303 citations · 4.6k across the 110 of their papers we have counts for
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Phase diagram and quench dynamics of the Cluster-XY spin chain
Sebastian Montes, Alioscia Hamma
We study the complete phase space and the quench dynamics of an exactly solvable spin chain, the cluster-XY model. In this chain, the cluster term and the XY couplings compete to g…
Optimal correlations in many-body quantum systems
Luigi Amico, Davide Rossini, Alioscia Hamma +1
Information and correlations in a quantum system are closely related through the process of measurement. We explore such relation in a many-body quantum setting, effectively bridgi…
Topological order, entanglement, and quantum memory at finite temperature
Dalimil Mazac, Alioscia Hamma
We compute the topological entropy of the toric code models in arbitrary dimension at finite temperature. We find that the critical temperatures for the existence of full quantum (…
Quantum entanglement in random physical states
Alioscia Hamma, Siddhartha Santra, Paolo Zanardi
Most states in the Hilbert space are maximally entangled. This fact has proven useful to investigate - among other things - the foundations of statistical mechanics. Unfortunately,…
Quantum phase transition between cluster and antiferromagnetic states
Wonmin Son, Luigi Amico, Rosario Fazio +3
We study a Hamiltonian system describing a three spin-1/2 cluster-like interaction competing with an Ising-like exchange. We show that the ground state in the cluster phase possess…