5 papers
Quantifying Nonstabilizerness of Quantum Codes by Removing the Inert Background
Yuan Liu, Ke-Mi Xu
Nonstabilizerness (magic) is the quantum resource that, together with stabilizer operations, makes universal quantum computation possible. However, quantifying nonstabilizerness is…
Approximate Virtual Quantum Recovery
Yuan Liu, Linhan Lin, Ke-Mi Xu
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 stra…
Quantifying Nonstabilizerness of Codeword-Stabilized Codes
Yuan Liu, Ke-Mi Xu
Universal quantum computation requires non-Clifford gates, which stabilizer codes can provide transversally only up to a finite level of the Clifford hierarchy. Non-stabilizer code…
Precision Interferometry with Collectively Enhanced Atomic Mirror
Yuan Liu, Ke-Mi Xu, Hong-Bo Sun +1
Quantum metrology exploits quantum resources to enhance measurement precision beyond the classical limit. Conventional protocols normally rely on the preparation of delicate quantu…
Suppression of Local Decay in non-Markovian Waveguide QED
Yuan liu, Linhan Lin, Hong-Bo Sun
Atoms coupled to the same environment interfere with each other to yield super- or sub-radiance. Specifically, atoms in subradiant states are promising candidates for long-lifetime…