3 papers
cond-mat.str-el2026
AKLT Hamiltonian from Hubbard tripods
Claire Benjamin, Dániel Varjas, Gábor Széchenyi +2
We investigate how the spin-1 Affleck-Kennedy-Lieb-Tasaki (AKLT) Hamiltonian can emerge from a microscopic fermionic model based on half-filled Hubbard tripods. We first show that…
quant-ph2025
Readout sweet spots for spin qubits with strong spin-orbit interaction
Domonkos Svastits, Bence Hetényi, Gábor Széchenyi +4
Qubit readout schemes often deviate from ideal projective measurements, introducing critical issues that limit quantum computing performance. In this work, we model charge-sensing-…
quant-ph2025
Practical scheme for efficient distillation of GHZ states
Áron Rozgonyi, Gábor Széchenyi, Orsolya Kálmán +1
We develop an efficient local operation and classical communication (LOCC) scheme for the distillation of Greenberger-Horne-Zeilinger (GHZ) states from tripartite systems subjected…