2 citations · 7 across the 13 of their papers we have counts for
4 papers · 1 filter
Thermal entanglement transitions from strong symmetry
Siqi Mo, Ehud Altman, Samuel J. Garratt
We study mixed-state entanglement in Gibbs states with strong symmetry, focusing on locally interacting spin systems with ferromagnetic interactions. Our main resu…
Entanglement transitions in translation-invariant tensor networks
Yi-Cheng Wang, Samuel J. Garratt, Ehud Altman
We study the complexity of approximately contracting translation-invariant tensor networks. The computational cost of row-by-row tensor network contraction, which defines a discret…
Quantum matter is weakly entangled at low energies
Samuel J. Garratt, Dmitry A. Abanin
We construct upper bounds on entanglement entropies of many-body quantum states that have fixed energy expectation values with respect to local Hamiltonians. Our focus is on entang…
Intrinsic Error Thresholds in Nearly Critical Toric Codes
Zack Weinstein, Samuel J. Garratt
We study the protection of information in nearly critical topological quantum codes, constructed by perturbing topological stabilizer codes towards continuous quantum phase transit…