Zobrazeno 1 - 10
of 439
pro vyhledávání: '"Leong-chuan Kwek"'
Autor:
Xiao-Min Hu, Yi Xie, Atul Singh Arora, Ming-Zhong Ai, Kishor Bharti, Jie Zhang, Wei Wu, Ping-Xing Chen, Jin-Ming Cui, Bi-Heng Liu, Yun-Feng Huang, Chuan-Feng Li, Guang-Can Guo, Jérémie Roland, Adán Cabello, Leong-Chuan Kwek
Publikováno v:
npj Quantum Information, Vol 9, Iss 1, Pp 1-11 (2023)
Abstract Self-testing allows one to characterise quantum systems under minimal assumptions. However, existing schemes rely on quantum nonlocality and cannot be applied to systems that are not entangled. Here, we introduce a robust method that achieve
Externí odkaz:
https://doaj.org/article/0a016997515a4f0093cc48cfa54be012
Publikováno v:
Entropy, Vol 25, Iss 8, p 1116 (2023)
Quantum synchronization has emerged as a crucial phenomenon in quantum nonlinear dynamics with potential applications in quantum information processing. Multiple measures for quantifying quantum synchronization exist. However, there is currently no w
Externí odkaz:
https://doaj.org/article/5301c40842524854ae03dc9d403eefcc
Publikováno v:
AAPPS Bulletin, Vol 31, Iss 1, Pp 1-8 (2021)
Abstract Quantum key distribution is a matured quantum science and technology. Over the last 20 years, there has been substantial research and development in this area. Recently, silicon technology has offered tremendous promise in the field for impr
Externí odkaz:
https://doaj.org/article/336be052a8fd4c468cc10ae25df398a6
Publikováno v:
Communications Physics, Vol 4, Iss 1, Pp 1-8 (2021)
Existing low-temperature thermometers can only perform with high precision within a narrow range. Here, the authors provide a bound for global thermometry across a wide range, including the design of optimal thermometers with the state-of-the-art qua
Externí odkaz:
https://doaj.org/article/04ee256b1cc74355ae8b1f00442e8952
Publikováno v:
PRX Quantum, Vol 3, Iss 3, p 030344 (2022)
Self-testing is a technology to certify states and measurements using only the statistics of the experiment. Self-testing is possible if some extremal points in the set B_{Q} of quantum correlations for a Bell experiment are achieved, up to isometrie
Externí odkaz:
https://doaj.org/article/e5a9d3b5b1454c7e9a22d2cd79165cea
Autor:
Wai-Keong Mok, Leong-Chuan Kwek
Publikováno v:
Entropy, Vol 24, Iss 1, p 136 (2022)
The ability to control the flow of quantum information is deterministically useful for scaling up quantum computation. In this paper, we demonstrate a controllable quantum switchboard which directs the teleportation protocol to one of two targets, fu
Externí odkaz:
https://doaj.org/article/d74f37c5c2a242ef9d56a53d1ddafdd5
Publikováno v:
Physical Review Research, Vol 3, Iss 3, p 033093 (2021)
The idea of self-testing is to render guarantees concerning the inner workings of a device based on the measurement statistics. It is one of the most formidable quantum certification and benchmarking schemes. Recently it was shown [A. Coladangelo, K.
Externí odkaz:
https://doaj.org/article/2888345d0f744615af359dd1a4425296
Publikováno v:
Entropy, Vol 23, Iss 6, p 685 (2021)
Quantum metrology overcomes standard precision limits and has the potential to play a key role in quantum sensing. Quantum mechanics, through the Heisenberg uncertainty principle, imposes limits on the precision of measurements. Conventional bounds t
Externí odkaz:
https://doaj.org/article/e7323af256ce4e15bb78434cc3e659c9
Publikováno v:
Physical Review Research, Vol 3, Iss 1, p 013034 (2021)
The design, accurate preparation, and manipulation of quantum states in quantum circuits are essential operational tasks at the heart of quantum technologies. Nowadays, circuits can be designed with physical parameters that can be controlled with unp
Externí odkaz:
https://doaj.org/article/a53846710d0a49eeb0383fdacf5dae83
Publikováno v:
New Journal of Physics, Vol 23, Iss 3, p 033006 (2021)
A fundamental problem in quantum computation and quantum information is finding the minimum quantum dimension needed for a task. For tasks involving state preparation and measurements, this problem can be addressed using only the input–output corre
Externí odkaz:
https://doaj.org/article/9a1a8989d1114d0090c9a7f8368671c1