Alladi Ramakrishnan Hall

Study of maximal bipartite entanglement and robustness in resonating-valence-bond states

Sudhakar Yarlagadda

Saha Institute of Nuclear Physics

We show that maximal bipartite entanglement can be achieved through a
homogenized superposition of valence bond states. Our derived
entanglement rapidly increases with system size and saturates at its
maximum allowed value. We also demonstrate that our highly entangled
states are ground states of an infinite range Heisenberg model (IRHM) and
represent a new class of resonating-valence-bond (RVB) states. The
entangled RVB states produced from our IRHM are robust against interaction
of spins with local phonons and represent a new class of decoherence free
states.