18 papers
Non-signaling assistance in prepare-and-measure scenarios with classical communication
José Nogueira, Carlos Vieira, Lucas E. A. Porto +3
Extracting the full power of non-local correlations in prepare-and-measure (PM) scenarios requires precise control over the timing and structure of the receiver's measurements. Ind…
Witness expansion: A unified framework for analytical and measurable mixed-state resource detection
Yifan Tang, Chengkai Zhu, Yuzhen Zhang +6
Quantum information science aims to harness different kinds of quantum resources to accomplish specific information-processing tasks. These resources also play an increasingly impo…
Optimised Inference of Quantum Phenomena in High-Energy Collider Experiments
Hai-Chau Nguyen, Gilberto Tetlalmatzi-Xolocotzi, Carmen Diez Pardos +2
Entanglement, a fundamental phenomenon of quantum theory, has recently been observed in processes in high-energy physics. This opens new avenues for probing quantum effects in rela…
Reference-frame-independent quantum metrology
Satoya Imai, Otfried Gühne, Géza Tóth
How can we perform a metrological task if only limited control over a quantum system is given? Here, we present systematic methods for conducting nonlinear quantum metrology in sce…
Simultaneous Detection of High-Dimensional Entanglement for Two Unknown Quantum States
Mao-Sheng Li, Chang-Yue Zhang, Zheng Zheng +7
The state overlap, quantified via $\tr[ÏÏ]$, is a metric widely used to assess the closeness between two quantum states and . Although global state overlap alone does no…
Complete Hierarchies for the Geometric Measure of Entanglement
Lisa T. Weinbrenner, Albert Rico, Kenneth Goodenough +2
In quantum physics, multiparticle systems are described by quantum states acting on tensor products of Hilbert spaces. This product structure leads to the distinction between produ…