153 citations · 480 across the 21 of their papers we have counts for
21 papers
From Certifying Rank Projectors To Non-Positivity, Entanglement, And Non-Hermitian Witnesses Through Traces Of Matrix Powers
H. F. Chau
We all know that a density matrix is pure if and only if . But is this the only way to prove the purity of using the trace of its powers? Here I syst…
Quantum and Classical Data Transmission through Completely Depolarising Channels in a Superposition of Cyclic Orders
Giulio Chiribella, Matt Wilson, H. F. Chau
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-def…
Application of an Improved Version of McDiarmid Inequality in Finite-Key-Length Decoy-State Quantum Key Distribution
H. F. Chau, K. C. Joseph Ng
In practical decoy-state quantum key distribution, the raw key length is finite. Thus, deviation of the estimated single photon yield and single photon error rate from their respec…
Decoy State Quantum Key Distribution With More Than Three Types Of Photon Intensity Pulses
H. F. Chau
Decoy state method closes source security loophole in quantum key distribution (QKD) using laser source. In this method, accurate estimates of the detection rates of vacuum and sin…
Proof-of-principle experimental realization of a qubit-like qudit-based quantum key distribution scheme
Shuang Wang, Zhen-Qiang Yin, H. F. Chau +4
In comparison to qubit-based protocols, qudit-based quantum key distribution (QKD) ones gen- erally allow two cooperative parties to share unconditionally secure keys under a highe…
Experimentally Feasible Quantum-Key-Distribution Scheme Using Qubit-Like Qudits And Its Comparison With Existing Qubit- and Qudit-Based Protocols
H. F. Chau, Qinan Wang, Cardythy Wong
Recently, Chau introduced an experimentally feasible qudit-based quantum-key-distribution (QKD) scheme. In that scheme, one bit of information is phase encoded in the prepared stat…