Publications by authors named "Lian-Zhen Cao"
Reciprocal or nonreciprocal bimolecular interface and quantum entanglement.
J Phys Condens Matter
October 2024
Article Synopsis
- The study focuses on a hybrid system that combines a plasmonic cavity and different molecular vibration modes, offering strong optomechanical-like interactions.
- This system serves as a quantum data bus, enabling functionalities like reciprocal and non-reciprocal information transmission between molecules.
- It also allows for the engineering of steady-state quantum entanglement through a dissipative method, potentially broadening the applications of quantum technology beyond traditional optomechanical systems.
Realization of chiral two-mode Lipkin-Meshkov-Glick models via acoustics.
Rep Prog Phys
September 2024
Theare mimicked in a potential hybrid quantum system, involving two ensembles of solid-state spins coupled to a pair of interconnected surface-acoustic-wave cavities. With the assistance of dichromatic classical optical drives featuring chiral designs, it can simulate two-mode LMG-type long-range spin-spin interactions with left-right asymmetry. For applications, this unconventional LMG model can not only engineer both ensembles of collective spins into two-mode spin-squeezed states but also simulate novel quantum critical phenomena and time crystal behaviors, among others.
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- This paper is the first to experimentally demonstrate the information-theoretic spin-1/2 inequality using high-quality entangled states, which is important in information theory.
- The study examines how the difference in information entropy changes when photons travel through various noisy channels, establishing rules on how this information degrades.
- Overall, the research enhances tools for quantum information processing and provides new understanding of quantum correlations in systems affected by external noise.
The highest qubit Ardehali inequality violation with 203 standard deviations is first experimentally demonstrated using the hyper-entangled four-photon-eight-qubit Greenberger-Horne-Zeilinger (GHZ) state. Moreover, we experimentally investigate the robustness of the Ardehali inequality for the four-, six-, and eight-qubit GHZ states in a rotary noisy environment systematically. Our results first validate the Ardehali' theoretical statement of relation between violation of Ardehali inequality and particle number, and proved that Ardehali inequality is more robust against noise in larger number qubit GHZ states, and provided an experimental benchmark for us to estimate the safety of quantum channel in the noisy environment.
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