403 citations · 1.5k across the 77 of their papers we have counts for
19 papers · 1 filter
Energy requirement for implementing unitary gates on energy-unbounded systems
Yuxiang Yang, Renato Renner, Giulio Chiribella
The processing of quantum information always has a cost in terms of physical resources such as energy or time. Determining the resource requirements is not only an indispensable st…
Quantum communication through devices with indefinite input-output direction
Zixuan Liu, Ming Yang, Giulio Chiribella
Certain quantum devices, such as half-wave plates and quarter-wave plates in quantum optics, are bidirectional, meaning that the roles of their input and output ports can be exchan…
Quantum Similarity Testing with Convolutional Neural Networks
Ya-Dong Wu, Yan Zhu, Ge Bai +2
The task of testing whether two uncharacterized quantum devices behave in the same way is crucial for benchmarking near-term quantum computers and quantum simulators, but has so fa…
Experimental demonstration of input-output indefiniteness in a single quantum device
Yu Guo, Zixuan Liu, Hao Tang +6
Quantum theory allows information to flow through a single device in a coherent superposition of two opposite directions, resulting into situations where the input-output direction…
Compression for Qubit Clocks
Yuxiang Yang, Giulio Chiribella, Masahito Hayashi
Two-Ievel (qubit) clock systems are often used to perform precise measurement of time. In this work, we propose a compression protocol for identically prepared states of qubit…
Measuring incompatibility and clustering quantum observables with a quantum switch
Ning Gao, Dantong Li, Anchit Mishra +3
The existence of incompatible observables is a cornerstone of quantum mechanics and a valuable resource in quantum technologies. Here we introduce a measure of incompatibility, cal…