152 citations · 1.2k across the 50 of their papers we have counts for
6 papers · 2 filters
A Characterization of Antidegradable Qubit Channels
Connor Paddock, Jianxin Chen
This paper provides a characterization for the set of antidegradable qubit channels. The characterization arises from the correspondence between the antidegradability of a channel…
Quantum State Tomography for Generic Pure States
Shilin Huang, Jianxin Chen, Youning Li +1
We show that a generic -qudit pure quantum state is uniquely determined by only of its -particle reduced density matrices. Therefore we give a met…
A Separability-Entanglement Classifier via Machine Learning
Sirui Lu, Shilin Huang, Keren Li +7
The problem of determining whether a given quantum state is entangled lies at the heart of quantum information processing, which is known to be an NP-hard problem in general. Despi…
Local density matrices of many-body states in the constant weight subspaces
Jianxin Chen, Muxin Han, Youning Li +2
Let be the spin- Hilbert space with -dimensional single particle space. We fix an orthonormal basis for each …
Quantum algorithm for multivariate polynomial interpolation
Jianxin Chen, Andrew M. Childs, Shih-Han Hung
How many quantum queries are required to determine the coefficients of a degree- polynomial in variables? We present and analyze quantum algorithms for this multivariate pol…
A Finite Presentation of CNOT-Dihedral Operators
Matthew Amy, Jianxin Chen, Neil J. Ross
We give a finite presentation by generators and relations of the unitary operators expressible over the {CNOT, T, X} gate set, also known as CNOT-dihedral operators. To this end, w…