12 citations · 21 across the 9 of their papers we have counts for
4 papers · 1 filter
Entanglement-assisted Hamiltonian dynamics learning
Ayaka Usui, Guillermo Abad-López, Hari krishnan SV +2
Approximating the dynamics given by a complex many-body Hamiltonian with a simpler effective model lies at the interface of quantum Hamiltonian learning and quantum simulation. In…
Spinor Bose-Einstein condensate as an analog simulator of molecular bending vibrations
Ayaka Usui, Artur Niezgoda, Manuel Gessner
We demonstrate that spinor Bose-Einstein condensates (BECs) can be operated as an analog simulator of the two-dimensional vibron model. This algebraic model describes bending vibra…
Estimating the best separable approximation of non-pure spin-squeezed states
Julia Mathé, Ayaka Usui, Otfried Gühne +1
We discuss the estimation of the distance of a given mixed many-body quantum state to the set of fully separable states, applied to the concrete scenario of collective spin states.…
Simplifying the simulation of local Hamiltonian dynamics
Ayaka Usui, Anna Sanpera, María García Díaz
Local Hamiltonians, , describe non-trivial -body interactions in quantum many-body systems. Here, we address the dynamical simulatability of a -local Hamiltonian by a si…