2 papers
quant-ph2024
Concurrence distribution in excited states of the 1D spin-1/2 transverse field XY model: two different regions
S. Mahdavifar, Z. Balador, M. R. Soltani
We investigate the variation of concurrence in a spin-1/2 transverse field XY chain system in an excited state. Initially, we precisely solve the eigenvalue problem of the system H…
quant-ph2024
Exploring quantum coherence, spin squeezing and entanglement in an extended spin-1/2 XX Chain
S. Mahdavifar, F. Khastehdel Fumani, B. Haghdoost +1
In this study, we explore the ground state phase diagram of the spin-1/2 XX chain model, which features type three-spin interactions (TSI). This model, while seemingly si…