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DAVIDE VALENTI

Spin‐Chain‐Star Systems: Entangling Multiple Chains of Spin Qubits

  • Authors: Grimaudo, Roberto; Magalhães de Castro, Antonio Sergio; Messina, Antonino; Valenti, Davide
  • Publication year: 2022
  • Type: Articolo in rivista
  • OA Link: http://hdl.handle.net/10447/560148

Abstract

We consider spin-chain-star systems characterized by N-wise many-body interactions between the spins in each chain and the central one. We show that such systems can be exactly mapped into standard spin-star systems through unitary transformations. Such an approach allows the solution of the dynamic problem of an XX$X X$ spin-chain-star model and transparently shows the emergence of quantum correlations in the system, based on the idea of entanglement between chains.