3 papers
quant-ph2021
Impurity-induced increase in the thermal quantum correlations and teleportation in an Ising-XXZ diamond chain
Saulo L. L. Silva, Moises Rojas
In this work we analyze the quantum correlations in a spin-1/2 Ising-XXZ diamond chain with one plaquette distorted impurity. We have shown that the introduction of impurity into t…
quant-ph2021
The Hilbert-Schmidt norm as a measure of entanglement in spin-1/2 Heisenberg chain: generalized Bell inequality and distance between states
Saulo L L da Silva, Daniel H. T. Franco
In this letter, we show that the measure of entanglement using the generalized Bell inequality and the distance between states coincide when we use the Hilbert-Schmidt norm. Our co…
quant-ph2021
Thermal entanglement in Heisenberg chains via distance between states
Saulo Luis Lima da Silva
Most of the work involving entanglement measurement focuses on systems that can be modeled by two interacting qubits. This is due to the fact that there are few studies presenting…