717 citations · 4.5k across the 117 of their papers we have counts for
24 papers · 1 filter
Persistent oscillation of a Cooper-pair condensate of topological defects in a nonintegrable quantum Ising chain
Francis A. Bayocboc, Jacek Dziarmaga, Marek M. Rams +1
We identify persistent oscillations in a nonintegrable quantum Ising chain. In the integrable chain with nearest-neighbor interactions, the nature, origin, and decay of post-transi…
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…
Bang-bang preparation of quantum many-body ground states in two dimensions: optimization of the algorithm with a two-dimensional tensor network
Yintai Zhang, Jacek Dziarmaga
A bang-bang (BB) algorithm prepares the ground state of a two-dimensional (2D) quantum many-body Hamiltonian by evolving an initial product state alternating between $H…
Efficient Representation of Minimally Entangled Typical Thermal States in two dimensions via Projected Entangled Pair States
Aritra Sinha, Marek M. Rams, Jacek Dziarmaga
The Minimally Entangled Typical Thermal States (METTS) are an ensemble of pure states, equivalent to the Gibbs thermal state, that can be efficiently represented by tensor networks…
Time evolution of an infinite projected entangled pair state: a gradient tensor update in the tangent space
Jacek Dziarmaga
Time evolution of an infinite 2D many body quantum lattice system can be described by the Suzuki-Trotter decomposition applied to the infinite projected entangled pair state (iPEPS…
Kink correlations, domain size distribution, and the emptiness formation probability after the Kibble-Zurek quench in the quantum Ising chain
Jacek Dziarmaga, Marek M. Rams
Linear quench of the transverse field drives the quantum Ising chain across a quantum critical point from the paramagnetic to the ferromagnetic phase. We focus on normal and anomal…