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of 994
pro vyhledávání: '"Chau H"'
Quantum Conference Key Agreement (CKA) provides a secure method for multi-party communication. A recently developed interference-based prepare-and-measure quantum CKA possesses the advantages of measurement-device-independence, namely, being immune t
Externí odkaz:
http://arxiv.org/abs/2407.15761
Autor:
Wang, Rong, Chau, H. F.
In quantum Shannon theory, various kinds of quantum entropies are used to characterize the capacities of noisy physical systems. Among them, min-entropy and its smooth version attract wide interest especially in the field of quantum cryptography as t
Externí odkaz:
http://arxiv.org/abs/2406.15226
Autor:
Chau, H. F.
Arbitrarily accurate fault-tolerant (FT) universal quantum computation can be carried out using the Clifford gates Z, S, CNOT plus the non-Clifford T gate. Moreover, a recent improvement of the Solovay-Kitaev theorem by Kuperberg implies that to appr
Externí odkaz:
http://arxiv.org/abs/2406.04846
Autor:
Huy H. Pham, Trinh M. Vu, Chau H. Nguyen, Anh H. Le, Dung P. Nguyen, Toan D. Pham, Tuong M. Ho MD, Lan N. Vuong MD, PhD
Publikováno v:
Reproductive Medicine and Biology, Vol 21, Iss 1, Pp n/a-n/a (2022)
Abstract Purpose This study evaluated the influence of post‐warming culture time on the live birth rate in day‐3 and day‐5 frozen embryo transfer (FET) cycles. Methods This multicenter, retrospective cohort study was performed at IVFMD, My Duc
Externí odkaz:
https://doaj.org/article/5d159bf2830048309a4467b530a9585a
Autor:
Giang M. Tran, Thao P. Ho-Le, Duc T. Ha, Chau H. Tran-Nguyen, Tuyet S. M. Nguyen, Thao T. N. Pham, Tuyet A. Nguyen, Dung A. Nguyen, Hoa Q. Hoang, Ngoc V. Tran, Tuan V. Nguyen
Publikováno v:
BMC Infectious Diseases, Vol 17, Iss 1, Pp 1-7 (2017)
Abstract Background Antimicrobial resistance has emerged as a major concern in developing countries. The present study sought to define the pattern of antimicrobial resistance in ICU patients with ventilator-associated pneumonia. Methods Between Nove
Externí odkaz:
https://doaj.org/article/abee751068844ecc89c22f7954d3aff2
Autor:
Chau, H. F., Zeng, Wenxin
Quantum speed limit (QSL) is the study of fundamental limits on the evolution time of quantum systems. For instance, under the action of a time-independent Hamiltonian, the evolution time between an initial and a final quantum state obeys various mut
Externí odkaz:
http://arxiv.org/abs/2310.08813
Autor:
Chau, H. F.
The Margolus-Levitin (ML) bound says that for any time-independent Hamiltonian, the time needed to evolve from one quantum state to another is at least $\pi \alpha(\epsilon) / (2 \langle E-E_0 \rangle)$, where $\langle E-E_0 \rangle$ is the expected
Externí odkaz:
http://arxiv.org/abs/2305.10101
Autor:
Chan, Kai Sum, Chau, H. F.
Wavefront of light passing through turbulent atmosphere gets distorted. This causes signal loss in free-space optical communication as the light beam spreads and wanders at the receiving end. Frequency and/or time division multiplexing adaptive optic
Externí odkaz:
http://arxiv.org/abs/2206.12173
Publikováno v:
Phys. Rev. Lett. 127, 190502 (2021)
Completely depolarising channels are often regarded as the prototype of physical processes that are useless for communication: any message that passes through them along a well-defined trajectory is completely erased. When two such channels are used
Externí odkaz:
http://arxiv.org/abs/2005.00618
Autor:
Chau, H. F.
Publikováno v:
Phys. Rev. A 102, 012611 (2020)
In quantum key distribution, measurement-device-independent and decoy-state techniques enable the two cooperative agents to establish a shared secret key using imperfect measurement devices and weak Poissonian sources, respectively. Investigations so
Externí odkaz:
http://arxiv.org/abs/2003.08549