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- Juan Yin, Ji-Gang Ren, +17 authors Jian-Wei Pan
- Nature
- 2012

Transferring an unknown quantum state over arbitrary distances is essential for large-scale quantum communication and distributed quantum networks. It can be achieved with the help of long-distance quantum teleportation and entanglement distribution. The latter is also important for fundamental tests of the laws of quantum mechanics. Although quantum… (More)

- Juan Yin, Yuan Cao, +11 authors Jian-Wei Pan
- 2014 Conference on Lasers and Electro-Optics…
- 2013

Here, we strictly closed the loopholes by observing a 12 h continuous violation of the Bell inequality and concluded that the lower bound speed of spooky action was 4 orders of magnitude of the speed of light.

- Ji-Gang Ren, Ping Josephine Xu, +29 authors Jian-Wei Pan
- Nature
- 2017

An arbitrary unknown quantum state cannot be measured precisely or replicated perfectly. However, quantum teleportation enables unknown quantum states to be transferred reliably from one object to another over long distances, without physical travelling of the object itself. Long-distance teleportation is a fundamental element of protocols such as… (More)

- Hai-Lin Yong, Cheng Chih Liu, +4 authors Jian-Wei Pan
- 2013

Quantum Key Distribution on Free-space Channel Hai-Lin Yong,1 Chang Liu,1 Dong-Dong Li,1 Wen-Jie Zou,2 Ji-Gang Ren,1 Cheng-Zhi Peng,1 and Jian-Wei Pan1 1. Shanghai Branch, National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Shanghai 201315, China 2. Department of Physics,… (More)

- Yuan Cao, Hao Liang, +10 authors Jian-Wei Pan
- Optics express
- 2013

We report a free-space entanglement-based quantum key distribution experiment, implementing the biased basis protocol between two sites which are 15.3 km apart. Photon pairs from a polarization-entangled source are distributed through two 7.8-km free-space optical links. An optimal bias 20:80 between the X and Z basis is used. A post-processing scheme with… (More)

- Cheng Wu, Bing Bai, +14 authors Jian-Wei Pan
- Physical review letters
- 2017

Random numbers are indispensable for a variety of applications ranging from testing physics foundations to information encryption. In particular, nonlocality test provide strong evidence for our current understanding of nature-quantum mechanics. All the random number generators (RNGs) used for the existing tests are constructed locally, making the test… (More)

- Sheng-Kai Liao, Wen-Qi Cai, +31 authors Jian-Wei Pan
- Nature
- 2017

Quantum key distribution (QKD) uses individual light quanta in quantum superposition states to guarantee unconditional communication security between distant parties. However, the distance over which QKD is achievable has been limited to a few hundred kilometres, owing to the channel loss that occurs when using optical fibres or terrestrial free space that… (More)

- Wei-Yue Liu, Hai-Lin Yong, +4 authors Jian-Wei Pan
- 2013

Nowadays, information security plays an increasingly important role in global communication. Quantum cryptography [1, 2], particularly quantum key distribution (QKD), offers means to expand a secure key between two distant parties, whose security is stemmed from the fundamental laws of quantum mechanics [3–5]. In practice, QKD experiments have been… (More)

- Juan Yin, Yuan Cao, +31 authors Jian-Wei Pan
- Science
- 2017

Long-distance entanglement distribution is essential for both foundational tests of quantum physics and scalable quantum networks. Owing to channel loss, however, the previously achieved distance was limited to ~100 kilometers. Here we demonstrate satellite-based distribution of entangled photon pairs to two locations separated by 1203 kilometers on Earth,… (More)

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