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Showing 2023 · cond-mat.stat-mechShow all
3 papers · 2 filters
cond-mat.stat-mech2023
Quantum Potts chain in alternating field
Péter Lajkó. Wedade Alaaeldin Ahmed Shafik Yehia, Ferenc Iglói
The -state Potts chain with ferromagnetic couplings, , in the presence of a transverse field, , has a quantum phase transition at , which is continuous for $q \le…
cond-mat.stat-mech2023★ 6 cited
Matrix product operator representations for the local conserved quantities of the Heisenberg chain
Kyoichi Yamada, Kohei Fukai
We present the explicit expressions for the matrix product operator (MPO) representation for the local conserved quantities of the Heisenberg chain. The bond dimension of the MPO g…
cond-mat.stat-mech2023★ 1 cited
Renormalization theory of disordered contact processes with heavy-tailed dispersal
Róbert Juhász
Motivated by long-range dispersal in ecological systems, we formulate and apply a general strong-disorder renormalization group (SDRG) framework to describe one-dimensional disorde…