3 papers
quant-ph2025
Truncating loopy tensor networks by zero-mode gauge fixing
Ihor Sokolov, Yintai Zhang, Jacek Dziarmaga
Loopy tensor networks have internal correlations that often make their compression inefficient. We show that even local bond optimization can make better use of the insight it has…
quant-ph2025
Bang-bang preparation of a quantum many-body ground state in a finite lattice: optimization of the algorithm with a tensor network
Ihor Sokolov, Jacek Dziarmaga
A bang-bang (BB) algorithm prepares the ground state of a lattice quantum many-body Hamiltonian by evolving an initial product state alternating between and …
quant-ph2025
Inhomogeneous adiabatic preparation of a quantum critical ground state in two dimensions
Ihor Sokolov, Francis A. Bayocboc, Marek M. Rams +1
Adiabatic preparation of a critical ground state is hampered by the closing of its energy gap as the system size increases. However, this gap is directly relevant only for a unifor…