 - Dubai Exiles' budget for pitch and court hire next season, for their rugby, netball and cricket teams
Dh1.8m - Dubai Hurricanes' overall budget for next season
Dh2.8m - Dubai Exiles’ overall budget for next season
End of free parking
- paid-for parking will be rolled across Abu Dhabi island on August 18
- drivers will have three working weeks leeway before fines are issued
- areas that are currently free to park - around Sheikh Zayed Bridge, Maqta Bridge, Mussaffah Bridge and the Corniche - will now require a ticket
- villa residents will need a permit to park outside their home. One vehicle is Dh800 and a second is Dh1,200.
- The penalty for failing to pay for a ticket after 10 minutes will be Dh200
- Parking on a patch of sand will incur a fine of Dh300
The 12 Syrian entities delisted by UK
Ministry of Interior
Ministry of Defence
General Intelligence Directorate
Air Force Intelligence Agency
Political Security Directorate
Syrian National Security Bureau
Military Intelligence Directorate
Army Supply Bureau
General Organisation of Radio and TV
Al Watan newspaper
Cham Press TV
Sama TV
The Details
Article 15
Produced by: Carnival Cinemas, Zee Studios
Directed by: Anubhav Sinha
Starring: Ayushmann Khurrana, Kumud Mishra, Manoj Pahwa, Sayani Gupta, Zeeshan Ayyub
Our rating: 4/5
Why seagrass matters
- Carbon sink: Seagrass sequesters carbon up to 35X faster than tropical rainforests
- Marine nursery: Crucial habitat for juvenile fish, crustations, and invertebrates
- Biodiversity: Support species like sea turtles, dugongs, and seabirds
- Coastal protection: Reduce erosion and improve water quality
Top 10 in the F1 drivers' standings
1. Sebastian Vettel, Ferrari 202 points
2. Lewis Hamilton, Mercedes-GP 188
3. Valtteri Bottas, Mercedes-GP 169
4. Daniel Ricciardo, Red Bull Racing 117
5. Kimi Raikkonen, Ferrari 116
6. Max Verstappen, Red Bull Racing 67
7. Sergio Perez, Force India 56
8. Esteban Ocon, Force India 45
9. Carlos Sainz Jr, Toro Rosso 35
10. Nico Hulkenberg, Renault 26
A State of Passion
Directors: Carol Mansour and Muna Khalidi
Stars: Dr Ghassan Abu-Sittah
Rating: 4/5
Director: Laxman Utekar
Cast: Vicky Kaushal, Akshaye Khanna, Diana Penty, Vineet Kumar Singh, Rashmika Mandanna
Rating: 1/5
The 12 breakaway clubs
England
Arsenal, Chelsea, Liverpool, Manchester City, Manchester United, Tottenham Hotspur
Italy
AC Milan, Inter Milan, Juventus
Spain
Atletico Madrid, Barcelona, Real Madrid
Sun jukebox
Rufus Thomas, Bear Cat (The Answer to Hound Dog) (1953)
This rip-off of Leiber/Stoller’s early rock stomper brought a lawsuit against Phillips and necessitated Presley’s premature sale to RCA.
Elvis Presley, Mystery Train (1955)
The B-side of Presley’s final single for Sun bops with a drummer-less groove.
Johnny Cash and the Tennessee Two, Folsom Prison Blues (1955)
Originally recorded for Sun, Cash’s signature tune was performed for inmates of the titular prison 13 years later.
Carl Perkins, Blue Suede Shoes (1956)
Within a month of Sun’s February release Elvis had his version out on RCA.
Roy Orbison, Ooby Dooby (1956)
An essential piece of irreverent juvenilia from Orbison.
Jerry Lee Lewis, Great Balls of Fire (1957)
Lee’s trademark anthem is one of the era’s best-remembered – and best-selling – songs.
The Saga Continues
Wu-Tang Clan
(36 Chambers / Entertainment One)
Hot%20Seat
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COMPANY%20PROFILE
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