activity
20242026
collaborators

7 papers

quant-ph2026

Unified Framework for Quantum Resource Recycling via Instrument-Dependent Back-action

Zinuo Cai, Jianxin Song, Changliang Ren

Accurate characterization of measurement backaction is crucial for understanding the limits of reusing quantum correlations in sequential scenarios. Here, we develop a unified quan…

quant-ph2026

Locality Implies Complex Numbers in Quantum Mechanics

Tianfeng Feng, Changliang Ren, Vlatko Vedral

We show that the presented real-number quantum theories, compatible with the independent source assumption, require the inclusion of a nonlocal map. This means that if the independ…

quant-ph2025

Efficient Identification the Inequivalence of Mutually Unbiased Bases via Finite Operators

Jianxin Song, Zhen-Peng Xu, Changliang Ren

The structural characterization of high-dimensional mutually unbiased bases (MUBs) by classifying MUBs subsets remains a major open problem. The existing methods not only fail to c…

quant-ph2025

Enhanced Nonreciprocal Quantum Battery Performance via Nonlinear Two-Photon Driving

Luxin Xu, Changliang Ren

Quantum batteries have attracted significant attention as efficient quantum energy storage devices.In this work, we propose a nonlinear two-photon driving quantum battery model fea…

quant-ph2025

Complementarity Reveals Entanglement Sharing in Sequential Quantum Measurements

Zinuo Cai, Changliang Ren

We investigate entanglement sharing in a two-qubit sequential measurement scenario using three complementary classical correlation metrics: mutual information (I), sum of condition…

quant-ph2024

Quantum energy teleportation via random bi-partitioning in N-qubit systems

Zhirong Xun, Changliang Ren

This study investigates quantum energy teleportation (QET) using stochastic bi-partitioning in an body Hamiltonian system. In this protocol, project measurements are performed…