32 citations · 34 across the 4 of their papers we have counts for
3 papers · 1 filter
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…
Fidelity approach: the misleading role of finite size level crossing of excited energies
Somayyeh Nemati, Fatemeh Khastehdel Fumani, Saeed Mahdavifar
Here, we show that, although quantum fidelity can truly identify two quantum phase transitions of a one-dimensional spin-1/2 quantum Ising model with competing nearest and next-nea…
Magnetic Entanglement in Spin-1/2 XX Chains
Fatemeh Khastehdel Fumani, Somayyeh Nemati, Saeed Mahdavifar +1
In the study of entanglement in a spin chain, people often consider the nearest-neighbor spins. The motivation is the prevailing role of the short range interactions in creating qu…