China-Quantum Nonlocality

Chinese physicists first produce quantum nonlocality from contextuality

  • English

Shotlist


Hefei City, Anhui Province, east China - Dec 1, 2016
1. Entrance to Key Laboratory of Quantum Information, Chinese Academy of Sciences (CAS)
2. Various of researchers doing experiment
3. Various of experiment
4. SOUNDBITE (Chinese) Li Chuanfeng, member of research team, professor of Key Laboratory of Quantum Information, CAS (partially overlaid with shot 5):
"The contextuality means there is a context. The former context affects the latter context. We have no context in the classical (normal) world, but the quatum state is special. If somebody else has seen it before, that will affect the result you see now. This is the contextuality. Through the contextuality, we can produce the nonlocality. We are the first to get this finding."
++SHOTS OVERLAYING SOUNDBITE++
5. Various of experiment
++SHOTS OVERLAYING SOUNDBITE++
6. Various of researchers in lab
7. SOUNDBITE (Chinese) Li Chuanfeng, member of research team, professor of Key Laboratory of Quantum Information, CAS (partially overlaid with shot 8):
"Quantum computation and quantum communication were separately studied and developed before. Now we can design such a quantum state, in which you can do quantum secure communication, and you can also do fault-tolerant quantum computation at the same time. This concept never exist before."
++SHOT OVERLAYING SOUNDBITE++
8. Experiment
++SHOTS OVERLAYING SOUNDBITE++
9. Various of researchers doing experiment
10. Equipment

Storyline


Chinese physicists have experimentally produced quantum nonlocality from contextuality for the first time in the world, laying a foundation for the design of a quantum system integrating quantum computation and quantum communication.

The findings of the research team led by Guo Guangcan, an academician of Chinese Academy of Sciences, were published in Physical Review Letters in the title of "Nonlocality from Local Contexuality" on Nov. 25.

The quantum nonlocality means that two quantums, which are in an entanglement state, keep mysterious contacts no matter how far they are from each other in the space. Measurement on one of the quantums will immediately cause changes to the other.

The quantum nonlocality was proposed by Albert Einstein in 1935, who once described it as "spooky action at a distance".

"The contextuality means there is a context. The former context affects the latter context. We have no context in the classical (normal) world, but the quatum state is special. If somebody else has seen it before, that will affect the result you see now. This is the contextuality. Through the contextuality, we can produce the nonlocality. We are the first to get this finding," said Li Chuanfeng, member of the team and professor of Key Laboratory of Quantum Information, CAS.

Li said that the contextuality is the basic resource for quantum computation and the nonlocality is the basic resource for quantum secure communication.

"Quantum computation and quantum communication were separately studied and developed before. Now we can design such a quantum state, in which you can do quantum secure communication, and you can also do fault-tolerant quantum computation at the same time. This concept never exist before," said Li.



DOWNLOAD
  • ID : 8037817
  • Dateline : Dec 1, 2016
  • Location : Hefei,China
  • Category : science and technology
  • Duration : 2'03
  • Audio Language : Chinese/Nats
  • Source : China Central Television (CCTV)
  • Restrictions : No access Chinese mainland
  • Published : 2016-12-03 21:48
  • Last Modified : 2017-12-23 15:55:00
  • Version : 3

China-Quantum Nonlocality

Chinese physicists first produce quantum nonlocality from contextuality

Dateline : Dec 1, 2016

Location : Hefei,China

Duration : 2'03

  • English


Hefei City, Anhui Province, east China - Dec 1, 2016
1. Entrance to Key Laboratory of Quantum Information, Chinese Academy of Sciences (CAS)
2. Various of researchers doing experiment
3. Various of experiment
4. SOUNDBITE (Chinese) Li Chuanfeng, member of research team, professor of Key Laboratory of Quantum Information, CAS (partially overlaid with shot 5):
"The contextuality means there is a context. The former context affects the latter context. We have no context in the classical (normal) world, but the quatum state is special. If somebody else has seen it before, that will affect the result you see now. This is the contextuality. Through the contextuality, we can produce the nonlocality. We are the first to get this finding."
++SHOTS OVERLAYING SOUNDBITE++
5. Various of experiment
++SHOTS OVERLAYING SOUNDBITE++
6. Various of researchers in lab
7. SOUNDBITE (Chinese) Li Chuanfeng, member of research team, professor of Key Laboratory of Quantum Information, CAS (partially overlaid with shot 8):
"Quantum computation and quantum communication were separately studied and developed before. Now we can design such a quantum state, in which you can do quantum secure communication, and you can also do fault-tolerant quantum computation at the same time. This concept never exist before."
++SHOT OVERLAYING SOUNDBITE++
8. Experiment
++SHOTS OVERLAYING SOUNDBITE++
9. Various of researchers doing experiment
10. Equipment


Chinese physicists have experimentally produced quantum nonlocality from contextuality for the first time in the world, laying a foundation for the design of a quantum system integrating quantum computation and quantum communication.

The findings of the research team led by Guo Guangcan, an academician of Chinese Academy of Sciences, were published in Physical Review Letters in the title of "Nonlocality from Local Contexuality" on Nov. 25.

The quantum nonlocality means that two quantums, which are in an entanglement state, keep mysterious contacts no matter how far they are from each other in the space. Measurement on one of the quantums will immediately cause changes to the other.

The quantum nonlocality was proposed by Albert Einstein in 1935, who once described it as "spooky action at a distance".

"The contextuality means there is a context. The former context affects the latter context. We have no context in the classical (normal) world, but the quatum state is special. If somebody else has seen it before, that will affect the result you see now. This is the contextuality. Through the contextuality, we can produce the nonlocality. We are the first to get this finding," said Li Chuanfeng, member of the team and professor of Key Laboratory of Quantum Information, CAS.

Li said that the contextuality is the basic resource for quantum computation and the nonlocality is the basic resource for quantum secure communication.

"Quantum computation and quantum communication were separately studied and developed before. Now we can design such a quantum state, in which you can do quantum secure communication, and you can also do fault-tolerant quantum computation at the same time. This concept never exist before," said Li.



ID : 8037817

Published : 2016-12-03 21:48

Last Modified : 2017-12-23 15:55:00

Source : China Central Television (CCTV)

Restrictions : No access Chinese mainland

More



Login
Username
Password
code
Sign In
OK