Skip to content

Author

Ke-Mi Xu

We have 5 of 10 papers

We haven’t gathered this author’s papers yet. Follow them and we’ll fetch their work.

Not the right person? Other researchers publish under this name.

Preprint Aug 2026

Quantifying Nonstabilizerness of Codeword-Stabilized Codes

Fault-tolerant quantum computation requires non-Clifford gates, which stabilizer codes cannot supply transversally. Non-stabilizer codes are the natural place to look for them, yet no quantitative theory of the nonstabilizerness (or magic) carried by such a code has existed. We develop one for codeword-stabilized (CWS)...

Yuan Liu, Ke-Mi Xu · 3 citations
Review Open access Sep 2026

Three-dimensional laser micro/nano printing for optical computing

With the rapid growth of data-intensive computing, optical computing has become an important method for information processing with high bandwidth, low latency, and parallel operation. Early implementations were bench-top free-space systems, in which lenses, masks, and holograms were used to perform Fourier filtering,...

Tian-Wei Wang, Yi-Yi Zhu, Wei-Wei Liu et al. · 0 citations
Preprint Sep 2026

Quantifying Nonstabilizerness of Quantum Codes by Removing the Inert Background

Nonstabilizerness (magic) is the quantum resource that, together with stabilizer operations, makes universal quantum computation possible. It appears in fault-tolerant codes and topological order. However, quantifying nonstabilizerness is difficult. The standard measure sums over exponentially many Pauli operators, and...

Yuan Liu, Ke-Mi Xu · 0 citations
Preprint Jul 2026

Approximate Virtual Quantum Recovery

The recovery of quantum information after subsystem loss is a central challenge in quantum information processing. However, some states remain beyond the reach of any recovery strategies. Here we identify the algebraic origin of virtual irrecoverability, the \emph{ghost information}---correlations encoded in the global...

Yuan Liu, Lin-Han Lin, Ke-Mi Xu · 1 citation
Preprint Jul 2026

Why Some Quantum States Cannot Be Recovered

The recovery of quantum information after subsystem loss is a central challenge in quantum information processing. However, some states remain beyond the reach of any recovery strategies. Here we identify the algebraic origin of irrecoverability, the ghost information---correlations encoded in the global state that lea...

Yuan Liu, Linhan Lin, Ke-Mi Xu · 1 citation

We use cookies to run the site and, with your consent, for analytics and to show ads. See our Cookie Policy.