Abstract
The presence of long-range spin and charge correlations underlies a variety of physical phenomena in condensed-matter systems, especially, in qubits systems. This work aims to study quantum entanglement versus spin and charge correlations in qubits systems modeled by 1D Extended Hubbard Model. The considered model is parameterized by on-site coulomb interaction energy U, off-site coulomb interaction energy V and exchange spin-spin interaction γJ, where γ is the anisotropy parameter. In charge space, the quantum entanglement reaches its maximum value for an optimal interatomic distance that checks the condition U = 2V. Moreover, in spin phase the quantum entanglement increases with external magnetic field h, especially, for anisotropic Ising model with γ = 1.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
