1xbet
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
betforward
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
yasbetir1.xyz
winbet-bet.com
1kickbet1.com
1xbet-ir1.xyz
hattrickbet1.com
4shart.com
manotobet.net
hazaratir.com
takbetir2.xyz
1betcart.com
betforwardperir.xyz
betforward-shart.com
betforward.com.co
betforward.help
betfa.cam
2betboro.com
1xbete.org
1xbett.bet
romabet.cam
megapari.cam
mahbet.cam
1xbetgiris.cam
betwiner.org
betwiner.org
1xbetgiris.cam
1xbet
1xbet
alvinbet.site
alvinbet.bet
alvinbet.help
alvinbet.site
alvinbet.bet
alvinbet.help
1xbet giris
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
betwinner
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
1xbet
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
betforward
betforward
betforward
betforward
betforward
betforward
betforward
betforward
yasbet
yasbet
yasbet
yasbet
yasbet
yasbet
yasbet
yasbet
1xbet
1xbet
1xbet
1xbet
1xbet
1xbet
1xbet
1xbet
1xbet
betforward
betforward
betforward
betforward
betforward
betforward
betforward
betforward
yasbet
yasbet
yasbet
yasbet
yasbet
yasbet
yasbet
yasbet
1xbet
1xbet
1xbet
1xbet
1xbet
1xbet
1xbet
1xbet
1xbet
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
betcart
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی

Global Statistics

All countries
695,781,740
Confirmed
Updated on September 26, 2023 9:04 pm
All countries
627,110,498
Recovered
Updated on September 26, 2023 9:04 pm
All countries
6,919,573
Deaths
Updated on September 26, 2023 9:04 pm

Global Statistics

All countries
695,781,740
Confirmed
Updated on September 26, 2023 9:04 pm
All countries
627,110,498
Recovered
Updated on September 26, 2023 9:04 pm
All countries
6,919,573
Deaths
Updated on September 26, 2023 9:04 pm

China’s quantum satellite helps send secure messages over 1200km

City of Cape Town urges people to leave Kataza the baboon alone

Kataza the baboon. Facebook / Baboon Matters The City of Cape Town has asked the public not to feed a baboon that has relocated to Tokai. The baboon, known as Kataza or SK11, is slowly being integrated into the Tokai troop. Video footage, however, shows humans feeding Kataza. The City of Cape Town has requested that Kataza…

Rassie: There are various benefits for SA rugby to go north

As SA Rugby moves to determine which franchises will go to Europe in future, Rassie Erasmus has noted several potential benefits for the local game should that route be followed.The national director of rugby believes the high world rankings of Wales, Ireland and Scotland mean PRO Rugby is competitive and that fans will eventually identify…

A Once-in-a-Century Climate ‘Anomaly’ Might Have Made World War I Even Deadlier

(John Finney Photography/Moment/Getty Images) An abnormally bad season of weather may have had a significant impact on the death toll from both World War I and the 1918 Spanish flu pandemic, according to new research, with many more lives being lost due to torrential rain and plummeting temperatures. Through a detailed analysis of an ice…

PICS | Truck driver killed in Pinetown after truck ploughs into several cars

A vehicle that was hit in the accident. A truck driver was killed in a horrific sequence of events following an initial crash in Pinetown. While trying to move the truck after the accident, it appeared to lose control. He died after falling out of the truck which ploughed into several cars and a wall.A truck driver…

42 people in court for R56m police vehicle branding scam

Forty-two people have been implicated in a police car branding scam. Forty-two people have been arrested for their alleged involvement in a police vehicle branding scam. They face a range of charges including corruption, fraud, money laundering, theft and perjury.Of these, 22 are serving police members.Forty-two people are set to appear in the Pretoria Magistrate's Court on…

By Leah Crane

New Scientist Default Image

Ground stations use lasers to link with the Micius quantum satellite

Jin Liwang/Xinhua/Alamy

Two observatories in China have used a quantum communications satellite to send an encrypted message a record-breaking 1200 kilometres – a major step towards building a secure quantum internet.

China launched its Micius quantum satellite in 2016. It produces pairs of photons that are quantum entangled, meaning the measured state of one photon is linked to the measured state of the other, regardless of the distance between them.

Entanglement can’t directly transfer information, because that would mean data is travelling faster than light. But entangled particles can be used to create secret “keys” that enable extraordinarily secure communication.

Advertisement

Artur Ekert at the University of Oxford and his colleagues used Micius to beam entangled photons to observatories 1200 kilometres apart in China, allowing those two observatories to share quantum encrypted data from farther apart than ever before.

The previous record for this kind of communication is just 100 kilometres along a fibre optic cable. “Fibres are good for intermediate distances, for 30 to 50 kilometres or so, but too noisy for longer distances,” says Ekert.

The latest system had an error rate of just 4.5 per cent. This is particularly important in quantum communication, because any attempt at hacking or eavesdropping on the signal to find out the key would cause more errors in the communication. Starting with a low error rate is necessary so that the additional errors caused by eavesdropping are noticeable.

For example, if the satellite were to be hacked, this would be noticed by tests run on the ground when the observatories received the photons. This kind of communication could eventually be used to build a secure, unhackable internet of quantum information. “Entanglement provides almost ultimate security,” says Ekert.

Journal reference: Nature, DOI: 10.1038/s41586-020-2401-y

More on these topics:

Read More

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Hot Topics

City of Cape Town urges people to leave Kataza the baboon alone

Kataza the baboon. Facebook / Baboon Matters The City of Cape Town has asked the public not to feed a baboon that has relocated to Tokai. The baboon, known as Kataza or SK11, is slowly being integrated into the Tokai troop. Video footage, however, shows humans feeding Kataza. The City of Cape Town has requested that Kataza…

Rassie: There are various benefits for SA rugby to go north

As SA Rugby moves to determine which franchises will go to Europe in future, Rassie Erasmus has noted several potential benefits for the local game should that route be followed.The national director of rugby believes the high world rankings of Wales, Ireland and Scotland mean PRO Rugby is competitive and that fans will eventually identify…

A Once-in-a-Century Climate ‘Anomaly’ Might Have Made World War I Even Deadlier

(John Finney Photography/Moment/Getty Images) An abnormally bad season of weather may have had a significant impact on the death toll from both World War I and the 1918 Spanish flu pandemic, according to new research, with many more lives being lost due to torrential rain and plummeting temperatures. Through a detailed analysis of an ice…

Related Articles

City of Cape Town urges people to leave Kataza the baboon alone

Kataza the baboon. Facebook / Baboon Matters The City of Cape Town has asked the public not to feed a baboon that has relocated to Tokai. The baboon, known as Kataza or SK11, is slowly being integrated into the Tokai troop. Video footage, however, shows humans feeding Kataza. The City of Cape Town has requested that Kataza…

Rassie: There are various benefits for SA rugby to go north

As SA Rugby moves to determine which franchises will go to Europe in future, Rassie Erasmus has noted several potential benefits for the local game should that route be followed.The national director of rugby believes the high world rankings of Wales, Ireland and Scotland mean PRO Rugby is competitive and that fans will eventually identify…

A Once-in-a-Century Climate ‘Anomaly’ Might Have Made World War I Even Deadlier

(John Finney Photography/Moment/Getty Images) An abnormally bad season of weather may have had a significant impact on the death toll from both World War I and the 1918 Spanish flu pandemic, according to new research, with many more lives being lost due to torrential rain and plummeting temperatures. Through a detailed analysis of an ice…