23 citations · 28 across the 2 of their papers we have counts for
3 papers
quant-ph2006★ 5 cited
Analysis of entropy of XY Spin Chain
F. Franchini, A. R. Its, B. -Q. Jin +1
Entanglement in the ground state of the XY model on the infinite chain can be measured by the von Neumann entropy of a block of neighboring spins. We study a double scaling limit:…
quant-ph2006★ 23 cited
Entropy of XY Spin Chain and Block Toeplitz Determinants
A. R. Its, B. -Q. Jin, V. E. Korepin
We consider entanglement in the ground state of the XY spin model on infinite chain. We use von Neumann entropy of a sub-system as a measure of entanglement. The entropy of a large…
quant-ph2004
Quantum Communication Through a Spin-Ring with Twisted Boundary Conditions
S. Bose, B. -Q. Jin, V. E. Korepin
We investigate quantum communication between the sites of a spin-ring with twisted boundary conditions. Such boundary conditions can be achieved by a flux through the ring. We find…