Tuning quantum discord in Josephson charge qubits system
Bo-xing Shang, Xi-qiang Xi
TL;DR
This paper investigates how to control quantum discord in a two-qubit Josephson charge system, showing that magnetic flux is more effective than voltage for tuning quantum correlations, and identifying parameters for maximizing quantum discord.
Contribution
It introduces a method to tune quantum discord in Josephson charge qubits, highlighting the effectiveness of magnetic flux over voltage for this purpose.
Findings
Magnetic flux $\
Magnetic flux $\
Abstract
A type of two qubits Josephson charge system is constructed in this paper, and properties of the quantum discord (QD) as well as the differences between thermal QD and thermal entanglement were investigated. A detailed calculation shows that the magnetic flux is more efficient than the voltage in tuning QD. By choosing proper system parameters, one can realize the maximum QD in our two qubits Josephson charge system.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsQuantum Information and Cryptography · Quantum Computing Algorithms and Architecture · Quantum and electron transport phenomena